Linear actuator

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12259029
APP PUB NO 20240117866A1
SERIAL NO

18462555

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A linear actuator has a screw drive having a threaded nut connected to an extension arm tube and a threaded spindle couplable to a motor. A first end of the spindle always projects into the tube and is connected to a piston which partitions an interior space formed by the tube into a first region on the side of the piston opposite to the nut and a second region on the side of the piston facing the nut. The regions are separated in a fluid-tight manner. The spindle is held in position since the nut comprises an annular piston that delimits an annular fluid space between a housing of the linear actuator and the tube in a fluid-tight manner, the hydraulically effective surface of which is the same size as that of the first region. The first region and the annular fluid space are fluidically connected by a switching valve.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 STUTTGART 70442

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goldbach, Michael Lohr A. Main, DE 15 60
Knoell, Marco Burgsinn, DE 4 0
Knoell, Reiner Burgsinn, DE 7 3

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