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. 13, 1981
Filed:
Jan. 02, 1979
Applicant:
Inventor:
Thomas L Blose, Houston, TX (US);
Assignee:
Hydril Company, Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 92 ; 285334 ; 411265 ;
Abstract
A cylindrical threaded connector is provided with a small amount of taper to produce a controlled radial interference to prevent inadvertent thread disengagement. The threaded connector is especially suited for use with radial clearance cylindrical threads subjected to tensionload such as tubular goods used in wells. The taper can be used on either or both threads of two step cylindrical threads.