Patent US3390565A successfully refreshed from Google Patents.
US3390565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal drawing stripper
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1966-07-08
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Granted: 1968-07-02
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Expires: 1986-07-08
Abstract
No abstract record available.
Inventors
- 👤 Smith Arthur Dean
- 👤 Henry G Henrickson
- 👤 Langewis Cornelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:07
CPC Classifications
B; B21; B21D; B21D24/00; B21C; B21C1/00; B21C1/16; B21C1/22; B21C1/24; B21C1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN CONTAINER-FORMING MACHINES OF THE TYPE HAVING A DIE AND A RECIPROCATING RAM FOR DRAWING A BLANK THROUGH SAID DIE, A MECHANISM FOR STRIPPING THE FABRICATED CONTAINER FROM THE RAM COMPRISING AN ANNULAR DISK HAVING A CENTRAL OPENING, A PLURALITY OF JUXTAPOSED CONTAINER-RETURN BLOCKING MEMBERS ARRANGED ABOUT SAID OPENING AND HAVING FINGER PORTIONS EXTENDING RADIALLY INTO THE SPACE DEFINED BY SAID OPENING, MEANS FOR YIELDABLY HOLDING SAID MEMBERS IN THE DEFINED POSITIONS, AND MEANS INTERPOSED BETWEEN SAID MEMBERS AND SAID DISK AND ACTING AS FULCRUM MEANS FOR LIMITED BACKWARD MOVEMENT AND TILTING OF SAID MEMBERS AGAINST THE URGENCY OF SAID YIELDABLE MEANS AS THEIR FINGER PORTIONS ARE ENGAGED FROM WITHIN BY AN EMERGING CONTAINER.
Claim 2
Dependent Claim
114 words
IN CONTAINER-FORMING MACHINES OF THE TYPE HAVING A DIE AND A RECIPROCATING RAM FOR DRAWING A BLANK THROUGH SAID DIE, A MECHANISM FOR STRIPPING THE FABRICATED CONTAINER FROM THE RAM COMPRISING AN ANNULAR DISK HAVING A CENTRAL OPENING, A PLURALITY OF JUXTAPOSED CONTAINER-RETURN BLOCKING MEMBERS ARRANGED ABOUT SAID OPENING AND HAVING FINGER PORTIONS EXTENDING RADIALLY INTO THE SPACE DEFINED BY SAID OPENING, MEANS FOR YIELDABLY HOLDING SAID MEMBERS IN THE DEFINED POSITIONS, AND MEANS INTERPOSED BETWEEN SAID MEMBERS AND SAID DISK AND ACTING AS FULCRUM MEANS FOR LIMITED BACKWARD MOVEMENT AND TILTING OF SAID MEMBERS AGAINST THE URGENCY OF SAID YIELDABLE MEANS AS THEIR FINGER PORTIONS ARE ENGAGED FROM WITHIN BY AN EMERGING CONTAINER.
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |