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. 14, 1982
Filed:
Mar. 03, 1980
Igor V Nikolaev, Moscow, SU;
Vladimir A Evpolov, Moscow, SU;
Lidia M Dronova, Ljubertsy Moskovskoi oblasti, SU;
Anatoly I Lednikov, Moscow, SU;
Mikhail A Moskvin, Moscow, SU;
Oleg Y Sutyagin, Sverdlovsk, SU;
Oleg A Yankovsky, Sverdlovsk, SU;
Viktor E Kilin, Sverdlovsk, SU;
Evgeny S Kolmyk, Sverdlovsk, SU;
Konstantin K Tupitsyn, Novosibirsk, SU;
Alexei M Makarov, Novosibirsk, SU;
Other;
Abstract
A pneumatic percussive tool has a barrel in which is inserted a hammer piston imparting blows at a working tool at regular intervals. A floating sleeve surrounding the working tool is provided in the front end portion of the barrel, the sleeve having a projection defining with a barrel groove a damping chamber communicating with a source of compressed gas. There is provided a shell rigidly secured to the barrel, which surrounds the sleeve so as to define in the zone of its projection an auxiliary damping chamber communicating with the source of compressed gas when the sleeve is in its lower position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile