US3831457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable tracking cam follower
Assignee: Motors Liquidation Co
•
Filing: 1973-03-05
•
Granted: 1974-08-27
•
Expires: 1993-03-05
Abstract
Abstract A cam follower in the form of a roller has an outer peripheral contact surface of varying width to effect variable roller edge contact on the surface of a cam with which it is in rolling engagement.
Inventors
- 👤 R Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:03
CPC Classifications
F; F16; F16H; F16H53/00; F16H53/06; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L2305/00; F01L2305/02; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
68 words
In a cam and follower mechanism, a rotary cam having a straight follower lifting cam surface, a reciprocally guided follower, and a variable tracking cam follower roller rotatably supported by said follower for engagement with said cam surface on said cam, said variable tracking cam follower roller having undulating edges defining the opposite side edges of the outer peripheral surface of said follower roller engaging said cam surface.
Claim 2
Dependent Claim
68 words
In a cam and follower mechanism, a rotary cam having a straight follower lifting cam surface, a reciprocally guided follower, and a variable tracking cam follower roller rotatably supported by said follower for engagement with said cam surface on said cam, said variable tracking cam follower roller having undulating edges defining the opposite side edges of the outer peripheral surface of said follower roller engaging said cam surface.
Claim 3
Dependent Claim
41 words
In a cam and follower mechanism according to claim 1 wherein the undulating edges of said variable tracking cam follower are in the form of a continuous series of angular projections relative to the sides of said variable tracking cam follower.
Claim 4
Dependent Claim
32 words
In a cam and follower mechanism according to claim 1 wherein said undulating edges of said variable tracking cam follower roller are in the form of a continuous series of circle segments.
Claim 5
Dependent Claim
116 words
A cam follower roller for use with a rotating cam in a cam and follower mechanism of the type in which the rotating cam has a straight follower lifting cam surface and a follower is reciprocally guided and rotatably supports a cam follower roller for rolling engagement with the cam surface of the rotary cam, said cam follower roller having parallel sides and an outer peripheral cam engaging surface with the edges of said cam engaging surface being non-parallel to the sides of said roller whereby said peripheral cam engaging surface is of varying width to effect variable roller edge contact on the cam surface of the rotating cam with which it is in rolling contact.
Claim 6
Dependent Claim
116 words
A cam follower roller for use with a rotating cam in a cam and follower mechanism of the type in which the rotating cam has a straight follower lifting cam surface and a follower is reciprocally guided and rotatably supports a cam follower roller for rolling engagement with the cam surface of the rotary cam, said cam follower roller having parallel sides and an outer peripheral cam engaging surface with the edges of said cam engaging surface being non-parallel to the sides of said roller whereby said peripheral cam engaging surface is of varying width to effect variable roller edge contact on the cam surface of the rotating cam with which it is in rolling contact.
Claim 7
Dependent Claim
37 words
A cam follower roller according to claim 4 wherein said edges of said cam engaging surface are each in the form of a continuous series of angular projections relative to said sides of saiD cam follower roller.
Claim 8
Dependent Claim
28 words
A cam follower roller according to claim 4 wherein said edges of said cam engaging surface are each in the form of a continuous series of circle segments.
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) | 1977-08-26 | 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 |