US3982531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflation device for a pneumatic orthosis
Assignee: ATK Launch Systems LLC
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Filing: 1975-04-30
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Granted: 1976-09-28
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Expires: 1995-04-30
Abstract
Abstract A gas generating inflation device utilizing combustible propellant cartridges is provided for a pneumatic orthosis used by persons needing support of the legs or lower body and legs. Since most such persons use two canes for additional support while standing or walking, the inflation device is conveniently located in one of the canes, with the other cane used as a supply container for additional cartridges. The gas generator is loaded with a propellant cartridge and gas generation is initiated at the will of the orthosis wearer, the generated gas then flowing through filters in the cane in which the generator is located and thence into the pneumatic orthosis to inflate it.
Inventors
- 👤 Donald E. Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:38
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/012; A61H; A61H3/00; A61H3/008; A61H3/02; A61H2201/00; A61H2201/01; A61H2201/0103; A61H2201/12; A61H2201/1238; A61H2201/16; A61H2201/1602; A61H2201/1619; A61H2201/1621; A61H2201/1628; A61H2201/163; A61H2201/1635; A61H2201/164; A61H2201/1642; A61H2201/165; Y; Y10; Y10S; Y10S128/00; Y10S128/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
45 words
An inflatable orthosis system comprising, in combination, a cane, a gas generator in said cane, means for initiating the generation of gas by said generator, and conduit means communicably connected to the gas generator and to the inflatable orthosis to conduct the generated gas thereto.
Claim 2
Dependent Claim
45 words
An inflatable orthosis system comprising, in combination, a cane, a gas generator in said cane, means for initiating the generation of gas by said generator, and conduit means communicably connected to the gas generator and to the inflatable orthosis to conduct the generated gas thereto.
Claim 3
Dependent Claim
23 words
The invention set forth in claim 1 with a pressure regulator valve in the conduit means and communicably connected to said gas generator.
Claim 4
Dependent Claim
33 words
The invention set forth in claim 1 with a filter in the cane and interposed between the gas generator and inflatable orthosis and through which the gas passes before entering the inflatable orthosis.
Claim 5
Dependent Claim
34 words
The invention set forth in claim 3 with a neutralizer and a dessicant in the cane and interposed between the filter and pneumatic orthosis and through which the gas passes before entering the orthosis.
Claim 6
Dependent Claim
62 words
An inflatable orthosis system comprising, in combination, a cane, a combustion chamber in said cane, solid propellant in said combustion chamber, means associated with the propellant for igniting the propellant at the will of user to create gases under pressure in said combustion chamber, and conduit means communicably connected to the combustion chamber and to an inflatable orthosis to conduct gases thereto.
Claim 7
Dependent Claim
62 words
An inflatable orthosis system comprising, in combination, a cane, a combustion chamber in said cane, solid propellant in said combustion chamber, means associated with the propellant for igniting the propellant at the will of user to create gases under pressure in said combustion chamber, and conduit means communicably connected to the combustion chamber and to an inflatable orthosis to conduct gases thereto.
Claim 8
Dependent Claim
41 words
The invention set forth in claim 5 with the combustion chamber located at the lower end of the cane and with a combustion gas conduit extended upward through a hollow enclosed portion of the cane to form a water trap therein.
Claim 9
Dependent Claim
73 words
The invention set forth in claim 5 with the ignition means including a percussion cap in the cane exposed to the solid propellant and a triggered hammer for firing said percussion cap with the triggered hammer including means for initially cocking a spring-loaded hammer directed toward the cap, a lanyard adapted to release the triggered hammer upon a pull thereof, a handle on said cane and the lanyard extended thereto and operable therefrom.
Claim 10
Dependent Claim
28 words
The invention set forth in claim 5 with the ignition means including a hot wire energized from a battery located in the cane upon closure of a switch.
Claim 11
Dependent Claim
20 words
The invention set forth in claim 8 with the cane having a foot and the battery housed in the foot.
Claim 12
Dependent Claim
20 words
The invention set forth in claim 8 with the cane having a handle and the battery housed in the handle.
Claim 13
Dependent Claim
21 words
The invention set forth in claim 8 with the cane having a handle and the ignition switch located on said handle.
Claim 14
Dependent Claim
22 words
The invention set forth in claim 5 with the combustion chamber and propellant both housed in a cartridge removable from the cane.
Claim 15
Dependent Claim
14 words
The invention set forth in claim 12 with the filter included in the cartridge.
Claim 16
Dependent Claim
14 words
The invention set forth in claim 12 with the igniter included in the cartridge.
References Cited (Backward Citations)
US1598784A
Cited
GB388092A
Cited
US2699165A
Cited
FR1472902A
Cited
US3823712A
Cited
US3823711A
Cited
US3868952A
Cited
US3833029A
Cited
US3877882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |