Hydrostatic variable displacement pump which can be set in either direction of displacement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Feb 28, 2014
filing date -
Mar 13, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydrostatic variable displacement pump (2) has a displacement volume set by an electro-hydraulic control device (10) provided with a safety function. In a fault scenario, the variable displacement pump (2) is set to a neutral position. The electro-hydraulic control device (10) has a single electro-hydraulic setpoint encoder (30) to specify the setpoint of the displacement volume of the variable displacement pump (2) and an electrically actuatable valve device (35) connected in series downstream of the setpoint encoder (30), by which the direction of displacement of the variable displacement pump (2) is controlled and which is provided with the safety function.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LINDE HYDRAULICS GMBH & CO KG | 63741 ASCHAFFENBURG |
International Classification(s)

- 2014 Application Filing Year
- F04B Class
- 1041 Applications Filed
- 888 Patents Issued To-Date
- 85.31 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Jung, Markus | Aschaffenburg, DE | 54 | 121 |
# of filed Patents : 54 Total Citations : 121 | |||
Lasaar, Rolf | Grossostheim, DE | 2 | 3 |
# of filed Patents : 2 Total Citations : 3 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F04B Class
- 45.27 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
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Apr 06, 1998 | AS� | SECURITY INTEREST | free format text: SECURITY AGREEMENT;ASSIGNORS:NATIONAL FORGE COMPANY;NATIONAL FORGE COMPANY HOLDINGS, INC.;NATIONAL FORGE COMPONENTS, INC.;AND OTHERS;REEL/FRAME:009235/0572 Owner name: CHASE MANHATTAN BANK, THE, NEW YORK Effective Date: Apr 06, 1998 |
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Mar 12, 1990 | PD | Priority Date |

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