Patent US3310973A successfully refreshed from Google Patents.
US3310973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stock pusher
Assignee: A F LEIS Co Inc
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Filing: 1965-03-03
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Granted: 1967-03-28
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Leis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:03
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/04; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6572; Y10T83/6574; Y10T83/748; Y10T83/7593; Y10T83/7633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A STOCK PUSHER OF THE CHARACTER DESCRIBED ADAPTED TO BE MOUNTED ON A METAL FORMING PRESS WHICH INCLUDES STATIONARY AND MOVABLE DIE SHOES, THE STATIONARY DIE SHOE INCLUDING A REFERENCE SURFACE AGAINST WHICH THE METAL STOCK IS URGED BY A PUSHER PLATE FOR PROPER ALIGNMENT IN THE DIE SHOES, SAID STOCK PUSHER COMPRISING A FIRST ARM MEMBER MOUNTED ON SAID STATIONARY DIE SHOE AND HAVING A CONTACT SURFACE FOR ENGAGING THE PUSHER PLATE TO URGE THE METAL STOCK TOWARD THE REFERENCE SURFACE, SAID FIRST ARM MEMBER HAVING A PIVOT CONNECTION ON SAID STATIONARY DIE SHOE FOR PIVOTAL MOVEMENT ABOUT AN AXIS SPACED BELOW THE PUSHER PLATE SO THAT SAID CONTACT SURFACE ENGAGES THE PUSHER PLATE GENERALLY PERPENDICULAR TO THE PLANE OF SAID PUSHER PLATE, A SPRING BIASING SAID FIRST MEMBER AWAY FROM ENGAGEMENT WITH THE PUSHER PLATE, A SECOND ARM MEMBER MOUNTED ON SAID MOVABLE DIE SHOE FOR ENGAGING SAID FIRST MEMBER TO MOVE THE SAID FIRST ARM MEMBER AGAINST THE BIAS OF SAID SPRING INTO ENGAGEMENT WITH THE PUSHER PLATE, AND SPRING MEANS ON SAID SECOND ARM MEMBER WHICH ALLOWS SAID SECOND MEMBER TO APPLY ONLY A PRESET FORCE TO SAID FIRST ARM MEMBER AND THE PUSHER PLATE TO URGE THE METAL AGAINST THE REFERENCE SURFACE.
Claim 2
Dependent Claim
207 words
A STOCK PUSHER OF THE CHARACTER DESCRIBED ADAPTED TO BE MOUNTED ON A METAL FORMING PRESS WHICH INCLUDES STATIONARY AND MOVABLE DIE SHOES, THE STATIONARY DIE SHOE INCLUDING A REFERENCE SURFACE AGAINST WHICH THE METAL STOCK IS URGED BY A PUSHER PLATE FOR PROPER ALIGNMENT IN THE DIE SHOES, SAID STOCK PUSHER COMPRISING A FIRST ARM MEMBER MOUNTED ON SAID STATIONARY DIE SHOE AND HAVING A CONTACT SURFACE FOR ENGAGING THE PUSHER PLATE TO URGE THE METAL STOCK TOWARD THE REFERENCE SURFACE, SAID FIRST ARM MEMBER HAVING A PIVOT CONNECTION ON SAID STATIONARY DIE SHOE FOR PIVOTAL MOVEMENT ABOUT AN AXIS SPACED BELOW THE PUSHER PLATE SO THAT SAID CONTACT SURFACE ENGAGES THE PUSHER PLATE GENERALLY PERPENDICULAR TO THE PLANE OF SAID PUSHER PLATE, A SPRING BIASING SAID FIRST MEMBER AWAY FROM ENGAGEMENT WITH THE PUSHER PLATE, A SECOND ARM MEMBER MOUNTED ON SAID MOVABLE DIE SHOE FOR ENGAGING SAID FIRST MEMBER TO MOVE THE SAID FIRST ARM MEMBER AGAINST THE BIAS OF SAID SPRING INTO ENGAGEMENT WITH THE PUSHER PLATE, AND SPRING MEANS ON SAID SECOND ARM MEMBER WHICH ALLOWS SAID SECOND MEMBER TO APPLY ONLY A PRESET FORCE TO SAID FIRST ARM MEMBER AND THE PUSHER PLATE TO URGE THE METAL AGAINST THE REFERENCE SURFACE.
References Cited (Backward Citations)
US2372499A
Cited
US2964004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |