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.

Date of Patent:
Mar. 03, 1981

Filed:

Apr. 27, 1978
Applicant:
Inventor:

Gerald M Magarian, Long Beach, CA (US);

Assignee:

Ameron, Inc., Monterey Park, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
156175 ; 156425 ; 242-722 ; 2421571 ;
Abstract

Plastic pipe reinforced with rovings is produced by wetting the rovings with liquid resin and winding the wetted rovings onto a rotating mandrel from a carriage that moves to and fro along the length of the mandrel. The rovings are drawn onto the mandrel over a concavely arched surface mounted on the carriage. As the carriage reverses its direction at each end of the mandrel, the tilt of the concavely arched surface with respect to the carriage also reverses so the rovings always pass over the same section of the concavely arched surface. Apparatus for practicing this process is described.


Find Patent Forward Citations

Magarian, Gerald. (1981). Delivering roving for fabrication of plastic pipe (U.S. Patent No. 4253894). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4253894

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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