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US3240520A Expired / Lapsed US ⏱️ 0.0 years remaining

Quick releasing high strength connector

Assignee: North American Aviation Corp
•
Filing: 1962-11-16
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Granted: 1966-03-15
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Expires: 1982-11-16
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Abstract

No abstract record available.

Inventors

  • 👤 William J Dailey
  • 👤 Springs Santa Fe
  • 👤 Jack C Helf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 13:58
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17231; Y10T279/17239; Y10T279/17256; Y10T403/00; Y10T403/59; Y10T403/599

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 285 words
A QUICK-RELEASING HIGH STRENGTH CONNECTOR COMPRISING: FIRST AND SECOND MUTUALLY ALIGNED SHAFTS HAVING MUTUALLY ALIGNED ABUTTING FLANGED ENDS EACH PROVIDING A BEARING SHOULDER, THE BEARING SHOULDER ON SAID FIRST SHAFT HAVING A FIRST CAMMING SURFACE IN THE FORM OF A CONE EXTENDING INWARDLY OF SAID SHAFTS AND AWAY FROM SAID SECOND SHAFT; A PLURALITY OF FLOATING DOGS EACH EXTENDING CIRCUMFERENTIALLY OF SAID FLANGED ENDS AND ALL COLLECTIVELY SUBSTANTIALLY CIRCUMSCRIBING THE ENTIRE PERIPHERY OF SAID FLANGED ENDS, EACH OF SAID DOGS HAVING A FIRST EAR ENGAGED WITH SAID SECOND SHAFT END, SAID FIRST EAR HAVING A SECOND CAMMING SURFACE MATING WITH SAID FIRST CAMMING SURFACE FOR COOPERATING WITH SAID FIRST SHAFT END FOR PROVIDING A SUFFICIENT CAMMING FORCE ON SAID DOGS WHEN SAID SHAFTS ARE UNDER A TENSILE LOAD TO DISENGAGE SAID DOGS FROM SAID FIRST SHAFT; AN AXIALLY SLIDABLE SLEEVE SURROUNDING SAID DOGS FOR RESTRAINING OUTWARD MOVEMENT OF SAID DOGS, SAID SLEEVE HAVING AT LEAST TWO BEARING CONTACT SURFACES WITH EACH OF SAID DOGS WHEN SAID DOGS ARE ENGAGED WITH BOTH OF SAID SHAFTS, EACH OF SAID BEARING CONTACT SURFACES BEING FURTHER AXIALLY FROM THE ABUTMENT OF SAID TWO SHAFT ENDS THAN THE ENGAGEMENT OF SAID EARS WITH SAID SHAFT ENDS ARE FROM THE ABUTMENT OF SAID TWO SHAFT ENDS SO THAT A MINIMAL RADIAL FORCE EXISTS AT THE INTERFACE OF SAID SECOND EAR AND SAID SECOND SHAFT END; EACH OF SAID DOGS COMPRISING AN EXTERNAL CIRCUMFERENTIALLY EXTENDING REBATED PORTION INTERMEDIATE THE BEARING SURFACES AND IMMEDIATELY ADJACENT THERETO, THE EDGES OF THE REBATED PORTION ALSO BEING FURTHER AXIALLY FROM THE ABUTMENT OF SAID TWO SHAFT ENDS THAN THE ENGAGEMENT OF SAID EARS WITH AID SHAFT ENDS ARE FROM THE ABUTMENT OF SAID TWO SHAFT ENDS.

References Cited (Backward Citations)

US938534A Cited
FR847163A Cited
US2448817A Cited
US2507127A Cited
US2614781A Cited
US2773437A Cited
US2952482A Cited
US2951274A Cited
US3096999A Cited
US3028179A Cited
US3077330A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-14 1969-09-13 1970-03-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-14 1973-09-13 1974-03-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-14 1977-09-13 1978-03-15 $7700.00 Window Closed / Lapsed

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