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:
Jun. 20, 1978
Filed:
Jun. 18, 1975
Karl-Heinz Farber, Giengen, DT;
Rolf Mayer, Giengen, DT;
Bosch-Siemens Hausgerate GmbH, Munich, DT;
Abstract
The pressing machine includes a pressing ram, a drive arrangement for moving the ram from a starting position to an end-of-stroke position and back to the starting position and includes an electric drive motor. A control arrangement establishes the end-of-stroke position for the ram. The control arrangement includes a direction-reversing circuit connected to the drive arrangement for reversing the direction in which the drive arrangement moves the ram and includes a direction-reversing relay arrangement having a current path for activating current. A controllable electronic switch is connected to the activating current path for controlling the activation of the direction-reversing relay arrangement. A control-signal-generating circuit controls the conductivity of the electronic switch by generating and applying to the control input of the electronic switch a control signal dependent at least upon the loading of the drive motor.