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US3613397A Expired / Lapsed US ⏱️ 0.0 years remaining

Constant-velocity universal joint

Assignee: NSK Ltd
•
Filing: 1970-02-03
•
Granted: 1971-10-19
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Expires: 1990-02-03
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Abstract

Abstract THE CONSTANT-VELOCITY UNIVERSAL JOINT CONSISTS OF AN INNER AND OUTER JOINT MEMBER. THE INNER JOINT MEMBER HAS TWO CONICAL SURFACES ON THE OUTER SURFACE THEREOF, WHILE THE OUTER JOINT MEMBER HAS TWO CONCIAL SURFACES ON THE INNER SURFACE THEREOF. EACH CONICAL SURFACE ON THE INNER JOINT MEMBER IS FACED TO EACH CONICAL SURFACE ON THE OUTER JOINT MEMBER. THE FACING CONICAL SURFACES INCLINE RELATIVE TO THE AXIAL CENTER LINE OF THE TWO MEMBERS BY AN ANGLE ONE-HALF OF THE JOINT ANGLE A, AND THE INTERSECTION LINE OF EACH PAIR OF FACING CONICAL SURFACES IS ON A PLANE PERPENDICULAR TO THE AXIAL CENTER LINE (FIG. 1). BY THIS ARRANGEMENT, THE BALLS CAN BE RETAINED WITHIN THE GUIDE GROOVES AND THE BOTH JOINT MEMBERS CAN BE INCLINED WITHIN THE THE JOINT ANGLE.

Inventors

  • 👤 Hideo Okoshi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 10:00
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/20; F16D3/22; F16D3/223; F16D3/226; F16D3/227; F16D3/229; F16D2003/22303; Y; Y10; Y10S; Y10S464/00; Y10S464/904; Y10S464/906

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1974-10-18 1975-04-19 1975-10-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-10-18 1979-04-19 1979-10-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-10-18 1983-04-19 1983-10-19 $7700.00 Window Closed / Lapsed

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