Forestry winch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12049391
APP PUB NO 20220259018A1
SERIAL NO

17670568

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A forestry winch may include a rope drum driven by a drive motor, wherein a rope is wound up on the rope drum, wherein the rope drum is functionally connected with a brake device, wherein the brake device is in the form of a spring-loaded brake which is impinged by a spring device toward a braking position and by a hydraulic brake release pressure present in a brake release pressure line toward a release position, wherein the drive motor is in the form of a hydraulic motor which is connected by a first pressure medium line and a second pressure medium line to a multi-port control valve device controlling the drive motor, and a bypass valve device connecting the first and second pressure medium lines and is located in a connecting line connecting the first and second pressure medium lines and has a closed position and a flow position.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
WELSCHOF BERNWARDROSEGGERSTRASSE 2A GROSSOSTHEIM 63762

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hofmann, Claus Haibach, DE 14 86
Welschof, Bernward Grossostheim, DE 22 98
Willenbücher, Michael Oberzent, DE 10 2

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