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:
Oct. 08, 1991
Filed:
May. 09, 1990
Toshio Akesaka, Yokohama, JP;
Takashi Ogawara, Funabashi, JP;
Abstract
The present invention relates to an inside processing apparatus for performing operations of cleaning, grinding, cutting and the like toward an inside of piping of a water pipe, a gas pipe, a wire pipe and the like. The said inside processing apparatus is constituted by possessing a working head having the working member (tool) for performing a fixed work on the cylindrical wall surface, a driving mechanism for moving the said working member in the circumferential direction of the cylindrical wall surface and a cutting controlling mechanism for controlling a quantity of the movement in company with a fact that the said working head is moved in the radial direction of cylindrical wall surface by the said driving mechanism.