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:
Mar. 25, 2008
Filed:
Jun. 14, 2005
Masahiko Nohara, Tokyo, JP;
Norio Hiruma, Tokyo, JP;
Masahiko Nohara, Tokyo, JP;
Norio Hiruma, Tokyo, JP;
Tosetz Co. Ltd, Tokyo, JP;
Abstract
In order to provide a supply and exhaust pipe comprising a drop-off prevention mechanism, particularly effective for pipes with a large diameter, to increase bending strength and sealing efficiency, formation of a hemmed section A at an top edge of an insert portioncan eliminate the occurrence of buckling and increase bending strength. Furthermore, an O-ring for sealing can improve sealing efficiency and also can make itself follow a deformation of the pipe by forming it into a mushroom shape to establish close contacts to the pipe at two points, namely a neckand a part of the circumferenceof a cap. Furthermore, a drop-off prevention mechanism of the pipe has a wide sliding piece, and an arcwith a curvature adapted to the curvature of the pipe is formed on the lower surface of the sliding piece, to stabilize its sliding.