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. 01, 1985
Filed:
Nov. 01, 1982
James M Walker, Houston, TX (US);
Dril-Quip, Inc., Houston, TX (US);
Abstract
There is disclosed apparatus for releasably connecting first and second tubular members in end-to-end relation including a split lock ring having first and second axially spaced locking teeth which are carried by the first member for radial movement together being expanded positions opposite from first and second locking grooves about the first and second members, respectively, and contracted positions in locking engagement with such grooves, and a cam ring which surrounds the lock ring for movement between a first position in which the lock ring is expanded and a second position in which the cam ring is slidable over follower means on the lock ring to wedge said lock ring into expanded position.