Patent US4908169A successfully refreshed from Google Patents.
US3754473A
Expired / Lapsed
US
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Cam follower assemblies
Assignee: Rank Organization Ltd
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Filing: 1971-12-22
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Granted: 1973-08-28
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Expires: 1991-12-22
Abstract
Abstract A cam follower assembly comprises two followers biased apart, in a direction transverse to the movement controlled by the cam, against two cam faces. By attaching the element moved to one follower, movement in either direction is controlled by one cam face, and accurate control can be achieved with a small assembly.
Inventors
- 👤 R Massey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:55
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/186; G; G03; G03B; G03B17/00; G03B17/02; G03B17/12; G03B17/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18984; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
A cam follower assembly for co-operating with a cam having a control face and a back-up face, the assembly comprising a base member, a control cam follower mounted on the base member for cooperation with the cam control face, and a back-up cam follower connected to the base member by resilient means for biasing said back-up cam follower into engagement with the cam back-up face, the control and back-up cam followers being disposed so that the line joining their centers is transverse to the direction of movement of the assembly controlled by the control face.
Claim 2
Dependent Claim
95 words
A cam follower assembly for co-operating with a cam having a control face and a back-up face, the assembly comprising a base member, a control cam follower mounted on the base member for cooperation with the cam control face, and a back-up cam follower connected to the base member by resilient means for biasing said back-up cam follower into engagement with the cam back-up face, the control and back-up cam followers being disposed so that the line joining their centers is transverse to the direction of movement of the assembly controlled by the control face.
Claim 3
Dependent Claim
26 words
An assembly as claimed in claim 1, in which the cam followers are disposed so that the line joining their centres is perpendicular to said direction.
Claim 4
Dependent Claim
23 words
An assembly as claimed in claim 1, in which each cam follower is a roller journalled for rotation along its respective cam face.
Claim 5
Dependent Claim
16 words
An assembly as claimed in claim 1, in which the resilient means is a coil spring.
Claim 6
Dependent Claim
115 words
In an assembly including a first member defining first and second cam faces and adapted for movement in one direction, and a second member carrying cam follower means cooperating with said cam faces to cause movement of said second member in a second direction in response to movement of said first member in said first direction, the improvement wherein said cam follower means comprises a base member, a first cam follower mounted on the base member for cooperation with said first cam face, a second cam follower, and resilient means connecting said second cam follower to said base member, said cam followers being disposed with the line joining their centres oblique to said second direction.
Claim 7
Dependent Claim
115 words
In an assembly including a first member defining first and second cam faces and adapted for movement in one direction, and a second member carrying cam follower means cooperating with said cam faces to cause movement of said second member in a second direction in response to movement of said first member in said first direction, the improvement wherein said cam follower means comprises a base member, a first cam follower mounted on the base member for cooperation with said first cam face, a second cam follower, and resilient means connecting said second cam follower to said base member, said cam followers being disposed with the line joining their centres oblique to said second direction.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |