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:
Apr. 16, 1996
Filed:
Aug. 25, 1994
Holger Seel, Aidlingen, DE;
Kurt Schaible, Aidlingen, DE;
Mercedes-Benz AG, , DE;
Abstract
An erector holds a leaf-flap in various opening settings relative to its frame, in particular for holding a motor-car hood. The erector has a continuously length-variable dynamic unit, which comprises, supported against the leaf-flap and frame, a hollow cylinder and a piston which is slidably guided in the hollow cylinder. The hollow-cylinder space is divided by the piston moved via a piston rod, into a two pressure-medium chambers which are overflow-connected, with a flow regulator being interposed therebetween. A control valve is disposed in one of two overflow ducts of the flow-regulator so that the assigned overflow duct, when the control valve is closed, is flow-blocked in both directions. The control valve is constantly flow-connected via a control duct to one of the pressure-medium chambers, and is acted upon by the pressure-medium column flowing through the control duct, so as to be transferred against a return force into a pass-through setting in which it is maintained up to a pressure level of the pressure-medium which is significantly lower than the control pressure of the control valve.