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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.:

US 4647716 B1

PDFFull Text
Date of Patent:
Mar. 03, 1987

Filed:

Nov. 06, 1984

Article having heat expandable sealing member

Applicant:
Inventors:

James K Akiyama, Mountain View, CA (US);

Klaus D Freysing, San Jose, CA (US);

Richard A Young, Cupertino, CA (US);

Assignee:

Sigmaform Corporation, Santa Clara, CA (US);

Attorney:

Limbach, Limbach & Sutton

Primary Examiner:

Arthur T Grimley

Assistant Examiner:

Morris H Nimmo

Int. Cl.
CPC ...
H02G / ; F16B / ;
U.S. Cl.
CPC ...
174 / ; 156 52 ; 156 79 ; 156 86 ; 1741 / ; 174D / ; 264 466 ; 264 467 ; 264 469 ; 264230 ; 264D / ; 403273 ;
Abstract

An article comprising a generally axially extending outer, tubular member, a plurality of generally axially extending cylindrical members, and a heat expandable foam sealing member. The outer tubular member has at least one opening and occupies a predetermined volume. Each of the cylindrical members is received by outer tubular member in an axially extending, parallel fashion such that the cylindrical members occupy a volume that is less than the volume of the outer tubular member. The sealing member, capable of sealing the opening of outer tubular member, occupies a volume that is generally equal to the difference between the volume of the outer tubular member and the volume of the cylindrical members.

Find Patent Forward Citations

Akiyama, James. (1987). Article having heat expandable sealing member (U.S. Patent No. 4647716). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4647716

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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