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, 2017
Filed:
Feb. 17, 2016
Suiken Co., Ltd., Shiga, JP;
Yasunari Sato, Shiga, JP;
Toshihiko Shimizu, Shiga, JP;
SUIKEN CO., LTD., Shiga, JP;
Abstract
An apparatus including: a sealing case having a branch hole formed in a first separate case and extending in the radial direction of an existing pipe; and a rubber packing for sealing a gap between the sealing case and the existing pipe, wherein: the first separate case has a flange for attachment and removal of a boring machine; the sealing case reciprocates in a pipe axis direction; the rubber packing forms; a first sealed area surrounding a portion of the sealing case for shutting the branch hole; a second sealed area being adjacent to, sealed against, displaced from the first sealed area in the pipe axis direction, and sized so as to be able to shut the opening bored by a cutter; and a tolerance space, into which a second seal ring escapes, is formed between a packing attachment groove and the second seal ring.