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:
Aug. 16, 1983
Filed:
Mar. 12, 1982
Andron T Karavaev, Novosibirsk, SU;
Vladimir D Plavskikh, Novosibirsk, SU;
Alexei D Terskov, Novosibirsk, SU;
Anatoly V Sukhushin, Novosibirsk, SU;
Nikolai P Chepurnoi, Novosibirsk, SU;
Evgeny N Cherednikov, Novosibirsk, SU;
Abstract
A specific feature of the apparatus according to the invention which incorates a percussion unit to a tail piece whereof there is attached a rope connecting to a means of extracting is that fitted into said tail piece coaxially therewith and with a clearance is a ring, the clearance between said ring and said tail piece containing a resilient member with passages reeved wherethrough are the ends of the rope and the inside surface of said tail piece being provided with stops in the body whereof there are also passages for reeving the ends of the rope.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile