US4516568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure exerting device
Assignee: Individual
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Filing: 1983-07-22
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Granted: 1985-05-14
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Expires: 2003-07-22
Abstract
Abstract A pressure exerting device comprising a resilient wedge shaped member and modified U-shape air bladder which may be filled to selected air pressure exerts pressure to a pre-selected pressure in a uniform manner over selected lumbar and sacroiliac areas of the body.
Inventors
- 👤 Kern C. A. Baxter
- 👤 Heinz-Gert Grm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:10
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; A47C7/425; A61; A61F; A61F5/00; A61F5/01; A61F5/30; A61F5/34; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
177 words
A pressure exerting device conformable to the contour of a body to exert pressure to the surface of the body in a preselected pounds per square inch pressure in a uniform manner throughout a preselected area of the surface of the body, said device comprising, a wedge shaped member of resilient material having a continuous surface, a modified U-shaped air bladder on said continuous surface with the base of the U-shaped bladder at the thick end of the wedge shaped member and with the legs of the U-shaped bladder extending along the opposite edges of said surface from said thick end substantially to the thin end thereof, means securing said bladder to said continuous surface, and hand operative means connected to said bladder to fill said bladder with air to a selected pressure while the divice is in pressure exerting contact with a body, said bladder expanding outwardly from said continuous surface a distance greater than either of said legs of said U-shaped bladder, and means for generating heat over a major portion of said continuous surface.
Claim 2
Dependent Claim
177 words
A pressure exerting device conformable to the contour of a body to exert pressure to the surface of the body in a preselected pounds per square inch pressure in a uniform manner throughout a preselected area of the surface of the body, said device comprising, a wedge shaped member of resilient material having a continuous surface, a modified U-shaped air bladder on said continuous surface with the base of the U-shaped bladder at the thick end of the wedge shaped member and with the legs of the U-shaped bladder extending along the opposite edges of said surface from said thick end substantially to the thin end thereof, means securing said bladder to said continuous surface, and hand operative means connected to said bladder to fill said bladder with air to a selected pressure while the divice is in pressure exerting contact with a body, said bladder expanding outwardly from said continuous surface a distance greater than either of said legs of said U-shaped bladder, and means for generating heat over a major portion of said continuous surface.
Claim 3
Dependent Claim
209 words
A pressure exerting device conformable simultaneously to the left and right lumbar areas and the sacroiliac area of a body to exert pressure thereto in a preselected pounds per square inch pressure in a uniform manner throughout said preselected areas, said device comprising, a wedge shaped member of resilient material having a continuous surface, a modified U-shaped air bladder on said continuous surface with the base of the U-shaped bladder defining a sacroiliac bladder portion at the thick end of the wedge shaped member and with the legs of the U-shaped bladder defining left and right lumbar bladder portions respectively extending along the opposite edges of said surface from said thick end substantially to the thin end thereof, wherein said sacroiliac portion of said bladder expands outwardly from said continuous surface a distance greater than either of said lumbar portions of said bladder, means for providing heat to that portion of the said continuous surface between said lumbar portions of said bladder and between said sacroiliac portion of said bladder and said wedge shaped member, means for injecting and releasing air from said bladder while the device is in pressure exerting contact with the respective lumbar and sacroiliac areas and means for securing said bladder to said continuous surface.
Claim 4
Dependent Claim
209 words
A pressure exerting device conformable simultaneously to the left and right lumbar areas and the sacroiliac area of a body to exert pressure thereto in a preselected pounds per square inch pressure in a uniform manner throughout said preselected areas, said device comprising, a wedge shaped member of resilient material having a continuous surface, a modified U-shaped air bladder on said continuous surface with the base of the U-shaped bladder defining a sacroiliac bladder portion at the thick end of the wedge shaped member and with the legs of the U-shaped bladder defining left and right lumbar bladder portions respectively extending along the opposite edges of said surface from said thick end substantially to the thin end thereof, wherein said sacroiliac portion of said bladder expands outwardly from said continuous surface a distance greater than either of said lumbar portions of said bladder, means for providing heat to that portion of the said continuous surface between said lumbar portions of said bladder and between said sacroiliac portion of said bladder and said wedge shaped member, means for injecting and releasing air from said bladder while the device is in pressure exerting contact with the respective lumbar and sacroiliac areas and means for securing said bladder to said continuous surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |