Patent US3578324A successfully refreshed from Google Patents.
US3578324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Football blocking apparatus
Assignee: Individual
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Filing: 1968-12-02
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Granted: 1971-05-11
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Expires: 1988-12-02
Abstract
Abstract An athletic practice apparatus having particular adaptability for the game of football characterized by the movement of a blocking structure from a first position to a second position by reason of body contact, and when at such second position, a thrust member is released to move the blocking structure in the direction of the first position.
Inventors
- 👤 George H Alvey
- 👤 Paul E Mcdaniels
- 👤 Roy T Pease Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:09
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
An athletic practice apparatus comprising a framework, a blocking pad slidably mounted on said framework for forward movement toward and rearward movement away from a player, spring means biasing said blocking pad in said forward direction towards said player, a thrust member mounted rearwardly of said blocking pad for movement in said forward direction, means applying a constant force biasing said thrust member in said forward direction, means locking said thrust member in a rearward position spaced from said blocking pad, and means responsive to a predetermined rearward movement of said blocking pad to release said locking means whereby said thrust member will be moved by its biasing force forwardly to impart a forward force to said blocking pad in addition to the forward biasing force of said spring means.
Claim 2
Dependent Claim
130 words
An athletic practice apparatus comprising a framework, a blocking pad slidably mounted on said framework for forward movement toward and rearward movement away from a player, spring means biasing said blocking pad in said forward direction towards said player, a thrust member mounted rearwardly of said blocking pad for movement in said forward direction, means applying a constant force biasing said thrust member in said forward direction, means locking said thrust member in a rearward position spaced from said blocking pad, and means responsive to a predetermined rearward movement of said blocking pad to release said locking means whereby said thrust member will be moved by its biasing force forwardly to impart a forward force to said blocking pad in addition to the forward biasing force of said spring means.
References Cited (Backward Citations)
US2644334A
Cited
US3458192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |