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:
Jul. 22, 2014
Filed:
Mar. 31, 2008
Matthias Geislinger, Salzburg, AT;
Cornelius Geislinger, Salzburg, AT;
Christof Sigle, Hallwang, AT;
Matthias Geislinger, Salzburg, AT;
Cornelius Geislinger, Salzburg, AT;
Christof Sigle, Hallwang, AT;
Ellergon Antriebstechnik Gesellschaft m.b.H., Hallwang, AT;
Abstract
A force-fitting clamping connection includes a first metal clamping surface, a second metal clamping surface, and a clamping element for clamping the clamping surfaces against one another. The first clamping surface forms a hardened fine surface structure with microreliefs and microdepressions. The second clamping surface has a lower hardness than the first clamping surface. Preferably, the first clamping surface is surface-treated by sand-blasting, shot-blasting or embossing before the hardening operation. This allows permanently high friction coefficient values between the clamping surfaces. A flange connection includes such a clamping connection for transmitting high torques.