US2816514A - Vibratory pump - Google Patents

Vibratory pump Download PDF

Info

Publication number
US2816514A
US2816514A US456793A US45679354A US2816514A US 2816514 A US2816514 A US 2816514A US 456793 A US456793 A US 456793A US 45679354 A US45679354 A US 45679354A US 2816514 A US2816514 A US 2816514A
Authority
US
United States
Prior art keywords
tube
pump
strip
wall
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US456793A
Inventor
Charles E Freese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DESIGNERS FOR INDUSTRY Inc
Original Assignee
DESIGNERS FOR INDUSTRY Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DESIGNERS FOR INDUSTRY Inc filed Critical DESIGNERS FOR INDUSTRY Inc
Priority to US456793A priority Critical patent/US2816514A/en
Application granted granted Critical
Publication of US2816514A publication Critical patent/US2816514A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/08Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09Pumps having electric drive

Definitions

  • This invention relates to fluid pumps and, as one of its objects, aims to provide a pump of an extremely simple construction and which utilizes an undulatory compressive deection of a flexible wall for propelling uid in a displacement passage.
  • the invention is disclosed herein, by way of example, in the embodiment of a vibratory electric pump in which the displacement passage is defined by a flexible-wall tube.
  • this invention provides a pump in which the undulatory compressive deflection is produced by a flexible part or reed extending along the n exible wall.
  • a further object is to provide a pump of the character above referred to in which the displacement passage is defined by a exible-wall tube and the undulatory compressive deflection of the tube is produced by generating a wave motion in the reed.
  • Still another object is to provide a pump of the kind mentioned above in which one end of the reed is attached to a vibrating means, preferably of the electromagnetic type, and the wave motion is generated in the reed by vibration of its attached end.
  • Fig. 1 is an elevational view, somewhat diagrammatic in form and with parts in section, showing la pump embodying the present invention
  • Fig. 2 is an elevational view similar to Fig. l but showing the pump in operation;
  • Figs. 3 and 4 are elevational views similar to Figs. 1 and 2, respectively, and showing a modied construction.
  • the vibratory electric pump is shown in its prelferred embodiment in Figs. l and 2 and, in general, comprises an electromagnet 11, a llexible-wall tube 12 defining a iluid displacement passage 13, and a flexible strip or reed 14 extending along and lying against the tube 12 and in which a wave motion is generated by a vibratory action of the electromagnet.
  • the pump 10 also comprises a housing or support having a mounting portion 15 to which the electromagnet 11 is suitably attached and an abutment portion 16 along which the tube 12 extends.
  • the electromagnet 11 is here shown as comprising a substantially U-shaped frame 18 of magnetic material and an energizing coil 19 on such frame.
  • the frame 18 includes an arm 20 which is seated against and attached to the mounting portion 15 and carries a stem or post 21 around which the coil 19 is disposed.
  • the frame 1S also includes an arm 22 forming an armature member extending across the free end of the post 21 and adapted to be vibrated by changes in magnetic llux produced by the energizing coil 19.
  • the electromagnet 11 is shown in Figs. l and 2 as being an alternating current magnet whose coil 19 is supplied with alternating current of a suitable frequency from ⁇ an available source through the lead conductors 23 and 24.
  • the arm 22 is a swingably connected part of the frame 18, preferably a relatively stii integrally connected resilient arm, such that this arm will be swung toward the stern 21 by energization of the coilv19 with one flux polarity and, upon deenergization of the coil or energization thereof to produce flux of an opposite polarity, the arm will spring away from the stem 21 as indicated by the position 22a shown in Fig. 2.
  • the tube 12 is a tube whose wall 25 is flexible so as to be readily subject to a compressive detlection, such as a tube made of soft vulcanized rubber, soft plastic, fabric or any other suitable flexible material or combinations of tlexible materials.
  • the wall 25 of the tube is preferably a relatively thin wall such that an amplitude of deiection approximately equal to the transverse dimension of the passage 13 can be readily produced by a relatively small amount of compressive force applied to such wall.
  • the passage 13 of the tube 12 is the iluid displacement passage or space in which the pumping action is produced for propelling the fluid.
  • the tube 12 has an inlet portion or end 12a which is connected with a suitable source of iluid, such as a tank or reservoir containing a supply of the fluid, and the end 12b represents the delivery end from which the pumped fluid is discharged, the direction of ilow of the pumped fluid being indicated by the arrow 26.
  • the tube 12 can be of a round cross-sectional shape or, if desired, can have the cross-section of a relatively flat oval.
  • the reed 14 is a llexible strip which lies against, and extends along, the wall of the tube 12 on the side thereof opposite the abutment portion 16.
  • This strip is a relatively thin strip made of metal, plastic or any other suitable exible material.
  • the strip also is preferably resilient in character as well as exible, such that a wave motion can be generated in the strip and will travel lengthwise therealong, in response to a vibratory movement imparted to one end of the strip in a direction transverse to the plane of the strip.
  • the strip 14 has the end 14a thereof suitably connected with ⁇ the .vibratory arm 22 of the electromagnet 11 as by means of an intervening connecting block 27.
  • the major portion of the length of the strip 14 extends along the tube 12 in a downstream direction away from the connection with the vibratory arm 22, such that the wave motion generated in the strip will move progressively therealong away from the connection 27 and in the downstream direction of the passage 13.
