US3238797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip cam arrangement
Assignee: Individual
•
Filing: 1964-01-03
•
Granted: 1966-03-08
•
Expires: 1984-01-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Coughren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:08
CPC Classifications
F; F16; F16H; F16H53/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
229 words
AN ASSEMBLY COMPRISING (1) A FIRST CAM HAVING (A) THREE SPACED LEVEL SURFACES OF DIFFERENT HEIGHTS, (B) TWO INCLINED SURFACES EXTENDING BETWEEN THE LEVEL PORTIONS, AND (C) TWO SPACED SHOULDERS; (2) A SECOND CAM SLIDABLY SEATED ON THE FIRST CAM AND HAVING (A) TWO SPACED LEVEL SURFACES OF DIFFERENT HEIGHTS (B) AN INCLINED SURFACE EXTENDING BETWEEN THE LEVEL SURFACES, AND (C) TWO SPACED SHOULDERS ONE ENGAGEABLE WITH ONE SHOULDER OF THE FIRST CAM UPON MOVEMENT OF THE LATTER IN ONE DIRECTION, THE OTHER ENGAGEABLE WITH THE OTHER SHOULDER OF THE FIRST CAM UPON MOVEMENT OF THE LATTER IN THE OPPOSITE DIRECTION, THE SPACING OF THE SHOULDERS OF THE FIRST CAM BEING DIFFERENT FROM THAT OF THE SECOND CAM, WHEREBY THE FIRST CAM HAS SOME MOVEMENT IN BOTH OF ITS AFORESAID DIRECTION INDEPENDENTLY OF THE SECOND CAM; AND (3) A FOLLOWER ENGAGEABLE WITH THE LEVEL AND INCLINED PORTIONS OF THE SECOND CAM AND RESILIENTLY URGING THE SECOND CAM IN SUCH A DIRECTION AS TO KEEP THE SECOND CAM SEATED ON THE FIRST CAM; THE SECOND CAM HAVING A PROTUBERANCE AT THE EDGE OF THE HIGHER LEVEL SURFACE ADJACENT THE INCLINED SURFACE, SAID PROTUBERANCE COOPERATING WITH THE FOLLOWER UPON ENGAGEMENT THEREWITH TO PREVENT THE SECOND CAM FROM FOLLOWING THE FIRST CAM IN ITS MOVEMENT MERELY BY VIRTUE OF FRICTION DUE TO THE SEATING OF THE SECOND CAM ON THE FIRST CAM.
Claim 2
Dependent Claim
229 words
AN ASSEMBLY COMPRISING (1) A FIRST CAM HAVING (A) THREE SPACED LEVEL SURFACES OF DIFFERENT HEIGHTS, (B) TWO INCLINED SURFACES EXTENDING BETWEEN THE LEVEL PORTIONS, AND (C) TWO SPACED SHOULDERS; (2) A SECOND CAM SLIDABLY SEATED ON THE FIRST CAM AND HAVING (A) TWO SPACED LEVEL SURFACES OF DIFFERENT HEIGHTS (B) AN INCLINED SURFACE EXTENDING BETWEEN THE LEVEL SURFACES, AND (C) TWO SPACED SHOULDERS ONE ENGAGEABLE WITH ONE SHOULDER OF THE FIRST CAM UPON MOVEMENT OF THE LATTER IN ONE DIRECTION, THE OTHER ENGAGEABLE WITH THE OTHER SHOULDER OF THE FIRST CAM UPON MOVEMENT OF THE LATTER IN THE OPPOSITE DIRECTION, THE SPACING OF THE SHOULDERS OF THE FIRST CAM BEING DIFFERENT FROM THAT OF THE SECOND CAM, WHEREBY THE FIRST CAM HAS SOME MOVEMENT IN BOTH OF ITS AFORESAID DIRECTION INDEPENDENTLY OF THE SECOND CAM; AND (3) A FOLLOWER ENGAGEABLE WITH THE LEVEL AND INCLINED PORTIONS OF THE SECOND CAM AND RESILIENTLY URGING THE SECOND CAM IN SUCH A DIRECTION AS TO KEEP THE SECOND CAM SEATED ON THE FIRST CAM; THE SECOND CAM HAVING A PROTUBERANCE AT THE EDGE OF THE HIGHER LEVEL SURFACE ADJACENT THE INCLINED SURFACE, SAID PROTUBERANCE COOPERATING WITH THE FOLLOWER UPON ENGAGEMENT THEREWITH TO PREVENT THE SECOND CAM FROM FOLLOWING THE FIRST CAM IN ITS MOVEMENT MERELY BY VIRTUE OF FRICTION DUE TO THE SEATING OF THE SECOND CAM ON THE FIRST CAM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |