CA1276958C - Controller for electric devices directed to use in bath - Google Patents
Controller for electric devices directed to use in bathInfo
- Publication number
- CA1276958C CA1276958C CA000545998A CA545998A CA1276958C CA 1276958 C CA1276958 C CA 1276958C CA 000545998 A CA000545998 A CA 000545998A CA 545998 A CA545998 A CA 545998A CA 1276958 C CA1276958 C CA 1276958C
- Authority
- CA
- Canada
- Prior art keywords
- controller
- movable
- magnetic body
- magnet
- switch means
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
Abstract
Abstract of the Disclosure Disclosed is a novel controller for electric devices directed to use in bath, comprising a moisture- and waterproof container that encloses the main part of an electric device; a magnet movably provided outside the container; a switch means provided inside the container, the switch means being operable by moving a movable piece; and a magnetic body equipped to the movable piece in correspondence with the moving route of the magnet.
Description
61-1~8372 ~ 8 CONTROLLER FOR ~LECTRIC DEVICES DIRECTED TO USE IN EATH
Back round of the Invention g ~ _ _ _ l. Field of the invention_ The present invention relates to a controller for electric devices directed to use in bath.
Back round of the Invention g ~ _ _ _ l. Field of the invention_ The present invention relates to a controller for electric devices directed to use in bath.
2. Description of the ~ior _ Electric devices such as low-frequency electrothera-peutic device must be protected from moisture and water when used while soaking in a bath tub. Although the r.lain part of an electric device can be protected by enclosing it in an appro-priate moisture- and water-proof container, the movable parts in the controller used for on/off and output controls, such as power switch and variable resistor, render perfect protection from water and moisture very difficult.
Summar~ of the Invention In view of the foregoing, one object of the present invention is to provide means wherein these drawbacks of conventional device are overcome, specifically, to provide a controller for electric devices directed to use in bath wherein the movable parts of the controller are perfectly protected from moisture and water by enclosing in a container the con-troller together with the main part of an electric device;
1~6958 arranging the switch in such manner that it can be operated by moving a movable piece; and equipping a magnetic body to said movable piece so that it can be moved in association with a magnet provided outside the container.
This and other objects as may become apparent herein-after have been attained with the controller for electric devices directed to use in bath, comprising a container that encloses the main part of an electric device; a magnet movably provided outside said container; a switch means provided inside said container, said switch means being operable by moving a movable piece; and a magnetic body equipped to said movable piece in correspondence with the moving route of said magnet.
Descri tion of the Preferred Embodiments P _ _ The present invention will hereinafter be explained with reference to the accompanying drawings, in which:
FIG.l is the side elevation view of the principal part of an embodiment according to the invention;
FIG.2 is the the side elevation view of a one-way switch according to the invention;
FIG.3 is the partial cutaway plane view of an embodi-ment wherein a plurality of switching means is arranged;
FIG.4 is the plane view of a variable resistor according to the invention;
FIG.5 is the side elevation view of the variable -` ~2~58 resistor;
FIG.6 is the electric circuit of the variable resis-tor;
FIG.7 is the plane view of an embodiment using sheet-type resistor; and FIG.8 is the plane view of a radial resistor switch.
FIG.l is to explain the basic mechanism of the invention. Reference numeral (1) designates the container with a superiorly moisture- and water-proof structure for housing the main part of an electric device. Reference numeral (2) designates a magnet movably provided outside container (1)~
Magnet (2) may be of a type wherein as is the case of a bar magnet the N and S poles are located at opposite halves and are not in the same plane; or of a type wherein the N and S poles are located on the same plane by U-shaping a magnet or prepar-ing it into a shape wherein N and S poles are placed at the cen~er or cylindrical outer wall around the center. The latter type is preferable because it provides a stronger attraction force. Reference numerals (3) and (4) designate fixed pieces provided inside container (1) to leave an appropriate vertical spacing therebetween and also to provide a switch means.
Reference numeral (5) designates a movable piece located between fixed pieces (3) and (4) so that it can contact with upper- and lower-fi~ed pieces (3) and (4) to switch them.
Reference numeral (6) designates a magnetic body, such as iron, provided at one end of movable piece (5), and magnetic body (6~
~:76~
can approach magnet (2) and elevate movable piece (5) to contact movable piece (5) with fixed piece (3) when magnet (2) comes over magnetic body (6). As magnet (2) departs from magnetic body (6), the attraction force weakens and movable piece (5) descends and comes into contact with lower fixed piece (4). The on/off operation between fixed pieces (3) and (4) and movable piece (5) can be utilized to switch power source, as well as to switch resistors, capacitors and bat-teries to control electric resistance, capacitance and voltage.
FIG.2 is illustrative of a one-way switch wherein lower fixed piece (4) is omitted.
FIG.3 is illustrative of an application of the invention, wherein a plurality of switching means as shown in FIG.l is arranged in such manner that they are successively switchable by moving magnet (2). For example, when magnet (2) comes over magnetic body (61) of movable piece (51) provided in the first switching means, magnetic piece (6l) approaches magnet (2) and elevates movable piece (51) to contact it with upper fixed piece (31). When this occurs, upper fixed plece (31) is turned on, while lower fixed piece (4) is turned off.
As magnet (2) comes over the next switching means, the attrac-tion force to magnetic body (61) weakens and movable piece (51) descends and contacts with lower fixed piece (41) to turn it on, as well as turning upper fixed piece (31) off. By util-izing this in a switch, power circuit can be turned on by moving magnet (2). Furthermore, by connecting resistors to ~;~71~S~
second upper fixed piece (32)~ third upper fixed piece (33) .... and fifth upper fixed piece (35), the resistors can be switched by moving magnet (2).
FIGs.4 and 5 are illustrative of switching resistors according to the invention, wherein a plurality of resistor Rl, R2 and R5 is connected respectively with a plurality of p e (51)' (52) and (55). Only upper fixed piece (3) is provided as the common fixed piece for movable pieces (51)' (52) and (55) by arranging it to the direction across the movable pieces. By moving magnet (2) successively over magnetic bodies (61), (62) .... and (65) provided at one end of respective movable pieces (51)' (52) and (55), magnetic bodies (61), (62) .... and (65) successively approach magnet (2) and bring movable pieces (51)' (52) and (55) into contact with fixed piece (3) to turn the circuit on. As magnet (2) departs from the movable pieces, the attraction force to magnetic pieces (61), (62) .... and (65) weakens to break the contact of the corresponding movable piece with fixed piece (3). FIG.6 represents the electric circuit. As magnet (2) comes into contact successively with movable pieces (51)~
(52) .... and ~55), resistors Rl, R2 .... and R5 are success-ively switched. In this way, a desired level of signal can be obtained by applying the signal between terminals (7) and (8), and controlling the electric resistance.
FIG.7 is illustrative of a variable resistor accord-ing to the invention, wherein movable pieces (51~' ~52) '' ~ 7~ S~
and (510) are arranged circularly around common fixed piece (3) similarly as in the previous embodiment, while fi~ed piece (3) per se is made of a sheet-type resistor. Reference numeral (9) designates a contact piece provided on respective movable piece (5) in such manner that it can contact with the sheet-type reslstor. Reference numeral (10) designates a rotary shaft for moving magnet (2). As magnet (2) moves, i.t successively attracts and elevates movable pieces (51)' (52) --- and (510) to bring them into contact with fixed piece (3). In this way, a controlled electric resistance can be obtained.
In the embodiment as shown in FIG.8, fixed pieces (31)' (32) .... and (36) are attached to the ends of radially-arranged movable piece (51)' (52) .... and (56)' while resis-tors Rl, R2 ~-- and R6 are connected between adjacent two fixed pieces. Thus, the electric resistance can- be controlled by moving magnet (2) to successively contact movable pieces (51)' (52) .... and (56) with fixed pieces (31)' (32) .... and (36) As described above, in the present invention the movable parts in the controller can be perfectly protected from moisture and water because the controller is enclosed in the container together with the main part of an electric device, and because the control switch is operable by moving a movable piece including a magnetic body which moves in association with a magnet provided outside the container. Thus, the controller can be advantageously used in electric devices directed to the ~Z7~95~il use while soaking in a bath tub such as low-frequency electro-therapeutic device.
Such low-frequency electrotherapeutic device is very effective in improving and treating blood circulation, muscular strength and haemorrhoids, as well as in relieving fatigue.
Having described specific embodiments of my bearing, it is believed obvious that modifications and variations of my invention are possible in light of the above teachings.
Summar~ of the Invention In view of the foregoing, one object of the present invention is to provide means wherein these drawbacks of conventional device are overcome, specifically, to provide a controller for electric devices directed to use in bath wherein the movable parts of the controller are perfectly protected from moisture and water by enclosing in a container the con-troller together with the main part of an electric device;
1~6958 arranging the switch in such manner that it can be operated by moving a movable piece; and equipping a magnetic body to said movable piece so that it can be moved in association with a magnet provided outside the container.
This and other objects as may become apparent herein-after have been attained with the controller for electric devices directed to use in bath, comprising a container that encloses the main part of an electric device; a magnet movably provided outside said container; a switch means provided inside said container, said switch means being operable by moving a movable piece; and a magnetic body equipped to said movable piece in correspondence with the moving route of said magnet.
Descri tion of the Preferred Embodiments P _ _ The present invention will hereinafter be explained with reference to the accompanying drawings, in which:
FIG.l is the side elevation view of the principal part of an embodiment according to the invention;
FIG.2 is the the side elevation view of a one-way switch according to the invention;
FIG.3 is the partial cutaway plane view of an embodi-ment wherein a plurality of switching means is arranged;
FIG.4 is the plane view of a variable resistor according to the invention;
FIG.5 is the side elevation view of the variable -` ~2~58 resistor;
FIG.6 is the electric circuit of the variable resis-tor;
FIG.7 is the plane view of an embodiment using sheet-type resistor; and FIG.8 is the plane view of a radial resistor switch.
FIG.l is to explain the basic mechanism of the invention. Reference numeral (1) designates the container with a superiorly moisture- and water-proof structure for housing the main part of an electric device. Reference numeral (2) designates a magnet movably provided outside container (1)~
Magnet (2) may be of a type wherein as is the case of a bar magnet the N and S poles are located at opposite halves and are not in the same plane; or of a type wherein the N and S poles are located on the same plane by U-shaping a magnet or prepar-ing it into a shape wherein N and S poles are placed at the cen~er or cylindrical outer wall around the center. The latter type is preferable because it provides a stronger attraction force. Reference numerals (3) and (4) designate fixed pieces provided inside container (1) to leave an appropriate vertical spacing therebetween and also to provide a switch means.
Reference numeral (5) designates a movable piece located between fixed pieces (3) and (4) so that it can contact with upper- and lower-fi~ed pieces (3) and (4) to switch them.
Reference numeral (6) designates a magnetic body, such as iron, provided at one end of movable piece (5), and magnetic body (6~
~:76~
can approach magnet (2) and elevate movable piece (5) to contact movable piece (5) with fixed piece (3) when magnet (2) comes over magnetic body (6). As magnet (2) departs from magnetic body (6), the attraction force weakens and movable piece (5) descends and comes into contact with lower fixed piece (4). The on/off operation between fixed pieces (3) and (4) and movable piece (5) can be utilized to switch power source, as well as to switch resistors, capacitors and bat-teries to control electric resistance, capacitance and voltage.
FIG.2 is illustrative of a one-way switch wherein lower fixed piece (4) is omitted.
FIG.3 is illustrative of an application of the invention, wherein a plurality of switching means as shown in FIG.l is arranged in such manner that they are successively switchable by moving magnet (2). For example, when magnet (2) comes over magnetic body (61) of movable piece (51) provided in the first switching means, magnetic piece (6l) approaches magnet (2) and elevates movable piece (51) to contact it with upper fixed piece (31). When this occurs, upper fixed plece (31) is turned on, while lower fixed piece (4) is turned off.
As magnet (2) comes over the next switching means, the attrac-tion force to magnetic body (61) weakens and movable piece (51) descends and contacts with lower fixed piece (41) to turn it on, as well as turning upper fixed piece (31) off. By util-izing this in a switch, power circuit can be turned on by moving magnet (2). Furthermore, by connecting resistors to ~;~71~S~
second upper fixed piece (32)~ third upper fixed piece (33) .... and fifth upper fixed piece (35), the resistors can be switched by moving magnet (2).
FIGs.4 and 5 are illustrative of switching resistors according to the invention, wherein a plurality of resistor Rl, R2 and R5 is connected respectively with a plurality of p e (51)' (52) and (55). Only upper fixed piece (3) is provided as the common fixed piece for movable pieces (51)' (52) and (55) by arranging it to the direction across the movable pieces. By moving magnet (2) successively over magnetic bodies (61), (62) .... and (65) provided at one end of respective movable pieces (51)' (52) and (55), magnetic bodies (61), (62) .... and (65) successively approach magnet (2) and bring movable pieces (51)' (52) and (55) into contact with fixed piece (3) to turn the circuit on. As magnet (2) departs from the movable pieces, the attraction force to magnetic pieces (61), (62) .... and (65) weakens to break the contact of the corresponding movable piece with fixed piece (3). FIG.6 represents the electric circuit. As magnet (2) comes into contact successively with movable pieces (51)~
(52) .... and ~55), resistors Rl, R2 .... and R5 are success-ively switched. In this way, a desired level of signal can be obtained by applying the signal between terminals (7) and (8), and controlling the electric resistance.
FIG.7 is illustrative of a variable resistor accord-ing to the invention, wherein movable pieces (51~' ~52) '' ~ 7~ S~
and (510) are arranged circularly around common fixed piece (3) similarly as in the previous embodiment, while fi~ed piece (3) per se is made of a sheet-type resistor. Reference numeral (9) designates a contact piece provided on respective movable piece (5) in such manner that it can contact with the sheet-type reslstor. Reference numeral (10) designates a rotary shaft for moving magnet (2). As magnet (2) moves, i.t successively attracts and elevates movable pieces (51)' (52) --- and (510) to bring them into contact with fixed piece (3). In this way, a controlled electric resistance can be obtained.
In the embodiment as shown in FIG.8, fixed pieces (31)' (32) .... and (36) are attached to the ends of radially-arranged movable piece (51)' (52) .... and (56)' while resis-tors Rl, R2 ~-- and R6 are connected between adjacent two fixed pieces. Thus, the electric resistance can- be controlled by moving magnet (2) to successively contact movable pieces (51)' (52) .... and (56) with fixed pieces (31)' (32) .... and (36) As described above, in the present invention the movable parts in the controller can be perfectly protected from moisture and water because the controller is enclosed in the container together with the main part of an electric device, and because the control switch is operable by moving a movable piece including a magnetic body which moves in association with a magnet provided outside the container. Thus, the controller can be advantageously used in electric devices directed to the ~Z7~95~il use while soaking in a bath tub such as low-frequency electro-therapeutic device.
Such low-frequency electrotherapeutic device is very effective in improving and treating blood circulation, muscular strength and haemorrhoids, as well as in relieving fatigue.
Having described specific embodiments of my bearing, it is believed obvious that modifications and variations of my invention are possible in light of the above teachings.
Claims (10)
1. A controller for electric devices directed to use in bath, comprising:
a container that encloses the main part of an electric device;
a magnet movably provided outside said con-tainer;
a switch means provided inside said container, said switch means being operable by moving a movable piece; and a magnetic body equipped to said movable piece in correspondence with the moving route of said magnet.
a container that encloses the main part of an electric device;
a magnet movably provided outside said con-tainer;
a switch means provided inside said container, said switch means being operable by moving a movable piece; and a magnetic body equipped to said movable piece in correspondence with the moving route of said magnet.
2. The controller of claim 1, wherein said switch means comprises:
fixed pieces provided in the container to leave an appropriate spacing therebetween; and a movable piece provided between said fixed pieces, said movable piece equipped with a magnetic body at its end.
fixed pieces provided in the container to leave an appropriate spacing therebetween; and a movable piece provided between said fixed pieces, said movable piece equipped with a magnetic body at its end.
3. The controller of claim 1, wherein said switch means comprises:
a plurality of movable piece having a magnetic body at its end, said movable pieces being arranged in parallel to leave an appropriate spacing; and a fixed piece provided over said movable pieces to the direction across them.
a plurality of movable piece having a magnetic body at its end, said movable pieces being arranged in parallel to leave an appropriate spacing; and a fixed piece provided over said movable pieces to the direction across them.
4. The controller of claim 1, wherein said switch means comprises:
a plurality of movable pieces having a magnetic body at its end, said movable pieces being arranged radially around a rotally shaft; and a fixed piece provided over said movable pieces circularly around the rotary shaft.
a plurality of movable pieces having a magnetic body at its end, said movable pieces being arranged radially around a rotally shaft; and a fixed piece provided over said movable pieces circularly around the rotary shaft.
5. The controller of claim 1, wherein said magnetic body is made of iron.
6. The controller of claim 19 wherein said magnet is of a type wherein the N and S poles are located on the same plane.
7. The controller of claim 1, wherein to said switch means is connected a member selected from the group consisting of resistor, capacitor, and battery.
8. The controller of claim 1, wherein said electric device is a low-frequency electrotherapeutic device.
9. The controller of claim 1, wherein said con-tainer is of a moisture- and water-proof structure.
10. A variable resistor for electric devices directed to use in bath, which comprises a plurality of resistors connected respectively with a plurality of movable pieces having a magnetic body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP138372/1986 | 1986-09-09 | ||
JP1986138372U JPS6343553U (en) | 1986-09-09 | 1986-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1276958C true CA1276958C (en) | 1990-11-27 |
Family
ID=15220393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000545998A Expired - Lifetime CA1276958C (en) | 1986-09-09 | 1987-09-02 | Controller for electric devices directed to use in bath |
Country Status (6)
Country | Link |
---|---|
US (1) | US4812804A (en) |
EP (1) | EP0260091A3 (en) |
JP (1) | JPS6343553U (en) |
KR (1) | KR880003643A (en) |
BR (1) | BR8704663A (en) |
CA (1) | CA1276958C (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3711484A1 (en) * | 1987-04-04 | 1988-10-20 | Braun Ag | ACTUATING DEVICE FOR AN ELECTRICAL DEVICE |
US4987400A (en) * | 1989-08-11 | 1991-01-22 | Rochester Gauges, Inc. | Magnetically driven variable resistor gauge |
DE4023244A1 (en) * | 1990-07-21 | 1992-01-30 | Fliesenhof Bookhorn Inh Ralf P | SWITCHING DEVICE ON FACILITIES, IN PARTICULAR BATH OR WHIRLPOOL TUBS ETC. |
US5501102A (en) * | 1993-11-24 | 1996-03-26 | Rochester Gauges, Inc. | Floatless gauge with resistive/conductive polymer |
US5907273A (en) * | 1993-11-24 | 1999-05-25 | Rochester Gauges, Inc. | Linear positioning indicator |
DE19526254C2 (en) * | 1995-07-19 | 1998-01-29 | Mannesmann Vdo Ag | Passive magnetic position sensor |
ATE254799T1 (en) * | 1996-03-20 | 2003-12-15 | Ego Elektro Geraetebau Gmbh | ARRANGEMENT FOR CONTROLLING ELECTRICAL CONTROLLABLE DEVICES |
DE19859105A1 (en) * | 1998-12-21 | 2000-06-29 | Ego Elektro Geraetebau Gmbh | Arrangement for controlling electrically controllable devices, in particular electric cooking devices |
DE10212954A1 (en) * | 2002-03-19 | 2003-10-02 | Ego Elektro Geraetebau Gmbh | Control device for an electrical device |
DE10212929A1 (en) * | 2002-03-19 | 2003-10-02 | Ego Elektro Geraetebau Gmbh | Control device for an electrical device |
JP4197975B2 (en) * | 2003-02-27 | 2008-12-17 | オリンパス株式会社 | Medical device operation mechanism |
US7921873B2 (en) | 2004-01-22 | 2011-04-12 | Rochester Gauges, Inc. | Service valve assembly having a stop-fill device and a liquid level indicating dial |
US7726334B2 (en) | 2004-01-22 | 2010-06-01 | Rochester Gauges, Inc. | Service valve assembly having a stop-fill device and remote liquid level indicator |
US7293578B2 (en) | 2004-01-22 | 2007-11-13 | Rochester Gauges, Inc. | Gauge assembly having a stop fill device |
DE102005018275A1 (en) * | 2005-04-14 | 2006-10-19 | E.G.O. Elektro-Gerätebau GmbH | operating device |
EP2059701A2 (en) * | 2006-08-18 | 2009-05-20 | Rochester Gauges, Inc. | Service valve assembly having a stop-fill device and remote liquid level indicator |
DE102007016075A1 (en) | 2007-04-03 | 2008-10-09 | BSH Bosch und Siemens Hausgeräte GmbH | Electric appliance with reduced standby consumption |
US7889187B2 (en) * | 2007-04-20 | 2011-02-15 | Kohler Co. | User interface for controlling a bathroom plumbing fixture |
DE102007027445B4 (en) * | 2007-06-14 | 2018-11-22 | BSH Hausgeräte GmbH | Electric appliance with mechanical supply voltage switch |
US7690323B2 (en) * | 2007-10-31 | 2010-04-06 | Rochester Gauges, Inc. | Gauge head assembly with non-magnetic insert |
DE102009048494A1 (en) * | 2009-09-25 | 2011-04-07 | E.G.O. Elektro-Gerätebau GmbH | Method and device for operating an electrical appliance |
KR200491031Y1 (en) * | 2018-06-27 | 2020-02-07 | 김종열 | Low frequency massage device |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456261A (en) * | 1946-08-13 | 1948-12-14 | G M Giannini & Co Inc | Low torque toroidal resistor |
US2537733A (en) * | 1950-05-01 | 1951-01-09 | Adolph Cohn | Variable resistor |
US2917721A (en) * | 1958-01-16 | 1959-12-15 | Chicago Telephone Supply Corp | Hermetically sealed variable resistor |
US2862088A (en) * | 1958-02-11 | 1958-11-25 | Acton Lab Inc | Hermetically sealed variable resistors and potentiometers |
US3184697A (en) * | 1962-08-28 | 1965-05-18 | Samarius Inc | Hermetically sealed potentiometers |
CH417730A (en) * | 1964-07-06 | 1966-07-31 | Hasler Ag | Switch with permanent magnet and protective tube contact |
GB1161337A (en) * | 1966-11-09 | 1969-08-13 | Thorn Electronics Ltd | Variable Resistance Apparatus |
GB1214312A (en) * | 1967-06-09 | 1970-12-02 | Gilbarco Ltd | Improvements in electric switches |
US3569894A (en) * | 1969-04-14 | 1971-03-09 | Medtronic Inc | Magnetically coupled implantable servomechanism |
BE756846A (en) * | 1969-10-01 | 1971-03-01 | Electra Midland Corp | MINIATURE POTENTIOMETER |
US3757133A (en) * | 1970-10-12 | 1973-09-04 | Toyota Motor Co Ltd | Control for automatic transmission |
GB1347761A (en) * | 1971-03-05 | 1974-02-27 | Davey D M | Potentiometers |
US3863194A (en) * | 1973-11-26 | 1975-01-28 | Amp Inc | Hermetically sealed adjustment for high voltage potentiometer |
CA1080671A (en) * | 1975-08-13 | 1980-07-01 | Gilbert A. Neubauer | Label roll, method of making a label roll and method of dispensing labels |
US4249537A (en) * | 1979-05-18 | 1981-02-10 | Chaconas Charles G | Current controlled muscle stimulator |
-
1986
- 1986-09-09 JP JP1986138372U patent/JPS6343553U/ja active Pending
-
1987
- 1987-09-01 US US07/092,403 patent/US4812804A/en not_active Expired - Fee Related
- 1987-09-02 CA CA000545998A patent/CA1276958C/en not_active Expired - Lifetime
- 1987-09-07 KR KR870009880A patent/KR880003643A/en not_active Application Discontinuation
- 1987-09-07 EP EP87307887A patent/EP0260091A3/en not_active Withdrawn
- 1987-09-08 BR BR8704663A patent/BR8704663A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR8704663A (en) | 1988-04-26 |
EP0260091A3 (en) | 1989-07-26 |
EP0260091A2 (en) | 1988-03-16 |
US4812804A (en) | 1989-03-14 |
JPS6343553U (en) | 1988-03-23 |
KR880003643A (en) | 1988-05-28 |
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Legal Events
Date | Code | Title | Description |
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MKLA | Lapsed |