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:
Apr. 17, 2007
Filed:
Dec. 15, 2003
Toru Kasai, Tokyo, JP;
Makoto Okamoto, Tokyo, JP;
Shuntaro Kuriyama, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
An apparatusfor continuously forming an FRP square pipe comprises a long corefor laminating prepreg sheets, and to this coreare fed prepreg sheets from prepreg laminating devicesandwith a release film interposed between the core, so as to be laminated into square pipe form. The corehas an outer diameter size smaller than the inner diameter size of the square pipe to be formed. The outer circumference of the square pipe is wrapped with a tape-like film fed from a tape-like release film wrapping devicein spiral fashion, and the work is heated and pressed in a hot pressThe work is then subjected to additional heating in a postcure furnaceto form the FRP square pipe. The square pipe is intermittently pulled by a pullerdisposed downstream of a clampThe pipe is then cut to predetermined lengths by a cutter not shown to be completed as a product.