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:
Aug. 09, 1988
Filed:
Jul. 07, 1986
Applicant:
Inventor:
Frank R Kinnan, Camas Valley, OR (US);
Assignee:
L & F Company, Camas Valley, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 89 ; 220235 ;
Abstract
A plug assembly for sealing a conduit. The assembly includes an annular, deformable sealing member, bound by an inner surface that includes opposed convexly curved surface portions. Opposed disks, each having an annular boundary edge, are positioned with the boundary edges of the disks underlying the inner surface portions of the sealing member. These disks are drawn together to produce radial expanding of the sealing member in regions where the member overlies the disks.