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. 11, 1978
Filed:
Apr. 12, 1977
Rudolf Breher, Porta Westfalica, DT;
BRECO Kunststoffverarbeitungs-GmbH & Co. KG, Porta Westfalica, DT;
Abstract
A continuous process for making endless toothed belts using a reinforced toothed belt preform of indefinite length by spirally winding the preform around toothed wheels spaced a variable distance while fusing the spiral wraps into a belt tube. One of the wheels forms a closed arc shaped mold chamber sealed toward the outside by a molding belt with one end of the chamber sealingly closed by the entering length with the laterally exiting flexible length or tube advancing axially through the other end and cut to the desired width to form individual belts. The circumferential length is varied by varying the distance between the wheels. The preform can be accurately formed from an unfinished belt by fusing around the fixed radial distance supported reinforcement using wheels in cooperation with a closed chamber prior to forming the tube.