US3862580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic pawl with integral pawl spring
Assignee: AG Communication Systems Corp
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Filing: 1973-11-02
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Granted: 1975-01-28
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Expires: 1993-11-02
Abstract
Abstract A pawl for use with a ratchet wheel in which the pawl includes a hub-like section and a head section extending outwardly from the hub-like section in one direction and as energy storing tail section extending outwardly from the hub-like section in a second direction. Means are also provided to limit movement of the pawl relative to the ratchet wheel to reduce the area of surface contact between the pawl and ratchet wheel when the pawl is biased against the ratchet wheel for purpose of noise reduction.
Inventors
- 👤 Eduard J Pulles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:58
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/12; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2136; Y10T74/2137; Y10T74/2138
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
131 words
A unitary pawl for use with a ratchet wheel in which said pawl comprises: a hub-like section adapted to pivot upon a shaft spaced from a ratchEt wheel; a substantially rigid first portion extending outwardly from said hublike section in a first direction and adapted to be in contact with a ratchet wheel; means for limiting the movement of said pawl whereby said first portion is spaced from said ratchet wheel to reduce the contact area between said pawl and a ratchet wheel when said pawl is in a biased position relative to said ratchet wheel; a flexible second portion extending from said hub-like section in a second direction, said second portion including integral resilient means for storing energy and releasing said energy to bias said pawl against said ratchet wheel.
Claim 2
Dependent Claim
131 words
A unitary pawl for use with a ratchet wheel in which said pawl comprises: a hub-like section adapted to pivot upon a shaft spaced from a ratchEt wheel; a substantially rigid first portion extending outwardly from said hublike section in a first direction and adapted to be in contact with a ratchet wheel; means for limiting the movement of said pawl whereby said first portion is spaced from said ratchet wheel to reduce the contact area between said pawl and a ratchet wheel when said pawl is in a biased position relative to said ratchet wheel; a flexible second portion extending from said hub-like section in a second direction, said second portion including integral resilient means for storing energy and releasing said energy to bias said pawl against said ratchet wheel.
Claim 3
Dependent Claim
33 words
A pawl in accordance with claim 1 wherein said movement limiting means includes at least one pin positioned adjacent said second portion to limit movement of said first portion toward said ratchet wheel.
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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |