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. 13, 2014
Filed:
Feb. 01, 2011
Toshiyuki Sato, Shiga, JP;
Taihei Yokoyama, Shiga, JP;
Toshiyuki Sato, Shiga, JP;
Taihei Yokoyama, Shiga, JP;
Suiken Co., Ltd., Shiga, JP;
Abstract
An apparatus including: a sealing casehaving a branch-shaped branch holeformed in a first separate caseand extending in the radial direction C of an existing pipe; and a rubber packingfor sealing a gap between the sealing caseand the existing pipe, wherein: the first separate caseis provided with a flangefor allowing for attachment and removal of a boring machine; the sealing caseis capable of reciprocating in the pipe axis direction L; and the rubber packingforms: a first sealed area Ssurrounding a portion of the sealing casewhere the branch holeis provided for shutting the branch hole; and a second sealed area Sbeing adjacent to the first sealed area S, sealed against the first sealed area S, displaced from the first sealed area Sin the pipe axis direction L, and sized so as to be able to shut the opening bored by a cutter