Flow restrictor for solenoid valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 1992
Grant Date -
N/A
app pub date -
Jan 28, 1991
filing date -
Jan 28, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The flow restrictor is a unitary one-piece element that can be fabricated from either metal or plastic by casting or molding. In use, it is press fitted into a bore in a solenoid valve body to provide a certain restrictive effect. It has a circular cylindrical central core that has a series of flanges that are axially spaced by gaps. Each flange has a circular outer edge that is interrupted by at least one axially extending through-notch. These notches are arranged to provide a tortuous path for the fluid flow, and sized to create a desired restriction. The restrictor provides two parallel flow paths, one, the tortuous path just described, and two, a through-hole through the core of the restrictor.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIEMENS AUTOMOTIVE L P A LIMITED PARTNERSHIP OF DE | DE | |
SIEMENS AKTIENGESELLSCHAFT A CORP OF FEDERAL REPUBLIC OF GERMANY | Not Provided |
International Classification(s)

- 1991 Application Filing Year
- F16K Class
- 754 Applications Filed
- 295 Patents Issued To-Date
- 39.13 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bata, George T | Grafton, VA | 7 | 97 |
# of filed Patents : 7 Total Citations : 97 | |||
Schmitt-Matzen, Eric J | Gloucester, VA | 3 | 25 |
# of filed Patents : 3 Total Citations : 25 |
Cited Art Landscape
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Patent Citation Ranking
- 13 Citation Count
- F16K Class
- 0 % this patent is cited more than
- 33 Age
Forward Cite Landscape
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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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