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:
Dec. 13, 1994
Filed:
Jun. 22, 1993
Jimmy W Tam, Plymouth, MN (US);
David J Thompson, Anoka, MN (US);
Graco Inc., Golden Valley, MN (US);
Abstract
The nozzle swivel joint includes two couplings which are joined together at mutually flat interface surfaces. Each coupling has an axial flow passage, and the two couplings are held together in mutually rotatable position by a manifold with a threaded end; the manifold having inlet and outlet ports respectively aligned to the flow passages in the couplings. The manifold is sealably affixed to one of the couplings, with a gasket forming a seal about the threadable manifold. An O-ring is compressed between the respective flat interface surfaces to provide a limited friction seal for restricting relative rotation between the couplings, while at the same time permitting rotation to occur with a limited amount of force.