US3207496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable rate spring
Assignee: Individual
•
Filing: 1963-11-18
•
Granted: 1965-09-21
•
Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 Hrebicek James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:25
CPC Classifications
F; F41; F41C; F41C23/00; F41C23/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A VARIABLE RATE SPRING MECHANISM COMPRISING RELATIVELY RECIPROCABLE ACTION AND RECTION ELEMENTS, CAM SURFACES ON SAID ELEMENTS, SAID SURFACES DIVERGING WITH RESPECT TO ONE ANOTHER, A FOLLOWER FOR EACH CAM SURFACE, MEANS PIVOTALLY CONNECTING SAID FOLLOWERS TOGETHER, INDIVIDUAL LEVERS PIVOTED AT ONE END TO EACH ELEMENT AND PIVOTED AT THEIR OPPOSITE END TO A COMMON MEMBER, AND RESILIENT MEANS HAVING ONE END CONNECTED TO THE COMMON MEMBER AND ITS OTHER END CONNECTED TO THE MEANS PIVOTALLY CONNECTING SAID FOLLOWERS, SAID COMMON MEMBER BEING MOVED IN UNISON WITH THE PIVOT BY SAID LEVERS AND THEREBY CAUSING BOTH ENDS OF THE SPRING TO MOVE IN UNISON AS THE ACTION AND REACTION ELEMENTS RECIPROCATE RELATIVE TO ONE ANOTHER.
Claim 2
Dependent Claim
115 words
A VARIABLE RATE SPRING MECHANISM COMPRISING RELATIVELY RECIPROCABLE ACTION AND RECTION ELEMENTS, CAM SURFACES ON SAID ELEMENTS, SAID SURFACES DIVERGING WITH RESPECT TO ONE ANOTHER, A FOLLOWER FOR EACH CAM SURFACE, MEANS PIVOTALLY CONNECTING SAID FOLLOWERS TOGETHER, INDIVIDUAL LEVERS PIVOTED AT ONE END TO EACH ELEMENT AND PIVOTED AT THEIR OPPOSITE END TO A COMMON MEMBER, AND RESILIENT MEANS HAVING ONE END CONNECTED TO THE COMMON MEMBER AND ITS OTHER END CONNECTED TO THE MEANS PIVOTALLY CONNECTING SAID FOLLOWERS, SAID COMMON MEMBER BEING MOVED IN UNISON WITH THE PIVOT BY SAID LEVERS AND THEREBY CAUSING BOTH ENDS OF THE SPRING TO MOVE IN UNISON AS THE ACTION AND REACTION ELEMENTS RECIPROCATE RELATIVE TO ONE ANOTHER.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |