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:
Apr. 16, 1985
Filed:
Aug. 30, 1983
Thomas E Cook, Kalamazoo, MI (US);
Durametallic Corporation, Kalamazoo, MI (US);
Abstract
A mechanical seal construction employing a one-piece plastics packing ring of relatively rigid material for creating a sealed relationship between the nonrotatable seal ring and the stuffing box or gland. The packing ring has a main substantially rectangular body portion which defines an inner annular surface of substantial axial extent, which inner surface has a light interference fit with an opposed surface on the nonrotatable seal ring. A thin ringlike rib is integral with and externally surrounds the main body portion and projects radially outwardly therefrom, which rib is disposed in the axially central plane of the main body portion. This rib has the radially outer end or edge surface thereof maintained in a light interference fit with an opposed surrounding surface as defined on the gland or stuffing box. The seal areas are defined adjacent the axial end surfaces of the main body portion, one of which engages an opposed surface on the nonrotatable seal ring, and the other of which engages an opposed surface on either the gland or stuffing box.