US3171144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knockout drive assembly
Assignee: National Machinery Co
•
Filing: 1962-08-22
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Granted: 1965-03-02
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 John A Maistros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:06
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21J13/14; B21K; B21K1/00; B21K1/64; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A KNOCKOUT DRIVE FOR FORMING MACHINES COMPRISING A BASE, A POWER DRIVEN ROCKET SHAFT MEMBER JOURNALED ON SAID BASE FOR OSCILLATING MOVEMENT RELATIVE THERETO BETWEEN FIRST AND SECOND POSTIONS, A LEVER MEMBER JOURNALED ON SAID BASE FOR PIVOTAL OSCILLATING MOVEMENT, A FIRST CAM ON ONE OF SAID MEMBERS FORMED WITH A STRAIGHT CAM SURFACE OF INCREASING RADIUS, AN ADJUSTABLE CAM ON THE OTHER OF SAID MEMBERS HAVING A CURVED CAMMING SURFACE ENGAGING SAID STRAIGHT SURFACE WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION, AND ADJUSTMENT MEANS MOUNTING SAID ADJUSTABLE CAM ON SAID OTHER MEMBER FOR MOVEMENT RELATIVE THERETO ALONG A LINE OF ADJUSTMENT PARALLEL TO SAID STRAIGHT CAM SURFACE WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION WHEREBY THE POSITION SAID LEVER MEMBER ASSUMES WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION REMAINS UNCHANGED BY ADJUSTMENT OF SAID ADJUSTABLE CAM.
Claim 2
Dependent Claim
143 words
A KNOCKOUT DRIVE FOR FORMING MACHINES COMPRISING A BASE, A POWER DRIVEN ROCKET SHAFT MEMBER JOURNALED ON SAID BASE FOR OSCILLATING MOVEMENT RELATIVE THERETO BETWEEN FIRST AND SECOND POSTIONS, A LEVER MEMBER JOURNALED ON SAID BASE FOR PIVOTAL OSCILLATING MOVEMENT, A FIRST CAM ON ONE OF SAID MEMBERS FORMED WITH A STRAIGHT CAM SURFACE OF INCREASING RADIUS, AN ADJUSTABLE CAM ON THE OTHER OF SAID MEMBERS HAVING A CURVED CAMMING SURFACE ENGAGING SAID STRAIGHT SURFACE WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION, AND ADJUSTMENT MEANS MOUNTING SAID ADJUSTABLE CAM ON SAID OTHER MEMBER FOR MOVEMENT RELATIVE THERETO ALONG A LINE OF ADJUSTMENT PARALLEL TO SAID STRAIGHT CAM SURFACE WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION WHEREBY THE POSITION SAID LEVER MEMBER ASSUMES WHEN SAID ROCKER SHAFT IS IN SAID SECOND POSITION REMAINS UNCHANGED BY ADJUSTMENT OF SAID ADJUSTABLE CAM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |