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. 16, 1979
Filed:
May. 11, 1977
Applicant:
Inventors:
Franklin E Davidson, Conroe, TX (US);
Lee E Pearson, Conroe, TX (US);
Assignee:
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B29D / ; B29D / ;
U.S. Cl.
CPC ...
138109 ; 138173 ; 264271 ; 264275 ; 264328 ; 285291 ; 285351 ; 425127 ; 4251 / ; 425812 ; 425D / ;
Abstract
A pipe section is mounted in a horizontal position and upper and lower halves of a spigot ring mold are clamped to the spigot end. The lower mold half is provided with a port for receiving a nozzle of a hardenable liquid resin supply hose and the upper mold half is provided with vents. Resin is forced into the mold under pressure until some comes out of the vents. After the resin is hardened, the mold is removed.