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:
Feb. 10, 1987
Filed:
Aug. 15, 1985
Applicant:
Inventors:
David J Vlasek, Universal City, TX (US);
Harry W Riddle, San Antonio, TX (US);
Assignee:
Baker Oil Tools, Inc., Orange, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B21D / ;
U.S. Cl.
CPC ...
228155 ; 72393 ;
Abstract
A conduit centralizer comprises segmented, sliding upper and lower collars connected by a plurality of axially extending, outwardly bowed leaf springs. Each collar is formed by the hinged connection on a plurality of segments in close fitting contact with the outer diameter of a pipe. The ends of the leaf springs are respectively inserted within the individual segments and welded to the segments. Individual collar segment sections or subassemblies comprising upper and lower collar segments secured to a single intermediate bowed leaf spring can then be interconnected to form a concentric centralizer.