US3258948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal forming apparatus
Assignee: General Electric Co
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Filing: 1963-11-01
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Granted: 1966-07-05
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Sr John I Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
SHEET MATERIAL FORMING APPARATUS COMPRISING: (A) A SUPPORT; (B) A CASING HAVING A BOTTOM WALL AND PERIPHERAL UPSTANDING SIDE WALLS DEFINING A CAVITY THEREIN; (C) RESILIENT MEANS SUPPORTING SAID CASING ON SAID SUPPORT; (D) A BODY OF ELASTOMERIC MATERIAL FILLING SAID CAVITY AND HAVING A GENERALLY PLANAR SURFACE THEREOF EXPOSIED TO RECEIVE A WORKPIECE OF SHEET MATERIAL THEREON; (E) PUNCH MEANS DISPOSED ARE ARRANGED TO ENGAGE SAID WORKPIECE WHEN ON SAID EXPOSED SURFACE OF SAID BODY OF ELASTOMERIC MATERIAL AND TO CAUSE PIVOTAL MOVEMENT OF SAID CASING AGAINST SAID RESILIENT SUPPORT WHEREBY TO FORCE SAID WORKPIECE PARTIALLY INTO SAID BODY OF ELASTOMERIC MATERIAL AND TO BEND A PORTION OF SAID WORKPIECE AROUND A CORNER OF SAID PUNCH.
Claim 2
Dependent Claim
117 words
SHEET MATERIAL FORMING APPARATUS COMPRISING: (A) A SUPPORT; (B) A CASING HAVING A BOTTOM WALL AND PERIPHERAL UPSTANDING SIDE WALLS DEFINING A CAVITY THEREIN; (C) RESILIENT MEANS SUPPORTING SAID CASING ON SAID SUPPORT; (D) A BODY OF ELASTOMERIC MATERIAL FILLING SAID CAVITY AND HAVING A GENERALLY PLANAR SURFACE THEREOF EXPOSIED TO RECEIVE A WORKPIECE OF SHEET MATERIAL THEREON; (E) PUNCH MEANS DISPOSED ARE ARRANGED TO ENGAGE SAID WORKPIECE WHEN ON SAID EXPOSED SURFACE OF SAID BODY OF ELASTOMERIC MATERIAL AND TO CAUSE PIVOTAL MOVEMENT OF SAID CASING AGAINST SAID RESILIENT SUPPORT WHEREBY TO FORCE SAID WORKPIECE PARTIALLY INTO SAID BODY OF ELASTOMERIC MATERIAL AND TO BEND A PORTION OF SAID WORKPIECE AROUND A CORNER OF SAID PUNCH.
References Cited (Backward Citations)
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Cited
US2362006A
Cited
US2390803A
Cited
US2443596A
Cited
GB690007A
Cited
US3045327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |