US3157111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work ejector for presses
Assignee: AVIS IND CORP
•
Filing: 1961-05-15
•
Granted: 1964-11-17
•
Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 George L Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
B; B21; B21D; B21D45/00; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PRESS FOR SHAPING WORKPIECES COMPRISING A FRAME, A FIRST WORK FORMING MEMBER ON SAID FRAME, A RAM MOUNTED ON SAID FRAME FOR RECIPROCATION TOWARD AND AWAY FROM SAID FIRST FORMING MEMBER, A SECOND WORK FORMING MEMBER ON SAID RAM COOPERABLE WITH SAID FIRST WORK FORMING MEMBER UPON MOVEMENT OF SAID RAM TOWARD THE LATTER TO SHAPE A WORKPIECE, POWER MEANS INCLUDING A FLYWHEEL FOR RECIPROCATING SAID RAM, A WORK EJECTOR ADJACENT ONE OF SAID WORK FORMING MEMBERS AND OPERATIVE TO REMOVE THE WORKPIECE FROM SAID ONE OF SAID WORK FORMING MEMBERS AFTER SHAPING, AND A HYDRAULIC POWER DEVICE FOR OPERATING SAID EJECTOR, SAID POWER DEVICE BEING OPERATIVELY CONNECTED TO SAID FLYWHEEL TO BE OPERATED BY THE INERTIA THEREOF DURING THE RETURN STROKE OF THE RAM.
Claim 2
Dependent Claim
126 words
A PRESS FOR SHAPING WORKPIECES COMPRISING A FRAME, A FIRST WORK FORMING MEMBER ON SAID FRAME, A RAM MOUNTED ON SAID FRAME FOR RECIPROCATION TOWARD AND AWAY FROM SAID FIRST FORMING MEMBER, A SECOND WORK FORMING MEMBER ON SAID RAM COOPERABLE WITH SAID FIRST WORK FORMING MEMBER UPON MOVEMENT OF SAID RAM TOWARD THE LATTER TO SHAPE A WORKPIECE, POWER MEANS INCLUDING A FLYWHEEL FOR RECIPROCATING SAID RAM, A WORK EJECTOR ADJACENT ONE OF SAID WORK FORMING MEMBERS AND OPERATIVE TO REMOVE THE WORKPIECE FROM SAID ONE OF SAID WORK FORMING MEMBERS AFTER SHAPING, AND A HYDRAULIC POWER DEVICE FOR OPERATING SAID EJECTOR, SAID POWER DEVICE BEING OPERATIVELY CONNECTED TO SAID FLYWHEEL TO BE OPERATED BY THE INERTIA THEREOF DURING THE RETURN STROKE OF THE RAM.
References Cited (Backward Citations)
US2173358A
Cited
US2387041A
Cited
US2200998A
Cited
US2280849A
Cited
US2482539A
Cited
US2484879A
Cited
US2407855A
Cited
US2866505A
Cited
US2789293A
Cited
US2867185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |