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:
May. 30, 1978
Filed:
Apr. 06, 1977
Applicant:
Inventor:
Joe C McCaslin, Houston, TX (US);
Assignee:
Zap-Lok Systems International, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72121 ; 72123 ; 72124 ;
Abstract
Apparatus for grooving the pin end of a pipe for use in a mechanical pipe joint of the pin and bell variety, and methods of forming a groove in a pin end, wherein the apparatus includes rollers for contacting the internal and external surfaces of a pipe and the rollers are rotatable as a pair of rollers about the axis of the pipe and are cooperable to groove and form the end of a pipe to the configuration of the rollers.