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:
Jan. 04, 2022
Filed:
Nov. 07, 2019
Applicant:
Von Arx Ag, Sissach, CH;
Inventors:
Matthias Ruch, Efringen-Kirchen, DE;
Rudolf Kreuzer, Buchs, CH;
Assignee:
Von ARX AG, Sissach, CH;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 7/00 (2006.01); F01L 1/18 (2006.01); B25B 27/02 (2006.01); B21D 39/04 (2006.01); B25B 28/00 (2006.01); F16D 41/064 (2006.01);
U.S. Cl.
CPC ...
B25B 27/026 (2013.01); B21D 39/048 (2013.01); B25B 28/00 (2013.01); F01L 1/185 (2013.01); F04B 7/0057 (2013.01); F04B 7/0065 (2013.01); F04B 7/0069 (2013.01); F16D 41/064 (2013.01); F15B 2211/275 (2013.01); F15B 2211/50518 (2013.01); F15B 2211/633 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6323 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/76 (2013.01); F15B 2211/7716 (2013.01);
Abstract
A pressing tool is described for plastically deforming a workpiece. The pressing tool comprises a piston pump driven by a motor that rotates in operating rotation direction RA and a pressure release valve and a coupling arrangement, which mechanically couples the motor to the pressure relief valve, so that the motor opens the pressure relief valve when operated in a loosening rotation direction RL opposite to the operating rotation direction RA. Also described is a corresponding method of operating a pressing tool.