The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 1980
Filed:
Apr. 04, 1979
Applicant:
Inventor:
Alan F Moore, Burbage, GB;
Assignee:
Dunlop Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; F16D / ;
U.S. Cl.
CPC ...
403203 ; 403221 ; 403225 ; 403228 ; 64 2 / ;
Abstract
In a resilient coupling of the kind comprising an inner shaft nested concentrically within an outer shaft by means of a sleeve unit of elastomeric material for transmission of torque between the shafts there is provided a buffer unit mounted within the outer shaft to transit torque between the shafts only when a certain degree of torsional deflection is exceeded by the sleeve unit.