Steering assistance pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1986
Grant Date -
N/A
app pub date -
Feb 27, 1985
filing date -
Mar 3, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A steering assistance pump includes a temperature sensor valve which communicates with an inlet duct of the pump by way of an additional, normally closed outlet passage. When a pressure relief valve responds, upon blocking of the servo steering means, the temperature of the hydraulic fluid in the system increases to such a degree that it exceeds the limit value of the temperature sensor valve. The valve thus opens to cause the pilot control pressure in the control chamber of the pressure relief valve to be reduced, whereby the pump pressure itself is also reduced.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VICKERS SYSTEMS GMBH | D-61348 BAD HOMBURG |
International Classification(s)

- 1985 Application Filing Year
- F04C Class
- 117 Applications Filed
- 0 Patents Issued To-Date
- 0 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kruger, Heinz | Usingen, DE | 4 | 6 |
# of filed Patents : 4 Total Citations : 6 | |||
Schulz, Rene | Neu-Anspach, DE | 32 | 217 |
# of filed Patents : 32 Total Citations : 217 | |||
Staemmler, Erwin | Kronberg, DE | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Teubler, Heinz | Friedrichsdorf, DE | 5 | 40 |
# of filed Patents : 5 Total Citations : 40 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F04C Class
- 0 % this patent is cited more than
- 39 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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