Patent US3091841A successfully refreshed from Google Patents.
US3091841A
Expired / Lapsed
US
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Tools for handling split retaining rings
Assignee: Waldes Kohinoor Inc
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Filing: 1961-07-06
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Granted: 1963-06-04
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Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Wurzel Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:56
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/20; B25B27/205; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53613; Y10T29/5363; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T74/20594
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A PLIERS-TYPE TOOL FOR HANDLING SPLIT SPRING RETAINING RINGS COMPRISING, IN COMBINATION, A PAIR OF ELONGATED LEVER ARMS HAVING HANDLE ENDS, INTERMEDIATE HUB PORTIONS AND TIP ENDS TERMINATING IN WORKING POINTS, A PIVOT PIN EXTENDING TRANSVERSELY THROUGH SAID HUB PORTIONS AND PIVOTALLY CONNECTING SAID ARMS FOR RELATIVE ANGULAR MOTION, SAID HUB PORTIONS HAVING ELONGATED SLOT-LIKE OPENINGS THROUGH WHICH SAID PIVOT PIN EXTENDS, AND LONGITUDINALLY EXTENSIBLE LINKAGE MEANS INTERPOSED BETWEEN AND OPERATIVELY INTERCONNECTING CORRESPONDING OUTER PORTIONS OF THE HANDLE ENDS AND SAID PIVOT PIN FOR PROGRESSIVELY PROJECTING THE PIVOT PIN ALONG SAID SLOTS IN THE DIRECTION OF SAID WORKING POINTS RESPONSIVE TO CLOSING MOVEMENT OF THE HANDLE ENDS, THEREBY LENTHTENING THE HANDLE ENDS AND SHORTENING THE TIPENDS OF THE LEVER ARMS AS EFFECTS AUTOMATIC INCREASE IN THE TRANSMISSION RATIO OF THE TOOL WITH CLOSING OF SAID HANDLE ENDS.
Claim 2
Dependent Claim
137 words
A PLIERS-TYPE TOOL FOR HANDLING SPLIT SPRING RETAINING RINGS COMPRISING, IN COMBINATION, A PAIR OF ELONGATED LEVER ARMS HAVING HANDLE ENDS, INTERMEDIATE HUB PORTIONS AND TIP ENDS TERMINATING IN WORKING POINTS, A PIVOT PIN EXTENDING TRANSVERSELY THROUGH SAID HUB PORTIONS AND PIVOTALLY CONNECTING SAID ARMS FOR RELATIVE ANGULAR MOTION, SAID HUB PORTIONS HAVING ELONGATED SLOT-LIKE OPENINGS THROUGH WHICH SAID PIVOT PIN EXTENDS, AND LONGITUDINALLY EXTENSIBLE LINKAGE MEANS INTERPOSED BETWEEN AND OPERATIVELY INTERCONNECTING CORRESPONDING OUTER PORTIONS OF THE HANDLE ENDS AND SAID PIVOT PIN FOR PROGRESSIVELY PROJECTING THE PIVOT PIN ALONG SAID SLOTS IN THE DIRECTION OF SAID WORKING POINTS RESPONSIVE TO CLOSING MOVEMENT OF THE HANDLE ENDS, THEREBY LENTHTENING THE HANDLE ENDS AND SHORTENING THE TIPENDS OF THE LEVER ARMS AS EFFECTS AUTOMATIC INCREASE IN THE TRANSMISSION RATIO OF THE TOOL WITH CLOSING OF SAID HANDLE ENDS.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |