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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 4684430 B1

PDFFull Text
Date of Patent:
Aug. 04, 1987

Filed:

Jun. 28, 1983

Apparatus for fusibly interconnecting thermoplastic pipes

Applicant:
Inventors:

Takayuki Handa, Tokyo, JP;

Yasushi Takeuchi, Tokyo, JP;

Masumi Kato, Tokyo, JP;

Hisazi Seki, Tokyo, JP;

Assignee:

Mitsui Petrochemical Industries, Tokyo, JP;

Attorney:

Beveridge, DeGrandi and Weilacher

Primary Examiner:

Donald E Czaja

Assistant Examiner:

Merrell C Cashion, Jr

Int. Cl.
CPC ...
B29C / ; G05G / ;
U.S. Cl.
CPC ...
156366 ; 156368 ; 156378 ; 156391 ; 1563796 ; 156499 ; 156503 ; 228 445 ; 228 565 ; 269224 ;
Abstract

Thermoplastic pipes held by a pair of clamp mechanisms are fusibly interconnected. A torque wrench moves one clamp mechanism toward the other clamp mechanism and provides a signal when the force applied is a given value. A locking mechanism is operated in response to this signal to lock the torque wrench in position. The apparatus is programmed to release the locking mechanism at the end of a predetermined time period. Changes in the programmed conditions are effected in response to changes in the size of one of the clamp mechanisms.

Find Patent Forward Citations

Handa, Takayuki. (1987). Apparatus for fusibly interconnecting thermoplastic pipes (U.S. Patent No. 4684430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4684430

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

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