US3129642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically operated tool
Assignee: Gardner Denver Inc
•
Filing: 1961-06-26
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Granted: 1964-04-21
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Sorensen
- 👤 Jr William Workman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/11; B25D17/12; B25B; B25B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A POWER TOOL; INNER AND OUTER TELESCOPING TUBULAR MEMBERS RESPECTIVELY EXTENDING SUBSTANTIALLY THE FULL LENGTH OF SAID TOOL; PRESSURE FLUID MOTOR MEANS DISPOSED WITHIN SAID INNER MEMBERS; AXIALLY SPACED MOTOR EXHAUSTED RECEIVING CHAMBERS DEFINED BY AND BETWEEN SAID MEMBERS; AND, AN EXHAUST CHOKE VALVE DISPOSED BETWEEN SAID CHAMBERS TO CONTROL THE FLOW OF EXHAUST THEREBETWEEN AND OPERABLE FOR STARTING AND STOPPING SAID MOTOR MEANS IN RESPONSE TO TELESCOPING MOVEMENT OF SAID MEMBERS.
Claim 2
Dependent Claim
73 words
IN A POWER TOOL; INNER AND OUTER TELESCOPING TUBULAR MEMBERS RESPECTIVELY EXTENDING SUBSTANTIALLY THE FULL LENGTH OF SAID TOOL; PRESSURE FLUID MOTOR MEANS DISPOSED WITHIN SAID INNER MEMBERS; AXIALLY SPACED MOTOR EXHAUSTED RECEIVING CHAMBERS DEFINED BY AND BETWEEN SAID MEMBERS; AND, AN EXHAUST CHOKE VALVE DISPOSED BETWEEN SAID CHAMBERS TO CONTROL THE FLOW OF EXHAUST THEREBETWEEN AND OPERABLE FOR STARTING AND STOPPING SAID MOTOR MEANS IN RESPONSE TO TELESCOPING MOVEMENT OF SAID MEMBERS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |