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. 23, 2018
Filed:
Oct. 26, 2011
Applicant:
Martin Bungter, Monchengladbach, DE;
Inventor:
Martin Bungter, Monchengladbach, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B30B 1/32 (2006.01); B21D 7/06 (2006.01); B25B 27/10 (2006.01); B25F 5/00 (2006.01); B25B 27/00 (2006.01); H01R 43/042 (2006.01); B21J 15/20 (2006.01); B30B 1/42 (2006.01); B21D 39/04 (2006.01); B21J 15/26 (2006.01); B30B 15/16 (2006.01);
U.S. Cl.
CPC ...
B25B 27/10 (2013.01); B21D 39/04 (2013.01); B21J 15/20 (2013.01); B21J 15/26 (2013.01); B25B 27/00 (2013.01); B25F 5/005 (2013.01); B30B 1/326 (2013.01); B30B 1/42 (2013.01); B30B 15/166 (2013.01); H01R 43/0427 (2013.01); Y10T 29/53226 (2015.01);
Abstract
A hydraulic pressing tool which is particularly suitable for pressing pipe fittings, and which has a hydraulic pump connected to an electric motor is provided. With the aid of the hydraulic pump, hydraulic fluid is pumped from a tank into a piston chamber to operate the hydraulic piston. The pressure prevailing in the piston chamber is determined by a pressure sensor. When a pressure limit is reached, a solenoid valve is opened by the control device such that the hydraulic fluid flows back out of the piston chamber, through the channels, and into a reservoir.