  • the flexible strip 14 can, if desired, be cemented or otherwise suitably secured to the wall 25 of the tube.
  • the tube 12 is positioned adjacent the vibratory arm ⁇ 22 of the electromagnet by the abutment portion 16, such that the vibration of the arm 22 will be eiective on the tube through the flexible strip 14 with the wave motion generated in the strip causing a progressive compressive deflection of the wall of the tube as represented in Fig. 2.
  • the successive compressive deflections thus produced in the tube 12 are represented by the displaced wall portions 28 and 29 which close, or partially close, the passage of the tube at axially spaced points,- such that a pump charnber 30 is dened in the intercepted portion of the tube passage.
  • the compressively displaced wall portions 2S and 29 travel along the tube in the direction of the arrow 26 causing a similar axial movement of the pump chamber 30 therealong.
  • another such pumping chamber is formed at or near the attached end 14a of the strip, such that during the normal operation of the pump, the rapid vibratory movement of the arm 22 causes the pump chambers to be produced in a rapid succession beneath the exible strip 14, and a substantially continuous stream of liuid will thus be propelled along the displacement passage 13.
  • Pigs. 3 and 4 of the drawing show a vibratory electric pump 32 which is generally similar to the pump 10 and functions in substantially the same manner.
  • the pump 12 is operated by direct current supplied to the coil 19 through the lead conductors 33 and 34.
  • the vibratory action of the arm 22 is used to actuate a makeand-break switch device 35 for automatically interrupting the flow of energizing current.
  • the pump 32 is similar to the pump 10 and the same reference characters have been used to designate corresponding parts.
  • the energizing strength of the magnet coil 19, the flexibility of the arm 22 and the iiexibility of the tube wall 25 will have suitable values, such that the above-described undulatory compressive action on the tube 12 will be obtained for propelling the fiuid along the passage 13.
  • a very satisfactory pumping action is obtainable particularly when the natural vibration frequency of the arm 22 is approximately the same as the frequency of the alternating current being supplied to the magnet coil 19.
  • a flexible-wall tube defining a fluid displacement passage
  • means for subjecting the wall of said tube to an undulatory compressive deflection comprising a flexible strip extending along and lying against said tube, and vibration producing means operably connected with said strip to vibrate the same, the undulatory compressive deflection of the wall of said tube by said strip being effective on said displacement passage to propel uid along the latter.
  • a pump comprising, an abutment means, means defining a uid displacement passage and including a flexible wall movable relative to said abutment means, a magnet having an energizing coil and a vibratory member responsive to coil. energization, and a flexible part extending along and lying against said wall and being connected with said vibratory member for an undulatory tiexing of said part and wall in response to vibration of said member.
  • a pump comprising, means defining a fluid displacement passage having a flexible wall, a flexible reed on one side of said passage and extending along said wall,
  • a pump comprising, a flexible-wall tube defining a fluid displacement passage, an abutment means on one side of said tube, a magnet having an energizing coil and a vibratory member responsive to coil energization, and a flexible strip extending along and lying against the wall of said tube on the other side thereof substantially opposite said abutment means, said strip having one end thereof connected with said member, the movement of said member and the exibility of said strip being such that vibrations imparted to said one end cause a wave motion to transverse said strip and subject said tube to an undulatory compressive defiection for propelling fluid along said passage.
  • a pump comprising, an abutment means, an electromagnet including a vibratory member spaced from said abutment means, a liexible-wall tube extending between said member and abutment means and defining a fiuid passage, and a flexible strip extending along and lying against the side of said tube remote from said abutment means, said strip having one end thereof connected with said member for an undulatory flexing of said strip and an undulatory compressive deflection of the wall of said tube in response to vibration of said member.
  • a pump comprising, an abutment means, a magnet including an energizing coil and a frame having a vibratory resilient arm spaced from said abutment means and adapted to be stressed by movement away from said abutment means in response to energization of said coil, said arm having a return movement in a direction toward said abutment means, a flexible-wall tube extending between said arm and abutment means and defining a fluid passage, and a flexible strip extending along and lying against said tube with one end of the strip connected with said arm such that said strip will cause an undulatory compressive deflection of said tube in response to vibration of said arm for propelling fluid in said passage.
  • a pump as defined in claim 6 in which the magnet is an alternating current magnet and circuit means connected with said coil supplies alternating current thereto.
  • a pump as defined in claim 6 in which the magnet is an alternating current magnet and circuit means connected with said coil supplies alternating current thereto, and in which the natural vibration frequency of said arm is approximately equal to the frequency of the alternating current being supplied.
  • a pump as defined in claim 6 in which direct current supply circuit means is connected with said coil and is controlled by switch contacts responsive to the vibratory movement of said arm.

Description

Dec. 17, 1957 c. E, FREESE A 2,816,514
VIBRATORY PUMP Filed sept. 17, 1954 w" zglNl/ENTOR. 25 50 Cyn/aes /CkEa-.se
Patented Dec. 17, 1957 $16,514 'vmRAToRY' PUMP Charles E. Freese, Parma, Ohio, assignor to Designers for Industry, Inc., Cleveland, Ohio, a corporation of Ohio Application September 17, 1954, Serial No. 456,793
9 Claims. (Cl. 10S- 152) This invention relates to fluid pumps and, as one of its objects, aims to provide a pump of an extremely simple construction and which utilizes an undulatory compressive deection of a flexible wall for propelling uid in a displacement passage. The invention is disclosed herein, by way of example, in the embodiment of a vibratory electric pump in which the displacement passage is defined by a flexible-wall tube.
As another of its objects, this invention provides a pump in which the undulatory compressive deflection is produced by a flexible part or reed extending along the n exible wall.
A further object is to provide a pump of the character above referred to in which the displacement passage is defined by a exible-wall tube and the undulatory compressive deflection of the tube is produced by generating a wave motion in the reed.
Still another object is to provide a pump of the kind mentioned above in which one end of the reed is attached to a vibrating means, preferably of the electromagnetic type, and the wave motion is generated in the reed by vibration of its attached end.
Other objects and advantages of the invention will be apparent in the following detailed description and in the accompanying sheet of drawings which is made a part hereof and in which:
Fig. 1 is an elevational view, somewhat diagrammatic in form and with parts in section, showing la pump embodying the present invention;
Fig. 2 is an elevational view similar to Fig. l but showing the pump in operation; and
Figs. 3 and 4 are elevational views similar to Figs. 1 and 2, respectively, and showing a modied construction.
The vibratory electric pump is shown in its prelferred embodiment in Figs. l and 2 and, in general, comprises an electromagnet 11, a llexible-wall tube 12 defining a iluid displacement passage 13, and a flexible strip or reed 14 extending along and lying against the tube 12 and in which a wave motion is generated by a vibratory action of the electromagnet. The pump 10 also comprises a housing or support having a mounting portion 15 to which the electromagnet 11 is suitably attached and an abutment portion 16 along which the tube 12 extends.
The electromagnet 11 is here shown as comprising a substantially U-shaped frame 18 of magnetic material and an energizing coil 19 on such frame. The frame 18 includes an arm 20 which is seated against and attached to the mounting portion 15 and carries a stem or post 21 around which the coil 19 is disposed. The frame 1S also includes an arm 22 forming an armature member extending across the free end of the post 21 and adapted to be vibrated by changes in magnetic llux produced by the energizing coil 19.
The electromagnet 11 is shown in Figs. l and 2 as being an alternating current magnet whose coil 19 is supplied with alternating current of a suitable frequency from` an available source through the lead conductors 23 and 24. The arm 22 is a swingably connected part of the frame 18, preferably a relatively stii integrally connected resilient arm, such that this arm will be swung toward the stern 21 by energization of the coilv19 with one flux polarity and, upon deenergization of the coil or energization thereof to produce flux of an opposite polarity, the arm will spring away from the stem 21 as indicated by the position 22a shown in Fig. 2.
The tube 12 is a tube whose wall 25 is flexible so as to be readily subject to a compressive detlection, such as a tube made of soft vulcanized rubber, soft plastic, fabric or any other suitable flexible material or combinations of tlexible materials. The wall 25 of the tube is preferably a relatively thin wall such that an amplitude of deiection approximately equal to the transverse dimension of the passage 13 can be readily produced by a relatively small amount of compressive force applied to such wall.
The passage 13 of the tube 12 is the iluid displacement passage or space in which the pumping action is produced for propelling the fluid. The tube 12 has an inlet portion or end 12a which is connected with a suitable source of iluid, such as a tank or reservoir containing a supply of the fluid, and the end 12b represents the delivery end from which the pumped fluid is discharged, the direction of ilow of the pumped fluid being indicated by the arrow 26. The tube 12 can be of a round cross-sectional shape or, if desired, can have the cross-section of a relatively flat oval.
The reed 14 is a llexible strip which lies against, and extends along, the wall of the tube 12 on the side thereof opposite the abutment portion 16. This strip is a relatively thin strip made of metal, plastic or any other suitable exible material. The strip also is preferably resilient in character as well as exible, such that a wave motion can be generated in the strip and will travel lengthwise therealong, in response to a vibratory movement imparted to one end of the strip in a direction transverse to the plane of the strip.
The strip 14 has the end 14a thereof suitably connected with `the .vibratory arm 22 of the electromagnet 11 as by means of an intervening connecting block 27. The major portion of the length of the strip 14 extends along the tube 12 in a downstream direction away from the connection with the vibratory arm 22, such that the wave motion generated in the strip will move progressively therealong away from the connection 27 and in the downstream direction of the passage 13. The flexible strip 14 can, if desired, be cemented or otherwise suitably secured to the wall 25 of the tube.
The tube 12 is positioned adjacent the vibratory arm` 22 of the electromagnet by the abutment portion 16, such that the vibration of the arm 22 will be eiective on the tube through the flexible strip 14 with the wave motion generated in the strip causing a progressive compressive deflection of the wall of the tube as represented in Fig. 2. The successive compressive deflections thus produced in the tube 12 are represented by the displaced wall portions 28 and 29 which close, or partially close, the passage of the tube at axially spaced points,- such that a pump charnber 30 is dened in the intercepted portion of the tube passage.
As the wave motion traverses the exible strip 14, the compressively displaced wall portions 2S and 29 travel along the tube in the direction of the arrow 26 causing a similar axial movement of the pump chamber 30 therealong. As the pump chamber 30 moves toward and past the free end of the ilexible strip 14, another such pumping chamber is formed at or near the attached end 14a of the strip, such that during the normal operation of the pump, the rapid vibratory movement of the arm 22 causes the pump chambers to be produced in a rapid succession beneath the exible strip 14, and a substantially continuous stream of liuid will thus be propelled along the displacement passage 13.
Pigs. 3 and 4 of the drawing show a vibratory electric pump 32 which is generally similar to the pump 10 and functions in substantially the same manner. The pump 12, however, is operated by direct current supplied to the coil 19 through the lead conductors 33 and 34. The vibratory action of the arm 22 is used to actuate a makeand-break switch device 35 for automatically interrupting the flow of energizing current. In other respects, the pump 32 is similar to the pump 10 and the same reference characters have been used to designate corresponding parts.
In the pumps and 32 described above, the energizing strength of the magnet coil 19, the flexibility of the arm 22 and the iiexibility of the tube wall 25 will have suitable values, such that the above-described undulatory compressive action on the tube 12 will be obtained for propelling the fiuid along the passage 13. In the case of the alternating current magnet 11, a very satisfactory pumping action is obtainable particularly when the natural vibration frequency of the arm 22 is approximately the same as the frequency of the alternating current being supplied to the magnet coil 19.
From the accompanying drawing and the foregoing detailed description, it will now be readily understood that this invention provides a pump of a very simple construction but which will operate satisfactorily and in a practical and efficient manner. It will now also be understood that a new pumping method has been provided by this invention in which the pumping action is obtained by generating a wave motion in a flexible strip lying against the wall of a fiexible-wall tube and which wave motion causes a compressive undulatory deflection of the wall of the tube for propelling the uid along the displacement passage. Pumps embodying the principle and' construction herein disclosed can be applied to numerous practical uses and will render trouble-free service for prolonged periods.
Although the invention has been illustrated and described herein to a somewhat detailed extent, it will be understood, of course, that the invention is not to be regarded as being limited correspondingly in scope, but includes all changes and modifications coming within the spirit of the invention and the language of the claims hereof.
Having thus described my invention, I claim:
1. In a pump, a flexible-wall tube defining a fluid displacement passage, means for subjecting the wall of said tube to an undulatory compressive deflection comprising a flexible strip extending along and lying against said tube, and vibration producing means operably connected with said strip to vibrate the same, the undulatory compressive deflection of the wall of said tube by said strip being effective on said displacement passage to propel uid along the latter.
2. A pump comprising, an abutment means, means defining a uid displacement passage and including a flexible wall movable relative to said abutment means, a magnet having an energizing coil and a vibratory member responsive to coil. energization, and a flexible part extending along and lying against said wall and being connected with said vibratory member for an undulatory tiexing of said part and wall in response to vibration of said member.
3. A pump comprising, means defining a fluid displacement passage having a flexible wall, a flexible reed on one side of said passage and extending along said wall,
an abutment means on the other side of said passage, and a magnet having a vibratory member connected with said reed adjacent one end of the latter and effective through the reed in imparting an undulatory tiexing to said wall for propelling liuid in said passage.
4. A pump comprising, a flexible-wall tube defining a fluid displacement passage, an abutment means on one side of said tube, a magnet having an energizing coil and a vibratory member responsive to coil energization, and a flexible strip extending along and lying against the wall of said tube on the other side thereof substantially opposite said abutment means, said strip having one end thereof connected with said member, the movement of said member and the exibility of said strip being such that vibrations imparted to said one end cause a wave motion to transverse said strip and subject said tube to an undulatory compressive defiection for propelling fluid along said passage.
5. A pump comprising, an abutment means, an electromagnet including a vibratory member spaced from said abutment means, a liexible-wall tube extending between said member and abutment means and defining a fiuid passage, and a flexible strip extending along and lying against the side of said tube remote from said abutment means, said strip having one end thereof connected with said member for an undulatory flexing of said strip and an undulatory compressive deflection of the wall of said tube in response to vibration of said member.
6. A pump comprising, an abutment means, a magnet including an energizing coil and a frame having a vibratory resilient arm spaced from said abutment means and adapted to be stressed by movement away from said abutment means in response to energization of said coil, said arm having a return movement in a direction toward said abutment means, a flexible-wall tube extending between said arm and abutment means and defining a fluid passage, and a flexible strip extending along and lying against said tube with one end of the strip connected with said arm such that said strip will cause an undulatory compressive deflection of said tube in response to vibration of said arm for propelling fluid in said passage.
7. A pump as defined in claim 6 in which the magnet is an alternating current magnet and circuit means connected with said coil supplies alternating current thereto.
8. A pump as defined in claim 6 in which the magnet is an alternating current magnet and circuit means connected with said coil supplies alternating current thereto, and in which the natural vibration frequency of said arm is approximately equal to the frequency of the alternating current being supplied.
9. A pump as defined in claim 6 in which direct current supply circuit means is connected with said coil and is controlled by switch contacts responsive to the vibratory movement of said arm.
References Cited in the file of this patent UNITED STATES PATENTS
US456793A 1954-09-17 1954-09-17 Vibratory pump Expired - Lifetime US2816514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US456793A US2816514A (en) 1954-09-17 1954-09-17 Vibratory pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456793A US2816514A (en) 1954-09-17 1954-09-17 Vibratory pump

Publications (1)

Publication Number Publication Date
US2816514A true US2816514A (en) 1957-12-17

Family

ID=23814178

Family Applications (1)

Application Number Title Priority Date Filing Date
US456793A Expired - Lifetime US2816514A (en) 1954-09-17 1954-09-17 Vibratory pump

Country Status (1)

Country Link
US (1) US2816514A (en)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888877A (en) * 1956-04-19 1959-06-02 Ohio Commw Eng Co Apparatus for pumping
US3175498A (en) * 1963-02-05 1965-03-30 British Ind Corp Slurry metering pump
US3314371A (en) * 1965-09-22 1967-04-18 St Barnabas Free Home Inc Diaphragm pump
US3733149A (en) * 1969-05-07 1973-05-15 Bendix Corp Flexible tube pump
US3865729A (en) * 1972-07-26 1975-02-11 Ulrich Baensch Pump for liquids, especially circulating pump for aquariums
US4015914A (en) * 1972-05-18 1977-04-05 Delta Scientific Corporation Metering pump wherein tubular pump is responsive to force impulses
US4384829A (en) * 1980-11-28 1983-05-24 Andros Incorporated Pump and actuator mechanism
US4457673A (en) * 1980-11-28 1984-07-03 Novacor Medical Corporation Pump and actuator mechanism
US4488099A (en) * 1982-12-03 1984-12-11 Novacor Medical Corporation Real time servo control apparatus and method
US4501405A (en) * 1983-06-21 1985-02-26 Bunnell Life Systems, Inc. Frictionless valve/pump
US4519043A (en) * 1982-07-20 1985-05-21 Novacor Medical Corporation Solenoid activated closure device
US4565497A (en) * 1982-12-03 1986-01-21 Novacor Medical Corporation Pump actuator
DE3741262A1 (en) * 1987-12-05 1989-06-22 Suttner Gmbh & Co Kg HOSE PUMP
US5193986A (en) * 1992-01-06 1993-03-16 Grant Manufacturing Corporation Fluid pump
US5494415A (en) * 1994-09-12 1996-02-27 Morita; Yoshimitsu Magnetically-driven pump
US20050069425A1 (en) * 1999-07-20 2005-03-31 Deka Products Limited Partnership Tube occluder for occluding collapsible tubes
US20080253911A1 (en) * 2007-02-27 2008-10-16 Deka Products Limited Partnership Pumping Cassette
US20100234809A1 (en) * 2009-03-06 2010-09-16 Deka Products Limited Partnership Devices and Methods For Occluding a Flexible Tube
US20100302752A1 (en) * 2009-06-02 2010-12-02 Lg Innotek Co., Ltd. Dual mode vibrator
US8197235B2 (en) 2009-02-18 2012-06-12 Davis David L Infusion pump with integrated permanent magnet
US8246826B2 (en) 2007-02-27 2012-08-21 Deka Products Limited Partnership Hemodialysis systems and methods
US8292594B2 (en) 2006-04-14 2012-10-23 Deka Products Limited Partnership Fluid pumping systems, devices and methods
US8353864B2 (en) 2009-02-18 2013-01-15 Davis David L Low cost disposable infusion pump
US8357298B2 (en) 2007-02-27 2013-01-22 Deka Products Limited Partnership Hemodialysis systems and methods
US8393690B2 (en) 2007-02-27 2013-03-12 Deka Products Limited Partnership Enclosure for a portable hemodialysis system
US8409441B2 (en) 2007-02-27 2013-04-02 Deka Products Limited Partnership Blood treatment systems and methods
US8425471B2 (en) 2007-02-27 2013-04-23 Deka Products Limited Partnership Reagent supply for a hemodialysis system
US20130118619A1 (en) * 2010-06-02 2013-05-16 Technische Universität Berlin Valve device for controlling a flow of a fluid through a fluid channel, arrangement and multi-way valve device
US8491184B2 (en) 2007-02-27 2013-07-23 Deka Products Limited Partnership Sensor apparatus systems, devices and methods
US8499780B2 (en) 2007-02-27 2013-08-06 Deka Products Limited Partnership Cassette system integrated apparatus
US8562834B2 (en) 2007-02-27 2013-10-22 Deka Products Limited Partnership Modular assembly for a portable hemodialysis system
US8771508B2 (en) 2008-08-27 2014-07-08 Deka Products Limited Partnership Dialyzer cartridge mounting arrangement for a hemodialysis system
US8863772B2 (en) 2008-08-27 2014-10-21 Deka Products Limited Partnership Occluder for a medical infusion system
US9028440B2 (en) 2008-01-23 2015-05-12 Deka Products Limited Partnership Fluid flow occluder and methods of use for medical treatment systems
US9028691B2 (en) 2007-02-27 2015-05-12 Deka Products Limited Partnership Blood circuit assembly for a hemodialysis system
US9364655B2 (en) 2012-05-24 2016-06-14 Deka Products Limited Partnership Flexible tubing occlusion assembly
US9517295B2 (en) 2007-02-27 2016-12-13 Deka Products Limited Partnership Blood treatment systems and methods
US9597442B2 (en) 2007-02-27 2017-03-21 Deka Products Limited Partnership Air trap for a medical infusion device
US9724458B2 (en) 2011-05-24 2017-08-08 Deka Products Limited Partnership Hemodialysis system
US10201650B2 (en) 2009-10-30 2019-02-12 Deka Products Limited Partnership Apparatus and method for detecting disconnection of an intravascular access device
US10537671B2 (en) 2006-04-14 2020-01-21 Deka Products Limited Partnership Automated control mechanisms in a hemodialysis apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US453277A (en) * 1891-06-02 Vacuum-pump
US991708A (en) * 1910-01-18 1911-05-09 Johan Sigismund Fasting Pump.
US1922196A (en) * 1932-03-17 1933-08-15 Nordberg Manufacturing Co Pump
US2456133A (en) * 1943-02-15 1948-12-14 Ici Ltd Pump for gaseous working fluids
US2471796A (en) * 1945-10-01 1949-05-31 George A Thiberg Air pump for aquarium aerators
US2562552A (en) * 1941-03-07 1951-07-31 Henry Louis Joseph Measuring pump with flexible tubing
US2659310A (en) * 1950-09-02 1953-11-17 Ryba Anton Electromagnetic pumping device for pumping fluids

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US453277A (en) * 1891-06-02 Vacuum-pump
US991708A (en) * 1910-01-18 1911-05-09 Johan Sigismund Fasting Pump.
US1922196A (en) * 1932-03-17 1933-08-15 Nordberg Manufacturing Co Pump
US2562552A (en) * 1941-03-07 1951-07-31 Henry Louis Joseph Measuring pump with flexible tubing
US2456133A (en) * 1943-02-15 1948-12-14 Ici Ltd Pump for gaseous working fluids
US2471796A (en) * 1945-10-01 1949-05-31 George A Thiberg Air pump for aquarium aerators
US2659310A (en) * 1950-09-02 1953-11-17 Ryba Anton Electromagnetic pumping device for pumping fluids

Cited By (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888877A (en) * 1956-04-19 1959-06-02 Ohio Commw Eng Co Apparatus for pumping
US3175498A (en) * 1963-02-05 1965-03-30 British Ind Corp Slurry metering pump
US3314371A (en) * 1965-09-22 1967-04-18 St Barnabas Free Home Inc Diaphragm pump
US3733149A (en) * 1969-05-07 1973-05-15 Bendix Corp Flexible tube pump
US4015914A (en) * 1972-05-18 1977-04-05 Delta Scientific Corporation Metering pump wherein tubular pump is responsive to force impulses
US3865729A (en) * 1972-07-26 1975-02-11 Ulrich Baensch Pump for liquids, especially circulating pump for aquariums
US4384829A (en) * 1980-11-28 1983-05-24 Andros Incorporated Pump and actuator mechanism
US4457673A (en) * 1980-11-28 1984-07-03 Novacor Medical Corporation Pump and actuator mechanism
US4519043A (en) * 1982-07-20 1985-05-21 Novacor Medical Corporation Solenoid activated closure device
US4488099A (en) * 1982-12-03 1984-12-11 Novacor Medical Corporation Real time servo control apparatus and method
US4565497A (en) * 1982-12-03 1986-01-21 Novacor Medical Corporation Pump actuator
US4501405A (en) * 1983-06-21 1985-02-26 Bunnell Life Systems, Inc. Frictionless valve/pump
DE3741262A1 (en) * 1987-12-05 1989-06-22 Suttner Gmbh & Co Kg HOSE PUMP
US4948350A (en) * 1987-12-05 1990-08-14 Suttner Gmbh & Co. Kg Hose pump
US5193986A (en) * 1992-01-06 1993-03-16 Grant Manufacturing Corporation Fluid pump
US5494415A (en) * 1994-09-12 1996-02-27 Morita; Yoshimitsu Magnetically-driven pump
US9494150B2 (en) 1999-07-20 2016-11-15 Deka Products Limited Partnership Pump chamber configured to contain a residual fluid volume for inhibiting the pumping of a gas
US9115709B2 (en) 1999-07-20 2015-08-25 Deka Products Limited Partnership Fluid pumping apparatus for use with a removable fluid pumping cartridge
US9593679B2 (en) 1999-07-20 2017-03-14 Deka Products Limited Partnership Fluid pumping apparatus for use with a removable fluid pumping cartridge
US9494151B2 (en) 1999-07-20 2016-11-15 Deka Products Limited Partnership System, method, and apparatus for utilizing a pumping cassette
US7559524B2 (en) * 1999-07-20 2009-07-14 Deka Products Limited Partnership Tube occluder for occluding collapsible tubes
US20090202367A1 (en) * 1999-07-20 2009-08-13 Deka Products Limited Partnership Tube occluder and method for occluding collapsible tubes
US9593678B2 (en) 1999-07-20 2017-03-14 Deka Products Limited Partnership System, method, and apparatus for utilizing a pumping cassette
US8556225B2 (en) 1999-07-20 2013-10-15 Deka Products Limited Partnership Pump chamber configured to contain a residual fluid volume for inhibiting the pumping of a gas
US7766301B2 (en) 1999-07-20 2010-08-03 Deka Products Limited Partnership Tube occluder and method for occluding collapsible tubes
US9488167B2 (en) 1999-07-20 2016-11-08 Deka Products Limited Partnership System, method, and apparatus for utilizing a pumping cassette
US20050069425A1 (en) * 1999-07-20 2005-03-31 Deka Products Limited Partnership Tube occluder for occluding collapsible tubes
US9039395B2 (en) 1999-07-20 2015-05-26 Deka Products Limited Partnership System, method, and apparatus for utilizing a pumping cassette
US8292594B2 (en) 2006-04-14 2012-10-23 Deka Products Limited Partnership Fluid pumping systems, devices and methods
US8870549B2 (en) 2006-04-14 2014-10-28 Deka Products Limited Partnership Fluid pumping systems, devices and methods
US10537671B2 (en) 2006-04-14 2020-01-21 Deka Products Limited Partnership Automated control mechanisms in a hemodialysis apparatus
US8459292B2 (en) 2007-02-27 2013-06-11 Deka Products Limited Partnership Cassette system integrated apparatus
US8992189B2 (en) 2007-02-27 2015-03-31 Deka Products Limited Partnership Cassette system integrated apparatus
US8409441B2 (en) 2007-02-27 2013-04-02 Deka Products Limited Partnership Blood treatment systems and methods
US8425471B2 (en) 2007-02-27 2013-04-23 Deka Products Limited Partnership Reagent supply for a hemodialysis system
US10077766B2 (en) 2007-02-27 2018-09-18 Deka Products Limited Partnership Pumping cassette
US9649418B2 (en) 2007-02-27 2017-05-16 Deka Products Limited Partnership Pumping cassette
US9987407B2 (en) 2007-02-27 2018-06-05 Deka Products Limited Partnership Blood circuit assembly for a hemodialysis system
US8491184B2 (en) 2007-02-27 2013-07-23 Deka Products Limited Partnership Sensor apparatus systems, devices and methods
US8499780B2 (en) 2007-02-27 2013-08-06 Deka Products Limited Partnership Cassette system integrated apparatus
US8545698B2 (en) 2007-02-27 2013-10-01 Deka Products Limited Partnership Hemodialysis systems and methods
US8357298B2 (en) 2007-02-27 2013-01-22 Deka Products Limited Partnership Hemodialysis systems and methods
US8562834B2 (en) 2007-02-27 2013-10-22 Deka Products Limited Partnership Modular assembly for a portable hemodialysis system
US8721884B2 (en) 2007-02-27 2014-05-13 Deka Products Limited Partnership Hemodialysis systems and methods
US8721879B2 (en) 2007-02-27 2014-05-13 Deka Products Limited Partnership Hemodialysis systems and methods
US10441697B2 (en) 2007-02-27 2019-10-15 Deka Products Limited Partnership Modular assembly for a portable hemodialysis system
US9951768B2 (en) 2007-02-27 2018-04-24 Deka Products Limited Partnership Cassette system integrated apparatus
US8317492B2 (en) 2007-02-27 2012-11-27 Deka Products Limited Partnership Pumping cassette
US8888470B2 (en) 2007-02-27 2014-11-18 Deka Products Limited Partnership Pumping cassette
US8926294B2 (en) 2007-02-27 2015-01-06 Deka Products Limited Partnership Pumping cassette
US9603985B2 (en) 2007-02-27 2017-03-28 Deka Products Limited Partnership Blood treatment systems and methods
US8985133B2 (en) 2007-02-27 2015-03-24 Deka Products Limited Partnership Cassette system integrated apparatus
US8393690B2 (en) 2007-02-27 2013-03-12 Deka Products Limited Partnership Enclosure for a portable hemodialysis system
US8992075B2 (en) 2007-02-27 2015-03-31 Deka Products Limited Partnership Sensor apparatus systems, devices and methods
US9597442B2 (en) 2007-02-27 2017-03-21 Deka Products Limited Partnership Air trap for a medical infusion device
US9028691B2 (en) 2007-02-27 2015-05-12 Deka Products Limited Partnership Blood circuit assembly for a hemodialysis system
US8273049B2 (en) 2007-02-27 2012-09-25 Deka Products Limited Partnership Pumping cassette
US9700660B2 (en) 2007-02-27 2017-07-11 Deka Products Limited Partnership Pumping cassette
US9115708B2 (en) 2007-02-27 2015-08-25 Deka Products Limited Partnership Fluid balancing systems and methods
US8246826B2 (en) 2007-02-27 2012-08-21 Deka Products Limited Partnership Hemodialysis systems and methods
US9272082B2 (en) 2007-02-27 2016-03-01 Deka Products Limited Partnership Pumping cassette
US9302037B2 (en) 2007-02-27 2016-04-05 Deka Products Limited Partnership Hemodialysis systems and methods
US9677554B2 (en) 2007-02-27 2017-06-13 Deka Products Limited Partnership Cassette system integrated apparatus
US10500327B2 (en) 2007-02-27 2019-12-10 Deka Products Limited Partnership Blood circuit assembly for a hemodialysis system
US10851769B2 (en) 2007-02-27 2020-12-01 Deka Products Limited Partnership Pumping cassette
US20090004033A1 (en) * 2007-02-27 2009-01-01 Deka Products Limited Partnership Pumping Cassette
US9517295B2 (en) 2007-02-27 2016-12-13 Deka Products Limited Partnership Blood treatment systems and methods
US9535021B2 (en) 2007-02-27 2017-01-03 Deka Products Limited Partnership Sensor apparatus systems, devices and methods
US9539379B2 (en) 2007-02-27 2017-01-10 Deka Products Limited Partnership Enclosure for a portable hemodialysis system
US9555179B2 (en) 2007-02-27 2017-01-31 Deka Products Limited Partnership Hemodialysis systems and methods
US20080253912A1 (en) * 2007-02-27 2008-10-16 Deka Products Limited Partnership Pumping Cassette
US20080253911A1 (en) * 2007-02-27 2008-10-16 Deka Products Limited Partnership Pumping Cassette
US9028440B2 (en) 2008-01-23 2015-05-12 Deka Products Limited Partnership Fluid flow occluder and methods of use for medical treatment systems
US9839776B2 (en) 2008-01-23 2017-12-12 Deka Products Limited Partnership Fluid flow occluder and methods of use for medical treatment systems
US8771508B2 (en) 2008-08-27 2014-07-08 Deka Products Limited Partnership Dialyzer cartridge mounting arrangement for a hemodialysis system
US8863772B2 (en) 2008-08-27 2014-10-21 Deka Products Limited Partnership Occluder for a medical infusion system
US8197235B2 (en) 2009-02-18 2012-06-12 Davis David L Infusion pump with integrated permanent magnet
US8353864B2 (en) 2009-02-18 2013-01-15 Davis David L Low cost disposable infusion pump
US20100234809A1 (en) * 2009-03-06 2010-09-16 Deka Products Limited Partnership Devices and Methods For Occluding a Flexible Tube
US8950728B2 (en) 2009-03-06 2015-02-10 Deka Products Limited Partnership Devices and methods for occluding a flexible tube
US20100302752A1 (en) * 2009-06-02 2010-12-02 Lg Innotek Co., Ltd. Dual mode vibrator
US8461969B2 (en) * 2009-06-02 2013-06-11 Lg Innotek Co., Ltd. Dual mode vibrator
US10201650B2 (en) 2009-10-30 2019-02-12 Deka Products Limited Partnership Apparatus and method for detecting disconnection of an intravascular access device
US20130118619A1 (en) * 2010-06-02 2013-05-16 Technische Universität Berlin Valve device for controlling a flow of a fluid through a fluid channel, arrangement and multi-way valve device
EP2575949B1 (en) * 2010-06-02 2019-11-06 Technische Universität Berlin Arrangement of a valve device for controlling a flow of a fluid through a fluid channel
US9067051B2 (en) * 2010-06-02 2015-06-30 Technische Universitat Berlin Valve device for controlling a flow of a fluid through a fluid channel, arrangement and multi-way valve device
US9724458B2 (en) 2011-05-24 2017-08-08 Deka Products Limited Partnership Hemodialysis system
US10780213B2 (en) 2011-05-24 2020-09-22 Deka Products Limited Partnership Hemodialysis system
US9700711B2 (en) 2012-05-24 2017-07-11 Deka Products Limited Partnership Flexible tubing occlusion assembly
US9364655B2 (en) 2012-05-24 2016-06-14 Deka Products Limited Partnership Flexible tubing occlusion assembly
US10850089B2 (en) 2012-05-24 2020-12-01 Deka Products Limited Partnership Flexible tubing occlusion assembly
US11766554B2 (en) 2012-05-24 2023-09-26 Deka Products Limited Partnership Flexible tubing occlusion assembly

Similar Documents

Publication Publication Date Title
US2816514A (en) Vibratory pump
US2855244A (en) Sonic liquid-spraying and atomizing apparatus
US20020146333A1 (en) Vibrating membrane fluid circulator
US3417268A (en) Moving coil electro-mechanical device
IE42698B1 (en) An oscillating vane pump for liquids
EP0063727A3 (en) Fluid pump
US2312712A (en) Fluid pump
US5073095A (en) Whisper quiet electromagnetic fluid pump
US2471594A (en) Resonant magnetic switch assembly
US3171360A (en) Pulsation type pumps
US3190229A (en) Method and apparatus for conveying liquids
US5607292A (en) Electromagnetic disk pump
US3701614A (en) Electromagnetic pump
US2706795A (en) Reciprocating electromagnetic motor
US2801591A (en) Electro-magnetic pump
US3005313A (en) Self-reversing apparatus
US2986662A (en) Vibratory motor
US2926615A (en) Electro-dynamic fuel pump
US1493340A (en) Device for converting a continuous flow of energy into a wavelike flow of energy
US2722891A (en) Electromagnetic pump
US2933051A (en) Method and apparatus for pumping
US6107715A (en) Non-linear spring system for vibrating equipment
US3406670A (en) Magnetostrictively actuated fuel system for engines
US2468343A (en) Reciprocatory electromagnetic motor
JPH107226A (en) Vibrating device provided with mass