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:
Oct. 20, 1987
Filed:
Dec. 23, 1985
Applicant:
Inventor:
Norman C Fawley, Long Beach, CA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138172 ; 138178 ;
Abstract
A crack arrestor for a pipe is in the form of a clock spring defined by a spiral band of high tensile strength material having an elasticity maintaining the band in contact with the pipe. A method for making the crack arrestor includes saturating high tensile strength filaments with a resin, winding the saturated filaments around a mandrel in a plurality of convolutions, and establishing an elastic set in the convolutions by curing the resin.
Fawley, Norman. (1987). Clock spring crack arrestor (U.S. Patent No. 4700752). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4700752
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile