Patent US3793902A successfully refreshed from Google Patents.
US3793902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive arrangement
Assignee: Tecalemit Engineering Ltd
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Filing: 1972-10-18
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Granted: 1974-02-26
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Expires: 1992-10-18
Abstract
Abstract A drive arrangement for converting rotary motion to linear motion in which a rotating member co-operates with a co-operating member on a follower member, the follower moving along a line transverse to the axis of rotation of the rotating member and the co-operating member moving transversely both to the line and the axis of rotation.
Inventors
- 👤 M Grantham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:42
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/36; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18256
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
224 words
A drive arrangement for converting rotary motion to linear motion comprising: a rotatable member rotatable abOut an axis; a co-operating pin mounted on said rotatable member and spaced from said axis; a co-operating cam member mounted on a shaft extending along a line transverse to said axis and rotatable about its own axis; said shaft being arranged for movement by the cam member in only one direction along said line; a resilient coil spring mounted coaxially on said shaft for biasing said cam member in an opposite direction along said line; said cam member rotatively mounted on said shaft for movement generally transversely of both said line and said axis of the rotatable member, said coil spring bearing on said shaft so that the movement of said cam member transversely of said line causes said coil spring to wind and unwind, said co-operating pin contacting said cam member directly when said rotatable member rotates with said co-operating pin describing a circular path about said axis of said rotatable member, said cam member moving said shaft longitudinally in said one direction during travel of said pin on a portion of said circular path and disengaged from said cam member when said shaft is moved in said opposite direction by said coil spring during travel of said pin on the remaining portion of said circular path.
Claim 2
Dependent Claim
224 words
A drive arrangement for converting rotary motion to linear motion comprising: a rotatable member rotatable abOut an axis; a co-operating pin mounted on said rotatable member and spaced from said axis; a co-operating cam member mounted on a shaft extending along a line transverse to said axis and rotatable about its own axis; said shaft being arranged for movement by the cam member in only one direction along said line; a resilient coil spring mounted coaxially on said shaft for biasing said cam member in an opposite direction along said line; said cam member rotatively mounted on said shaft for movement generally transversely of both said line and said axis of the rotatable member, said coil spring bearing on said shaft so that the movement of said cam member transversely of said line causes said coil spring to wind and unwind, said co-operating pin contacting said cam member directly when said rotatable member rotates with said co-operating pin describing a circular path about said axis of said rotatable member, said cam member moving said shaft longitudinally in said one direction during travel of said pin on a portion of said circular path and disengaged from said cam member when said shaft is moved in said opposite direction by said coil spring during travel of said pin on the remaining portion of said circular path.
Claim 3
Dependent Claim
23 words
A piston pump incorporating a drive arrangement according to claim 1, and wherein said shaft is connected to a piston of said pump.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |