US3276235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic tube bending machine
Assignee: Parker Hannifin Corp
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Filing: 1963-07-02
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Granted: 1966-10-04
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 John H Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:12
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A TUBE BENDING MACHINE, A RADIUS BLOCK, FLUID MOTOR MEANS FOR ROTATING SAID RADIUS BLOCK, A SPROCKET CONNECTED TO SAID RADIUS BLOCK IN DRIVING CONNECTION THEREWITH A CHAIN ENGAGED WITH SAID SPROCKET, ONE END OF SAID CHAIN BEING CONNECTED TO SAID FLUID MOTOR MEANS AND THE OTHER END OF SAID CHAIN BEING CONNECTED TO AN ADJUSTABLE STOP MECHANISM FOR LIMITING THE MOVEMENT OF SAID CHAIN, SAID STOP MECHANISM INCLUDING A ROD AND A BLOCK, MEANS FOR ADJUSTABLY POSITIONING SAID BLOCK ALONG SAID ROD, A STOP COLLAR CONNECTED TO SAID CHAIN AND BEING MOVABLE THEREBY INTO ENGAGEMENT WITH SAID BLOCK TO PREVENT FURTHER MOVEMENT OF SAID CHAIN.
Claim 2
Dependent Claim
107 words
IN A TUBE BENDING MACHINE, A RADIUS BLOCK, FLUID MOTOR MEANS FOR ROTATING SAID RADIUS BLOCK, A SPROCKET CONNECTED TO SAID RADIUS BLOCK IN DRIVING CONNECTION THEREWITH A CHAIN ENGAGED WITH SAID SPROCKET, ONE END OF SAID CHAIN BEING CONNECTED TO SAID FLUID MOTOR MEANS AND THE OTHER END OF SAID CHAIN BEING CONNECTED TO AN ADJUSTABLE STOP MECHANISM FOR LIMITING THE MOVEMENT OF SAID CHAIN, SAID STOP MECHANISM INCLUDING A ROD AND A BLOCK, MEANS FOR ADJUSTABLY POSITIONING SAID BLOCK ALONG SAID ROD, A STOP COLLAR CONNECTED TO SAID CHAIN AND BEING MOVABLE THEREBY INTO ENGAGEMENT WITH SAID BLOCK TO PREVENT FURTHER MOVEMENT OF SAID CHAIN.
References Cited (Backward Citations)
US2312122A
Cited
FR1239404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |