Patent US3274813A successfully refreshed from Google Patents.
US3274813A
Expired / Lapsed
US
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Generalized stretch forming
Assignee: ARDE PORTLAND Inc
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Filing: 1965-07-08
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Granted: 1966-09-27
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Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Benjamin J Aleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:33
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/34; B21D26/00; B21D26/02; B21D26/033; B21D26/041; B21D26/049; F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0646; F17C2203/0648; F17C2209/00; F17C2209/21; F17C2209/2109; F17C2209/2127; F17C2209/2181; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/234; F17C2260/00; F17C2260/01; F17C2260/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
APPARATUS FOR FORMING HIGH TENSILE STRENGTH PRESSURE VESSELS, COMPRISING A DIE ADAPTED TO RECEIVE A VESSEL BLANK AND HAVING AT LEAST A PORTION OF THE INTERIOR OF THE SIZE AND SHAPED OF SAID VESSEL, SAID DIE HAVING TWO OPENINGS THEREIN, CONTAINER, REFRIGERANT IN SAID CONTAINER, A PUMP HAVING AN INLET AND AN OUTLET, A FIRST CONDUIT CONNECTING SAID CONTAINER OF REFRIGERANT TO SAID PUMP INLET, A SECOND CONDUIT EXTENDING FROM SAID PUMP OUTLET THROUGH ONE OF SAID OPENINGS IN SAID DIE AND ADAPTED TO BE CONNECTED IN COMMUNICATION WITH THE INTERIOR OF SAID VESSEL BLANK FOR SUPPLYING SAID REFRIGERANT UNDER PRESSURE TO THE INTERIOR THEREOF TO COOL AND STRETCH SAID VESSEL BLANK T O SUBSTANTIALLY CONFORM TO THE INTERIOR OF SAID DIE, AND THIRD CONDUIT MEANS FOR VENTING THE SPACE BETWEEN SAID DIE AND SAID VESSEL BLANK.
Claim 2
Dependent Claim
137 words
APPARATUS FOR FORMING HIGH TENSILE STRENGTH PRESSURE VESSELS, COMPRISING A DIE ADAPTED TO RECEIVE A VESSEL BLANK AND HAVING AT LEAST A PORTION OF THE INTERIOR OF THE SIZE AND SHAPED OF SAID VESSEL, SAID DIE HAVING TWO OPENINGS THEREIN, CONTAINER, REFRIGERANT IN SAID CONTAINER, A PUMP HAVING AN INLET AND AN OUTLET, A FIRST CONDUIT CONNECTING SAID CONTAINER OF REFRIGERANT TO SAID PUMP INLET, A SECOND CONDUIT EXTENDING FROM SAID PUMP OUTLET THROUGH ONE OF SAID OPENINGS IN SAID DIE AND ADAPTED TO BE CONNECTED IN COMMUNICATION WITH THE INTERIOR OF SAID VESSEL BLANK FOR SUPPLYING SAID REFRIGERANT UNDER PRESSURE TO THE INTERIOR THEREOF TO COOL AND STRETCH SAID VESSEL BLANK T O SUBSTANTIALLY CONFORM TO THE INTERIOR OF SAID DIE, AND THIRD CONDUIT MEANS FOR VENTING THE SPACE BETWEEN SAID DIE AND SAID VESSEL BLANK.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |