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:
Mar. 12, 1991
Filed:
Nov. 30, 1989
Brian Hart, Wakefield, GB;
Cooper Industries, Inc., Houston, TX (US);
Abstract
An adjustable connection apparatus for joining tubular members including a first tubular member with a central bore, a counterbore on one end thereof, a flange on the other end thereof and external fine pitch grooves and ridges, a second tubular member with a central bore, a flange on one end thereof, a first reduced external diameter portion on the opposite end for insertion into said counterbore of said first tubular member, a second reduced diameter portion on the end of said first reduced diameter portion with external threads on the end of said second reduced diameter portion and external fin pitch grooves and ridges, clamping elements having internal fine pitch grooves and ridges for gripping engagement with the external grooves and ridges of said tubular members and means for securing the clamping elements together in gripping engagement with the tubular members to secure them into a joint having a preselected length and sealing means between the tubular members.