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:
Jan. 05, 1993
Filed:
Sep. 30, 1991
Yuri Ackerman, Chicago, IL (US);
Chicago Rawhide Manufacturing Co., Elgin, IL (US);
Abstract
A composite drain plug comprising a metal plug element and an elastomeric seal element. The plug element includes a body with a head portion defined in part by exterior, tool-engaging flank surfaces, a radially enlarged, seal positioning flange with an outer diameter surface and a seal-engaging end face surface. The plug also includes a threaded fastening shank, and a depth stop shoulder with a radial end face surface and an axial offsetting surface. The elastomeric seal element includes a seal body integrally bonded to the positioning flange and to offsetting shoulder surface on said depth stop. The seal body also includes a radially extending, axially inwardly directed end face primary sealing surface, lying axially inwardly of the end face of the depth stop.