Hydraulic pressing tool and method for controlling a hydraulic pressing tool
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Oct 26, 2011
filing date -
Oct 28, 2010
priority date (Note) -
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status (Latency Note)
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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.
First Claim
Family
International Classification(s)
- B25B:TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR,....
- B21J:FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURN....
- H01R:ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL AS....
- B30B:PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED....
- B21D:WORKING OR PROCESSING OF SHEET METAL OR METAL TUBE....
- B25F:COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE P....
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