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:
May. 09, 1978
Filed:
Mar. 22, 1976
Alexandr D Kostvlev, Novosibirsk, SU;
Konstantin S Gurkov, Novosibirsk, SU;
Vladimir D Plavskikh, Novosibirsk, SU;
Vladimir V Klimashko, Novosibirsk, SU;
Leonid G Rozhkov, Novosibirsk, SU;
Vladimir A Grigoraschenko, Novosibirsk, SU;
Vasily V Filippov, Novosibirsk, SU;
Lazar M Lipovetsky, Novosibirsk, SU;
Valentin N Ardyshev, Novosibirsk, SU;
Khaim B Tkach, Novosibirsk, SU;
Other;
Abstract
A method of building underground pipelines by forming a casing in a hole from a forming material which is compacted in the direction from the center of the hole toward its walls. The hole is first filled with the forming material throughout its cross-sectional area and then the material is compacted in the direction towards the walls of the hole. Compaction is effected by a device comprising a rod-shaped body adapted for moving through the hole, the front end of the body being provided with a system of radial ribs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile