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. 08, 2014
Filed:
Aug. 02, 2007
Applicant:
Harald Weigelt, Kürten, DE;
Inventor:
Harald Weigelt, Kürten, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 9/18 (2006.01); B30B 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a wedge drive () with a first part () which can be provided with a machining tool and a second part (), wherein the two parts () are arranged movably relative to each other, and there is provided at least one positive-action return device which engages or can engage both parts (), and a third part () which is connected to the first part (), the at least one positive-action return device is return spring-free and has at least one device for causing and/or supporting the return of the one part () and/or for increasing the retraction force which can be applied in the return of the one part () in the upward stroke movement of the third part ().