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:
Feb. 18, 1986
Filed:
Apr. 24, 1984
Norbert Mucheyer, Rechtenbach, DE;
Mannesmann Rexroth GmbH, , DE;
Abstract
The position control and force control of a device mounted to a tractor, in particular for controlling the depth penetration of a plough, is supplemented by a lowering speed-responsive control to limit the lowering speed to a predetermined maximum value in order to increase safety of operation. Activating and disabling the lowering speed signal takes place in response to operating a mode select switch provided for the position control and force control as well as in response to a high-speed actuation of the mounted device. Furthermore, the lifting and lowering function of the hydraulic jack of the mounted device may be locked to prevent undesired motions of the mounted device when the system is put in operation.