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. 12, 1989
Filed:
Sep. 06, 1988
Frank R Kinnan, Camas Valley, OR (US);
Conductron Corporation, Milford, NH (US);
Abstract
The invention deals with a device and method of using such device to seal the duct about an elongate object such as a pipe or cable extending therethrough into a sewer, cable vault or the like. The device consists of two or more collars of a conforming and compressible material, such as sponge rubber, in a cylindrical shape and having a reinforcing nylon tube extending axially therethrough. Each collar is formed about the elongate object and placed within the duct. Compression bands are placed about the collars to compress them in the direction of the elongate object and expand them each in planes perpendicular thereto to more completely engage the outer surface of the elongate object and the inner surface of the duct. A compliant sealing material may be placed upon one interior face of one of the collars to be spread and extruded beyond the collar periphery to better seal to the elongate object and duct. Multiple collars and sealant layers may be used to improve the seal which is the same text but presented as a single paragraph.