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. 27, 1987
Filed:
Dec. 17, 1984
Alan Johnson, Sunderland, GB;
British Gas Corporation, London, GB;
Abstract
A coupling device (1) for use with an electrofusion fitting (14) so as to identify the fitting and to provide an indication of the period of time for which such fittings should be electrically energized to provide a satisfactory bond to thermoplastic pipes, the device comprising relatively rotatable parts (2) and (3) which are brought into register with fixed identification locations (18) and (19) on the fitting, and when in register automatically select an electrical parameter which is representative of that particular fitting and the energization period required.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile