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. 22, 2002
Filed:
Sep. 30, 1998
Abstract
A reinforcement fitting provides shrinkage and expansion capabilities while maintaining sealability at the connection between existing pipes. The reinforcement fitting includes an externally fitting portion with an inside diameter that can fit over the existing pipes, a contact member installed in a recessed portion formed on the inside of the externally fitted portion having a tapered contact surface and a contact portion to contact with an outer surface of one of the existing pipes wherein contact resistance with one of the existing pipes increases when an external force is exerted in the direction to separate the existing pipes, an engagement portion which is able to engage with a flange portion of the other existing pipe when the external force is exerted in the direction to separate the existing pipes, and a cut out portion formed at an outer side of the reinforcement fitting for establishing a clearance for a protruded portion used in connecting the existing pipes.