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:
Dec. 04, 2007
Filed:
Sep. 01, 2005
Klaus-jürgen Winter, Wetter, DE;
Klaus-Jürgen Winter, Wetter, DE;
Demag Cranes & Components GmbH, Wetter, DE;
Abstract
The invention concerns a safety brake mechanism for the winding drum () of a hoisting machine that can be driven via a motor () with lifting gearbox (), which is substantially braked to a standstill without jerking when the lowering speed is excessive by a brake ring () that revolves concentrically with the winding drum () and is frictionally joined to the latter, when the brake ring () lying against a cylindrical brake surface () of the hoisting machine is locked. In order to allow for the grinding and adjusting of the necessary braking moment in the disconnected condition of the winding drum prior to the assembly of the complete lifting mechanism with low expenditure of material and cost, the brake surface () for the brake ring () may be provided on its outer circumference with a rigid coupling () that concentrically connects a lifting gearbox () and a winding drum (), to which the lifting gearbox () and winding drum () are removably connected.