Patent US3831941A successfully refreshed from Google Patents.
US3831941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective shock absorbing device for goalposts
Assignee: Individual
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Filing: 1973-03-05
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Granted: 1974-08-27
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Expires: 1993-03-05
Abstract
Abstract This device is particularly adapted for use with goalposts of the type utilized in active sports and serves to protect the players when they collide with the posts. The device includes an inflatable inner tube which is formed with an opening along one side so that it may be easily removed from and placed in position surrounding the goalpost. A protective outer shell surrounds the inflatable inner tube and is provided with an opening along one side having suitable fastening means to secure the shell in position around the inner tube. The amount of air pressure in the inner tube can be varied to thereby vary the cushioning characteristic when a player collides with the shock absorbing device.
Inventors
- 👤 J Pease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:49
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/14; E01F15/141; A; A63; A63B; A63B71/00; A63B71/0054; A63C; A63C19/00; A63B2071/0063; A63B2225/00; A63B2225/62; A63B63/00; A63B63/004
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
274 words
Shock absorbing device for a post comprising a. an inflatable inner tube including flexible inner and outer walls, said inner wall extending longitudinally of said post and being of a sufficient width to closely encircle said post, said inner wall being of a sufficient length to extend between upper and lower ends of said shock absorbing device, said outer wall being of the same length as said inner wall and of a sufficient width to be equally spaced from said inner wall when said tube is inflated, a pair of end walls being positioned at the upper and lower ends of said shock absorbing device and being connected to and forming closures at opposed ends of said inner and outer walls, and a pair of side walls being connected to and extending radially from said inner wall to said outer wall, and said pair of side walls being connected to and extending from one of said end walls to the other whereby said inner tube may be removed from and placed in position to surround said post, said inner and outer walls and said pair of end walls defining a single cavity of uniform size surrounding said post, b. a protective outer shell surrounding and covering said outer wall of said inflatable inner tube and having a longitudinally extending opening defined by adjacent side edges of said outer shell, c. closure means extending along said side edges of said outer shell for releasably connecting together said side edges of said outer shell, and d. valve means connected to said inner tube for effecting inflation and deflation of said inner tube when surrounding said post.
Claim 2
Dependent Claim
274 words
Shock absorbing device for a post comprising a. an inflatable inner tube including flexible inner and outer walls, said inner wall extending longitudinally of said post and being of a sufficient width to closely encircle said post, said inner wall being of a sufficient length to extend between upper and lower ends of said shock absorbing device, said outer wall being of the same length as said inner wall and of a sufficient width to be equally spaced from said inner wall when said tube is inflated, a pair of end walls being positioned at the upper and lower ends of said shock absorbing device and being connected to and forming closures at opposed ends of said inner and outer walls, and a pair of side walls being connected to and extending radially from said inner wall to said outer wall, and said pair of side walls being connected to and extending from one of said end walls to the other whereby said inner tube may be removed from and placed in position to surround said post, said inner and outer walls and said pair of end walls defining a single cavity of uniform size surrounding said post, b. a protective outer shell surrounding and covering said outer wall of said inflatable inner tube and having a longitudinally extending opening defined by adjacent side edges of said outer shell, c. closure means extending along said side edges of said outer shell for releasably connecting together said side edges of said outer shell, and d. valve means connected to said inner tube for effecting inflation and deflation of said inner tube when surrounding said post.
Claim 3
Dependent Claim
52 words
A shock absorbing device according to claim 1 including means securing portions of said outer wall adjacent the juncture with said side walls to portions of said outer shell adjacent said side edges whereby said inner tube and said shell maintain their relative positions when wrapped around and removed from said post.
Claim 4
Dependent Claim
64 words
A shock absorbing device according to claim 1 including protective end walls connected to each end of said protective outer shell and extending inwardly toward said inner wall of said inner tube, a radially extending slit in each of said protective end walls and being aligned with the longitudinally extending opening in said outer shell to permit placement on and removal from said post.
Claim 5
Dependent Claim
29 words
A shock absorbing device according to claim 3 wherein said valve means comprises a valve stem secured in one end wall of said end wall of said inner tube.
Claim 6
Dependent Claim
23 words
A shock absorbing device according to claim 3 wherein said closure means also extends along the radial slits in said protectivE end walls.
Claim 7
Dependent Claim
24 words
A shock absorbing device according to claim 1 wherein said closure means comprises a zipper connected along said side edges of said outer shell.
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |