US2415150A - Pneumatic mattress - Google Patents

Pneumatic mattress Download PDF

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US2415150A
US2415150A US598259A US59825945A US2415150A US 2415150 A US2415150 A US 2415150A US 598259 A US598259 A US 598259A US 59825945 A US59825945 A US 59825945A US 2415150 A US2415150 A US 2415150A
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mattress
cells
pneumatic
base member
construction
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US598259A
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Stein Michael Russell
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C23/00Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/04Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
    • A47C23/047Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled incorporating inflatable elements

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  • a further object is to construct the pneumatic cells out of a sheet material formed oi! a vinyl resin or other such plastic which, while suinciently pliable for its intended, purpose, is not so stretchable as to require the use or excessive air pressures tomaintain the cells against collapse under the weight of the person resting on the mattress.
  • the mattress of the present invention when constructed of such plastic material is ideally suitable for use in hospitals and infant cribs as well as in tropical countries.
  • Still another object of the invention is to provide a cellular construction 01 mattress and the like wherein the various cells thereof may be filled with air at different pressures to produce zones or areas of differing degrees of hardness in the same mattress, thereby adapting the same for the correction of postural irregularities and for inwill appear more fully hereinafter, it being understood that the said invention consists subctantially in the combination, construction, location and relative arrangement of parts, as described more fully hereinafter, as shown in the accompanying drawings and as finally pointed out in the appended claims.
  • n- Figure l is a perspective view of a pneumatic mattress constructed in accordance with and emyins the principles of the said invention
  • Figure 2 is a plan view showing in full line a single bed mattress and in dotted lines an additional section to make up a three-quarter size mattress;
  • Figure 3 is a longitudinal sectional view taken on the line 3-3 of Figure 1;'
  • Figure 4 is a partial sectional view or a pair adjoining cellular units as employed in the construction of Figure l; a
  • Figure 5 is a sectional view taken 55 of Figure 4.
  • Figure 6 is a perspective view of one form of cellular unit
  • Figure '7 is a perspective view showing in separated relation the component parts of a cellular unit: I
  • - Figure 8 is a detail rspective view of a preferred means for securing together adjacent cellular units of the mattress;
  • Figure 9 is a top plan view of an end cellular unit such as may be'employed in the construction of mattress shown in Figure 1'
  • Figure 10 is a top plan view of an end cellular unit such as may be employed in the construction o! the three-quarter size mattress shown in Figure 2;
  • Figures 11 and 12 are sectional views showing difierent means for securing the cellular units to a bottom posture board;
  • FIG. 13 is a perspective view of still another form of pneumatic-mattress constructed in accordance with and embodying the principles of the present invention.
  • Figure 14 is a partial perspective view of 9. flexible cellular compartment for receiving a plurale
  • the'inflatable cellular units thereof are constructed of a non-stretching but flexible sheet material which is impervious to the passage of air therethrough such Inaterlal preferably being a vinyl resin or other such plastic variously knownin the trade as "Vinylite.”
  • the mattress of the present invention is constructed of a plurality ofcellular units l each of generally rectangular shape and adapted to be assembled to form a single, three-quarter or double size mattress as desired.
  • Figure 1 illustrates the single size mattress
  • Figure 2 illustrates the manner of increasing the same to three-quarter or double size by the addition of one or more additional rows of units such as are shown in dotted lines.
  • Each of the cellular-units i0 is essentially composed of two principal parts, namely, a lower base member ll formed of rigid or semi-rigid plastic material of the character hereinbefore referred to, and an upper chamber-forming member i2 formed of a flexibl sheet of the same plastic material.
  • the base member ii of the cell is preferably molded into shape to provide it with a marginal upstanding flange l3 which is adapted to be perimetrally embraced by the lowerfree edge of the upper member, the overlapping portions of the members ii and 12 being eewhich includes a line of spaced lacing holes 26.
  • flap elements 25 are secured to the upper edge portions of the cells in any suitable manner, as by cementing or electronic heating and extend laterally of the cell to an extent suflicient to permit the flap elements of adjoinin merited or otherwise secured together to provide an air-tight Joint therebetween.
  • An effective airtight seal between the parts is obtained by subjecting the lapped parts to electronic heating and so effecting an integral bond therebetween, the vinyl resin or other such plastic of which the members ii and 12 are formed being adapted to such'bonding under the application of heat and pressure.
  • the base member ii Molded centrally in the base member ii is'an inverted cup-shaped element [4 to provide a recessed chamber disposed above the plane of the bottom surface of the base member, this chamber housing therein an air valve l5.
  • the air valve body is permanently set into the bottom wall of the recessas shown (see Figure 5) during the process of molding thebase member l2.
  • sockets In order to secure the cells together in'their assembledrelatiomthey may be supported upon a foundation or posture board H5, in which event the individual cells are provided in their base for reception of threaded bolts i8 projecting upwardly through the foundation or posture board It.
  • These sockets il may be variously formed as illustrated in Figures 11' and 12.
  • the socket' In the arrange ment of Figure 11, the socket'is in the form of a tubular metal insert i9 which is set into the base member ii of the cell during the molding thereof, the insertlfi-having an enlarged head 2i) embedded in the base member and an internally threaded shank 2i projecting outwardly of the base member for reception within an aperture 22 provided therefore in the posture board.
  • each pneumatic cell with a pair 0 such securing elements respectively I I either side of the cells to be disposed in overlapped relation, as
  • lacing cord 21, also formed of vinyl resin or the comers of the mattress are provided with flaps along only their two inner edges, as illustrated in . Figure 9, while the remaining. cells are each additionally provided with a flap such as that shown in broken line in said Figure 9, to provide a cell of the appearance shown in Figure 6.
  • the intermediate cells of the central row require lacing flaps on all four sides thereof (see Figure 7), while the endmost cells of said row require onlythree flaps as shown in Figure 10.
  • each cell may be provided with as many lacingflaps as are necessary depending upon the location of the cell with relation to others in the assembly, and that it is within the scope and spirit of the present invention to provide each cell with flaps along all marginal edgesthereof, as shown in Figure 'l,'so as to standardize their construction and permit their disposition at any point in the assembly. In such latter case, those flaps which are unnecessary to be used in lacing together the cellsmay beleft fre to fold over the outer edge of the cell, as shown in dotted lines in Figure 5.
  • Figures 13 to 17 inclusive are shown modificatiomsv of the constructions hereinbefore described without involving any, departure from the general principles of the present invention.
  • Figures 15 and 16 illustrate a cell construction of cylindrical rather than rectangular form, the cylindrical unit 38 being" constructed of twomain parts, to wit, the relatively rigid or semi-rigid base member 3! and the flexible upper member 32, the base member being provided with a pcripheral flange 33* which snugly fits within and thereof so as .to render it freely disposed above the bottom plane of the unit.
  • the cylindrical air cells 30 are adapted to be disposed within a flexible container 34 in the form of an open-topped box-like structure, this structure being divided into a plurality of separate compartments 86 by means of the longitudinally and transversely extending partition walls 31.
  • the structure 34 is formed of the vinyl resin or other such flexible plastic material, the depth of the compartments 36 being approximately equal to the overall depth of the air cell units disposed therein, these latter being retained in position against displacement by means of a top cover member 38 having a marginal flange 39 which embraces and is adapted to be cemented or otherwise united or bonded to the marginal side walls of the compartmentedsupporting structure for the air cells.
  • Figure 13 illustrates a construction of mattress intended for single bed design
  • Figure 17 illustrates a larger construction, as for a three-quarter or double size bed.
  • a pneumatic mattress or the like comprising a plurality of inflatable cells each formed of a flexible hollow body and a relatively rigid base member fitted in and secured to one end of the hollow body to provide a closed air chamber,
  • a pneumatic mattress or the like comprising a plurality of inflatable cells each formed of a flexible hollow body and a relatively rigid base member fitted in and secured to one end of the hollow body to provide a closed air chamber, valve means in said base member of each cell for inflating the same, a rigid support underlying a group of said cells arranged in a plurality of 2 rows of several cells each, and means in the base members of said cells for individually anchoring the same to said support.

Description

Feb. 4, 1947. M. R. STEIN 2,415,150
PNEUMATIC MATTRESS Filed June 8, 1945 3 Sheets-Sheet 1 INVENTOT- manna. RUSSELL swam M'fwney \iiil.
Feb. 4, 1947. M. R. STEIN 2,4l,150
PNEUMATIC MATTRESS Filed June a, 1945 SSheets-Sheet 2 16 INVENTOR. I
,"KIRAEL RUSSELL STE-N KW eb. 4, 1947. M, R, STEIN 2,415,150
PNEUIIATIO IA'ITRESS Filed June a, 1945 a Sheets-Sheet BY MICHAEL RUSSELLSTEJN A'H-orne Patented Feb. 4, 1947 UNITED STATES PATENT OFFICE PNEUMATIC mmass Michael Russell Stein, New York, N. Y.
Application June a, 1945, Serial No. 598,259
1 3 Claims.
This invention relates generally to pneumatic upholstery such as mattresses, cushions and the like and more particularly to the construction of an inflatable cellular core adapted to serve the foundation for such upholstery.
Among the principal objects of the present invention is to provide aresilient and comfortable construction of pneumatic mattress and the like which is characterized by the fact that it is made up of a number of individual cellular unitsadapted to be conveniently assembled to provide a mattress or cushion of any desired size and shape.
A further object is to construct the pneumatic cells out of a sheet material formed oi! a vinyl resin or other such plastic which, while suinciently pliable for its intended, purpose, is not so stretchable as to require the use or excessive air pressures tomaintain the cells against collapse under the weight of the person resting on the mattress. Further, inasmuch as such material is immune to fluids, .is resistant to fungi, mold and acid and is not subject to rot at high temperatures, the mattress of the present invention when constructed of such plastic material is ideally suitable for use in hospitals and infant cribs as well as in tropical countries.
Still another object of the invention is to provide a cellular construction 01 mattress and the like wherein the various cells thereof may be filled with air at different pressures to produce zones or areas of differing degrees of hardness in the same mattress, thereby adapting the same for the correction of postural irregularities and for inwill appear more fully hereinafter, it being understood that the said invention consists subctantially in the combination, construction, location and relative arrangement of parts, as described more fully hereinafter, as shown in the accompanying drawings and as finally pointed out in the appended claims.
In the accompanying drawings, which illustrate certain preferred embodiments of the present inventi n- Figure l is a perspective view of a pneumatic mattress constructed in accordance with and emyins the principles of the said invention;
Figure 2 is a plan view showing in full line a single bed mattress and in dotted lines an additional section to make up a three-quarter size mattress;
Figure 3 is a longitudinal sectional view taken on the line 3-3 of Figure 1;'
Figure 4 is a partial sectional view or a pair adjoining cellular units as employed in the construction of Figure l; a
Figure 5 is a sectional view taken 55 of Figure 4;
Figure 6 is a perspective view of one form of cellular unit;
Figure '7 is a perspective view showing in separated relation the component parts of a cellular unit: I
-Figure 8 is a detail rspective view of a preferred means for securing together adjacent cellular units of the mattress;
Figure 9 is a top plan view of an end cellular unit such as may be'employed in the construction of mattress shown in Figure 1' Figure 10 is a top plan view of an end cellular unit such as may be employed in the construction o! the three-quarter size mattress shown in Figure 2;
Figures 11 and 12 are sectional views showing difierent means for securing the cellular units to a bottom posture board;
on the line Figure 13 is a perspective view of still another form of pneumatic-mattress constructed in accordance with and embodying the principles of the present invention;
Figure 14 is a partial perspective view of 9. flexible cellular compartment for receiving a plurale In the construction of the pneumatic mattress of the present invention, the'inflatable cellular units thereof are constructed of a non-stretching but flexible sheet material which is impervious to the passage of air therethroughsuch Inaterlal preferably being a vinyl resin or other such plastic variously knownin the trade as "Vinylite."
' single bed size of mattress.
. -3 Referring now to the drawings and more particularly to Figures 1 to 13 thereof, it will be observed that in one preferred construction of the mattress of the present invention, it is constructed of a plurality ofcellular units l each of generally rectangular shape and adapted to be assembled to form a single, three-quarter or double size mattress as desired. Figure 1 illustrates the single size mattress, while Figure 2 illustrates the manner of increasing the same to three-quarter or double size by the addition of one or more additional rows of units such as are shown in dotted lines.
Each of the cellular-units i0 is essentially composed of two principal parts, namely, a lower base member ll formed of rigid or semi-rigid plastic material of the character hereinbefore referred to, and an upper chamber-forming member i2 formed of a flexibl sheet of the same plastic material. The base member ii of the cell is preferably molded into shape to provide it with a marginal upstanding flange l3 which is adapted to be perimetrally embraced by the lowerfree edge of the upper member, the overlapping portions of the members ii and 12 being eewhich includes a line of spaced lacing holes 26.
These flap elements 25 are secured to the upper edge portions of the cells in any suitable manner, as by cementing or electronic heating and extend laterally of the cell to an extent suflicient to permit the flap elements of adjoinin merited or otherwise secured together to provide an air-tight Joint therebetween. An effective airtight seal between the parts is obtained by subjecting the lapped parts to electronic heating and so effecting an integral bond therebetween, the vinyl resin or other such plastic of which the members ii and 12 are formed being adapted to such'bonding under the application of heat and pressure.
Molded centrally in the base member ii is'an inverted cup-shaped element [4 to provide a recessed chamber disposed above the plane of the bottom surface of the base member, this chamber housing therein an air valve l5. Preferably, the air valve body is permanently set into the bottom wall of the recessas shown (see Figure 5) during the process of molding thebase member l2.
As many of the pneumatic cells i2 are assembled together as are necessary to form the desired shape and size of the mattress. Thus, as shown in Figure l, sixteen-of such cells are as sembled in two rows of eight each to produce a By adding an additional row, as represented by the dotted lines of Figure 2, a larger size mattress may be obtained.
- In order to secure the cells together in'their assembledrelatiomthey may be supported upon a foundation or posture board H5, in which event the individual cells are provided in their base for reception of threaded bolts i8 projecting upwardly through the foundation or posture board It. These sockets il may be variously formed as illustrated in Figures 11' and 12. In the arrange ment of Figure 11, the socket'is in the form of a tubular metal insert i9 which is set into the base member ii of the cell during the molding thereof, the insertlfi-having an enlarged head 2i) embedded in the base member and an internally threaded shank 2i projecting outwardly of the base member for reception within an aperture 22 provided therefore in the posture board.
members It with internally threaded sockets il In the arrangement as illustrated in Figure 12,
the internally threaded shank 23 which projects outwardly of the base member ii of the cell is formed as an integral part of said base member; In either case, it is preferable to provide each pneumatic cell with a pair 0 such securing elements respectively I I either side of the cells to be disposed in overlapped relation, as
shown in Figure 8, with the lacing holes of the overlapped flaps in registry with each other. A
lacing cord 21, also formed of vinyl resin or the comers of the mattress are provided with flaps along only their two inner edges, as illustrated in .Figure 9, while the remaining. cells are each additionally provided with a flap such as that shown in broken line in said Figure 9, to provide a cell of the appearance shown in Figure 6. In the case of a three row assembly of the cells, as in Figure 2, the intermediate cells of the central row require lacing flaps on all four sides thereof (see Figure 7), while the endmost cells of said row require onlythree flaps as shown in Figure 10.
It will be understood, therefore, that the individual cells may be provided with as many lacingflaps as are necessary depending upon the location of the cell with relation to others in the assembly, and that it is within the scope and spirit of the present invention to provide each cell with flaps along all marginal edgesthereof, as shown in Figure 'l,'so as to standardize their construction and permit their disposition at any point in the assembly. In such latter case, those flaps which are unnecessary to be used in lacing together the cellsmay beleft fre to fold over the outer edge of the cell, as shown in dotted lines in Figure 5. v
In Figures 13 to 17 inclusive are shown modificatiomsv of the constructions hereinbefore described without involving any, departure from the general principles of the present invention. Thus, Figures 15 and 16 illustrate a cell construction of cylindrical rather than rectangular form, the cylindrical unit 38 being" constructed of twomain parts, to wit, the relatively rigid or semi-rigid base member 3! and the flexible upper member 32, the base member being provided with a pcripheral flange 33* which snugly fits within and thereof so as .to render it freely disposed above the bottom plane of the unit.
The cylindrical air cells 30 are adapted to be disposed within a flexible container 34 in the form of an open-topped box-like structure, this structure being divided into a plurality of separate compartments 86 by means of the longitudinally and transversely extending partition walls 31. The structure 34 is formed of the vinyl resin or other such flexible plastic material, the depth of the compartments 36 being approximately equal to the overall depth of the air cell units disposed therein, these latter being retained in position against displacement by means of a top cover member 38 having a marginal flange 39 which embraces and is adapted to be cemented or otherwise united or bonded to the marginal side walls of the compartmentedsupporting structure for the air cells. Inasmuch as the members 34 and 38 are formed of flexible material, it will be apparent that the construction of mattress as shown in Figures 13 and .17 will provide an exceedingly comfortable cushioned support for the body of a person resting thereon. By varying the air pressure in the several cells of the mattress so constructed, localized areas of varying degrees of hardness may be obtained to secure the maximum degree of comfort and correct support for the recliner. Figure 13 illustrates a construction of mattress intended for single bed design, while Figure 17 illustrates a larger construction, as for a three-quarter or double size bed.
It will be understood, of course, that the present invention is susceptible of various changes and modifications which may be made from time to time without departing from the real spirit or general principles thereof, and it is accordingly intended to claim the same broadly,- as well as specifically, as indicated in the appended claims.
What is claimed as new and useful is:
l. A pneumatic mattress or the like comprising a plurality of inflatable cells each formed of a flexible hollow body and a relatively rigid base member fitted in and secured to one end of the hollow body to provide a closed air chamber,
valve means in said base member for inflating the cell and means for detachably securing together a group of said cells arranged in a plurality of rows of several cells each. i
2. A pneumatic mattress of the character defined in claim 1 wherein said cells are respectively provided with perforated flap elements extending along the top edges thereof, and wherein overlapping flap elements of contiguous cells are secured'together by an interlacing cord threaded through the registering apertures of said overlapping flap elements.
3. A pneumatic mattress or the like comprising a plurality of inflatable cells each formed of a flexible hollow body and a relatively rigid base member fitted in and secured to one end of the hollow body to provide a closed air chamber, valve means in said base member of each cell for inflating the same, a rigid support underlying a group of said cells arranged in a plurality of 2 rows of several cells each, and means in the base members of said cells for individually anchoring the same to said support.
- MICHAEL RUSSELL STEIN.
REFERENCES CITED The following references .are of record in theflle of this patent:
UNITED STATES PATENTS
US598259A 1945-06-08 1945-06-08 Pneumatic mattress Expired - Lifetime US2415150A (en)

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Cited By (52)

* Cited by examiner, † Cited by third party
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US2491557A (en) * 1946-03-12 1949-12-20 Gordon L Goolsbee Multiple air cell mattress
US2495124A (en) * 1947-06-24 1950-01-17 Morner Hans George Upholstery unit
US2533971A (en) * 1947-04-30 1950-12-12 Int Latex Corp Crib or the like sheet
US2542781A (en) * 1947-02-14 1951-02-20 John H Sawyer Inflatable mattress unit
US2548547A (en) * 1948-04-30 1951-04-10 Robert L Melrose Sectional pad
US2614272A (en) * 1947-04-15 1952-10-21 Morner Hans George Upholstery unit
US2693847A (en) * 1952-04-14 1954-11-09 Kablotsky Abraham Segmented cushion for furniture
US2731652A (en) * 1951-06-01 1956-01-24 Edward P Bishop Air mattress
US2823394A (en) * 1955-07-08 1958-02-18 Aubrey L Smith Combination pneumatic and padded mattress
US2867346A (en) * 1954-10-06 1959-01-06 British Petroleum Co Floating plastic screen
US2897520A (en) * 1958-02-04 1959-08-04 Wylie B Bradford Resilient support assembly
US3274624A (en) * 1964-04-28 1966-09-27 Claude J Noerdinger Inflatable air mattress
US3390802A (en) * 1965-01-15 1968-07-02 Gereb Eliezer Method and equipment for reducing water evaporation
US4163297A (en) * 1976-07-06 1979-08-07 Beaufort Air Sea Equipment Limited Mattress
WO1982003319A1 (en) * 1981-03-30 1982-10-14 Jan Dranger Body-supporting device and method for forming such a device
US4467484A (en) * 1981-02-19 1984-08-28 Nissan Motor Company, Limited Pneumatic cushion and manufacturing method therefor
US4542547A (en) * 1982-12-15 1985-09-24 Hiroshi Muroi Pnuematic mat with sensing means
US4644597A (en) * 1983-05-09 1987-02-24 Dynatech, Inc. Air mattress with pressure relief valve
US4766628A (en) * 1986-01-21 1988-08-30 Walker Robert A Air mattress with filler check valve and cap therefor
US4788729A (en) * 1985-04-14 1988-12-06 Walker Robert A Air mattress with audible pressure relief valve
US4868941A (en) * 1988-10-26 1989-09-26 Tai Hsin Fen Assembled mattress having bellows for jacketing spring therein
US4908895A (en) * 1989-03-20 1990-03-20 Walker Robert A Air mattress
WO1991006235A1 (en) * 1989-10-26 1991-05-16 Tooling Promotion Ab Mattress, cushion, and the like
US5070559A (en) * 1991-01-08 1991-12-10 New Era Marketing, Ltd. Adjustable spinal support
US5267363A (en) * 1989-07-25 1993-12-07 Chaffee Robert B Pneumatic support system
US5323500A (en) * 1988-03-23 1994-06-28 American Life Support Technology Cushions for a bed
US5581828A (en) * 1994-09-19 1996-12-10 Price Manufacturing, Inc. Air flotation insert for wooden waterbed frame
US5606754A (en) * 1989-03-09 1997-03-04 Ssi Medical Services, Inc. Vibratory patient support system
US5689845A (en) * 1996-04-17 1997-11-25 Roho, Inc. Expansible air cell cushion
US5983429A (en) * 1994-02-15 1999-11-16 Stacy; Richard B. Method and apparatus for supporting and for supplying therapy to a patient
US20020184710A1 (en) * 2001-03-30 2002-12-12 Chaffee Robert B. Membrane deflation in combination with rigid surfaces
US20030028971A1 (en) * 2001-07-10 2003-02-13 Chaffee Robert B. Configurable inflatable support devices
US20030192123A1 (en) * 2002-04-11 2003-10-16 Chaffee Robert B. Body support surface comfort device
US20030200611A1 (en) * 2002-04-25 2003-10-30 Chaffee Robert B Fluidic chambers fluidly connected by one way valve and method for use
US6701559B2 (en) 2001-08-01 2004-03-09 Aero Products International, Inc. Increased height inflatable support system
US20040074004A1 (en) * 2002-04-08 2004-04-22 Boso Karen L Inflatable support system
US20050166326A1 (en) * 2002-04-11 2005-08-04 Chaffee Robert B. Body support, comfort device
US20050204475A1 (en) * 2004-03-16 2005-09-22 Select Comfort Corporation Sleeping surface having two longitudinally connected bladders
US20060191538A1 (en) * 2001-10-22 2006-08-31 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US20070033739A1 (en) * 2005-08-12 2007-02-15 Austen Timothy F Inflatable support system having thermoplastic polyurethane construction
US20070056114A1 (en) * 2005-09-09 2007-03-15 Corey Lewison Multi-zone coil construction airbed
US20070169274A1 (en) * 2001-08-01 2007-07-26 Boso Karen L Inflatable reinforcing chamber
US20070277325A1 (en) * 2004-03-16 2007-12-06 Select Comfort Corporation Sleeping surface having two longitudinally connected bladders with a support member
US20080078023A1 (en) * 2006-10-02 2008-04-03 The Coleman Company, Inc. Variable size airbed
US7415741B1 (en) * 2006-01-12 2008-08-26 Imp Inc. Surgical patient positioner extension unit
US20090056008A1 (en) * 2006-04-07 2009-03-05 Rosene Richard C Floating spa cover or adjustable size
WO2010039255A2 (en) 2008-10-03 2010-04-08 Hlz Innovation, Llc Adjustable pneumatic supporting surface
US20110047703A1 (en) * 2009-08-31 2011-03-03 Jean-Francois Tarsaud Lateral tilt device
US8826478B2 (en) 2000-05-17 2014-09-09 Robert B. Chaffee Inflatable device forming mattresses and cushions
US9279430B2 (en) 2000-05-17 2016-03-08 Robert B. Chaffee Pump with axial conduit
US9279510B2 (en) 2000-05-17 2016-03-08 Robert B. Chaffee Valve with electromechanical device for actuating the valve
US10993863B2 (en) * 2017-09-27 2021-05-04 Cega Innovations, Inc. Transfer apparatus

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US945234A (en) * 1908-12-12 1910-01-04 Hinsdale Pneumatic Cushion And Mattress Company Pneumatic mattress.
US1296359A (en) * 1915-03-01 1919-03-04 Daniel Webster Brown Pneumatic mat.
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US1475771A (en) * 1922-11-20 1923-11-27 Ernest W Aldridge Mattress
US1772310A (en) * 1926-12-16 1930-08-05 Julian D Hart Variable-pressure bed or mattress
US2247667A (en) * 1941-01-24 1941-07-01 Rosberger Max Mattress

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US716752A (en) * 1902-01-09 1902-12-23 Lucy B Phillips Air-cushion.
US802526A (en) * 1905-01-28 1905-10-24 William M Russell Jr Pneumatic mattress and cushion.
US945234A (en) * 1908-12-12 1910-01-04 Hinsdale Pneumatic Cushion And Mattress Company Pneumatic mattress.
US1296359A (en) * 1915-03-01 1919-03-04 Daniel Webster Brown Pneumatic mat.
US1307825A (en) * 1918-09-11 1919-06-24 Harry B Marshall Surf-mattress.
US1475771A (en) * 1922-11-20 1923-11-27 Ernest W Aldridge Mattress
US1772310A (en) * 1926-12-16 1930-08-05 Julian D Hart Variable-pressure bed or mattress
US2247667A (en) * 1941-01-24 1941-07-01 Rosberger Max Mattress

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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