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:
Jul. 19, 1977
Filed:
Mar. 04, 1976
Anatoly Mikhailovich Petreev, Novosibirsk, SU;
Anatoly Alexeevich Lipin, Novosibirsk, SU;
Vladimir Davydovich Rabko, Novosibirsk, SU;
Gennady Ilich Suxov, Novosibirsk, SU;
Vladimir Ivanovich Kunegin, Kyshtym Chelyabinskoi oblasti, SU;
Alexandr Safronovich Kurdjukov, Kyshtym Chelyabinskoi oblasti, SU;
Other;
Abstract
A rock drill has a housing accommodating pistons defining working chambers. Rotary drive of a drill steel has an overrunning clutch and a screw pair. The screw pair is arranged between the pistons and is formed by outer and inner helical threads respectively provided on these pistons. One of the pistons is kinematically connected with the housing, and the other piston which cooperates, during the drilling, with a chuck receiving the drill steel shank is in force transmitting connection with the rotary drive of the drill steel. The invention is aimed at lowering vibration of the rock drill housing by arranging the screw pair of the rotary drive between the pistons.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile