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US3337015A Expired / Lapsed US ⏱️ 0.0 years remaining

Latch operated and one way coil clutches

Assignee: Xerox Corp
•
Filing: 1965-07-01
•
Granted: 1967-08-22
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Expires: 1985-07-01
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Abstract

No abstract record available.

Inventors

  • 👤 John W Wagner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:54
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/02; F16D13/025

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 266 words
A CLUTCH MECHANISM INCLUDING A SUPPORT SHAFT, A HOLLOW STEPPED CYLINDRICAL DRIVE MEMBER HAVING AN ENLARGED SUPPORT PORTION AND REDUCED CLUTCHING SURFACE PORTION JOURNALED FOR ROTATION ON SAID SHAFT. A HOLLOW STEPPED CYLINDRICAL DRIVEN MEMBER HAVING AN ENLARGED SUPPORT PORTION AND A REDUCED CLUTCHING SURFACE PORTION SECURED TO SAID SHAFT FOR ROTATION THEREWITH, SAID DRIVE AND DRIVEN MEMBERS HAVING SAID CYLINDRICAL CLUTCHING SURFACES POSITIONED ADJACENT EACH OTHER, A HELICAL DRIVE SPRING ENCOMPASSING SAID CLUTCH SURFACES AND HAVING AN INTERFERENCE FIT THEREWITH, SAID DRIVE SPRING HAVING A DRIVEN END PORTION ENGAGED IN SAID DRIVEN ELEMENT AND A DRIVE END PORTION EXTENDING OUTWARDLY FROM SAID CLUTCHING SURFACES, A CLUTCH SLEEVE MEMBER CIRCUMFERENTIALLY SUPPORTED FOR MOVEMENT ABOUT SAID DRIVE SPRING ON SAID SUPPORT PORTIONS OF SAID DRIVE AND DRIVEN MEMBERS ADAPTED TO ENGAGE SAID DRIVE END PORTION OF SAID DRIVE SPRING, SAID SLEEVE MEMBER HAVING A STOP PORTION ADAPTED TO BE ENGAGED TO PREVENT THE ROTATION OF SAID SLEEVE WITH SAID DRIVE AND DRIVEN MEMBERS A CLUTCH CAP ADJUSTABLY SECURED TO SAID DRIVEN MEMBER AND HAVING A STOP PORTION ADAPTED TO BE ENGAGED TO PREVENT ROTATION OF SAID DRIVEN MEMBER, A FULL-FLOATING HELICAL CLUTCH SPRING CONCENTRICALLY ENCIRCLING SAID SUPPORT SHAFT AND HAVING COILS ELASTICALLY PRELOADED RADIALLY AGAINST SAID INNER PORTIONS OF SAID DRIVE AND DRIVEN MEMBERS AND ADAPTED TO PREVENT ROTATION OF SAID MEMBERS IN A DIRECTION COUNTER TO THE WINDINGS OF SAID CLUTCH SPRING, STOPPING MEANS TO SEQUENTIALLY ENGAGE SAID SLEEVE AND CAP STOP PORTIONS TO PREVENT ROTATION THEREOF, AND CONTROL MEANS FOR ACTUATING SAID STOPPING MEANS AT A PREDETERMINED TIME IN RELATION TO THE OCCURRENCE OF EVENTS.
Claim 2
Dependent Claim 266 words
A CLUTCH MECHANISM INCLUDING A SUPPORT SHAFT, A HOLLOW STEPPED CYLINDRICAL DRIVE MEMBER HAVING AN ENLARGED SUPPORT PORTION AND REDUCED CLUTCHING SURFACE PORTION JOURNALED FOR ROTATION ON SAID SHAFT. A HOLLOW STEPPED CYLINDRICAL DRIVEN MEMBER HAVING AN ENLARGED SUPPORT PORTION AND A REDUCED CLUTCHING SURFACE PORTION SECURED TO SAID SHAFT FOR ROTATION THEREWITH, SAID DRIVE AND DRIVEN MEMBERS HAVING SAID CYLINDRICAL CLUTCHING SURFACES POSITIONED ADJACENT EACH OTHER, A HELICAL DRIVE SPRING ENCOMPASSING SAID CLUTCH SURFACES AND HAVING AN INTERFERENCE FIT THEREWITH, SAID DRIVE SPRING HAVING A DRIVEN END PORTION ENGAGED IN SAID DRIVEN ELEMENT AND A DRIVE END PORTION EXTENDING OUTWARDLY FROM SAID CLUTCHING SURFACES, A CLUTCH SLEEVE MEMBER CIRCUMFERENTIALLY SUPPORTED FOR MOVEMENT ABOUT SAID DRIVE SPRING ON SAID SUPPORT PORTIONS OF SAID DRIVE AND DRIVEN MEMBERS ADAPTED TO ENGAGE SAID DRIVE END PORTION OF SAID DRIVE SPRING, SAID SLEEVE MEMBER HAVING A STOP PORTION ADAPTED TO BE ENGAGED TO PREVENT THE ROTATION OF SAID SLEEVE WITH SAID DRIVE AND DRIVEN MEMBERS A CLUTCH CAP ADJUSTABLY SECURED TO SAID DRIVEN MEMBER AND HAVING A STOP PORTION ADAPTED TO BE ENGAGED TO PREVENT ROTATION OF SAID DRIVEN MEMBER, A FULL-FLOATING HELICAL CLUTCH SPRING CONCENTRICALLY ENCIRCLING SAID SUPPORT SHAFT AND HAVING COILS ELASTICALLY PRELOADED RADIALLY AGAINST SAID INNER PORTIONS OF SAID DRIVE AND DRIVEN MEMBERS AND ADAPTED TO PREVENT ROTATION OF SAID MEMBERS IN A DIRECTION COUNTER TO THE WINDINGS OF SAID CLUTCH SPRING, STOPPING MEANS TO SEQUENTIALLY ENGAGE SAID SLEEVE AND CAP STOP PORTIONS TO PREVENT ROTATION THEREOF, AND CONTROL MEANS FOR ACTUATING SAID STOPPING MEANS AT A PREDETERMINED TIME IN RELATION TO THE OCCURRENCE OF EVENTS.

References Cited (Backward Citations)

US2475432A Cited
US2669331A Cited
US3021512A Cited
US2885042A Cited
US3026739A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-08-21 1971-02-20 1971-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-08-21 1975-02-20 1975-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-08-21 1979-02-20 1979-08-22 $7700.00 Window Closed / Lapsed

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