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. 08, 1981
Filed:
May. 03, 1976
Samvel S Grigorian, Moscow, SU;
Mikhail I Korabelnikov, Moscow, SU;
Jury M Markov, Moscow, SU;
Alexandr A Shakhnazahov, Moscow, SU;
Eduard A Akopov, Moscow, SU;
Marina V Kameneva, Moscow, SU;
Other;
Abstract
A tapered screw joint with the thread profile whose bearing side is inclined at an angle of from about 86.degree. to about 98.degree. to the plane which is perpendicular to the thread axis. Such a tapered screw joint of parts makes it possible to disconnect them rapidly and repeatedly under the effect of axial tensile loads with subsequent reconnection under the effect of an applied torque. This screw joint will be used most effectively in a device for the emergency recovery of the boring tool from a borehole.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile