US3965486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic knee pad
Assignee: Individual
•
Filing: 1975-02-05
•
Granted: 1976-06-29
•
Expires: 1995-02-05
Abstract
Abstract A pneumatic knee pad which includes a main hollow inflatable flexible body portion divided into a first and a second chamber. Each of said chambers has mounted thereon and communicating internally therewith a multiplicity of flexible spaced hollow fingers disposed at right angles to the main body portion together with buckle-equipped straps connected to the main body portion for connecting the pad to a knee of a user.
Inventors
- 👤 Charles S. Lightbody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:55
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/055; A41D13/0556; A41D13/0568; A41D13/06; A41D13/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A pneumatic knee pad comprising: a. a main hollow body portion including spaced side walls connected to b. a front wall and c. a rear wall spaced from said front wall, d. a top wall connected to said side walls and said front and rear walls and e. a bottom wall connected to side walls and said front and rear walls, f. a central wall connected internally of said front and rear walls and said top and bottom walls dividing said hollow body into first and second chambers, g. a plurality of spaced hollow fingers extending at substantially right angles from and communicating with the first chamber, h. a plurality of hollow fingers extending at substantially right angles from and communicating with the second chamber, i. means for attaching the pad to the knee of a user, and j. means for inflating each of said first and second chambers with air which also inflates said communicating fingers, the air in the chambers is being forced into the fingers when the chamber is deformed to hold the knee joint parts together.
Claim 2
Dependent Claim
180 words
A pneumatic knee pad comprising: a. a main hollow body portion including spaced side walls connected to b. a front wall and c. a rear wall spaced from said front wall, d. a top wall connected to said side walls and said front and rear walls and e. a bottom wall connected to side walls and said front and rear walls, f. a central wall connected internally of said front and rear walls and said top and bottom walls dividing said hollow body into first and second chambers, g. a plurality of spaced hollow fingers extending at substantially right angles from and communicating with the first chamber, h. a plurality of hollow fingers extending at substantially right angles from and communicating with the second chamber, i. means for attaching the pad to the knee of a user, and j. means for inflating each of said first and second chambers with air which also inflates said communicating fingers, the air in the chambers is being forced into the fingers when the chamber is deformed to hold the knee joint parts together.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |