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:
Oct. 25, 2011
Filed:
Apr. 22, 2010
Guogang Zhang, Zhenjiang, CN;
Mingqiang Wang, Zhenjiang, CN;
Guoqiang Ding, Zhenjiang, CN;
Zhejiang Nowvow Mechanical and Electrical Co., Ltd., Zhejiang, CN;
Abstract
A one-way load self-control spiral type brake, including a reel, two bearing frames on the reel, a brake shaft set between the two bearing frames, and two ends of the brake shaft connecting a transmission shaft. A front end of said brake shaft equipped with a fixing apparatus. Behind the fixing apparatus, a first inner friction piece, a first external friction piece, a second inner friction piece, a second external friction piece, an internal screw thread pressure plate, a tension spring, a connection piece and a brake shaft coupling are provided in sequential order around the brake shaft, and are fixed together by a socket and spigot joint. The inner friction piece and the brake shaft mesh. An external tooth is set on an outer circle of the external friction piece. A front end of the brake shaft coupling is fixed outside of an internal screw thread pressure plate.