Friction dampener particularly adapted to railway vehicle motion control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 4, 2002
Issued Date -
N/A
app pub date -
Apr 6, 2001
filing date -
Feb 26, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A friction dampener can include a housing having one end slidably surrounding one end of a shaft movable relative thereto. Opposing ends of the housing and shaft can each having a connecting eye member for connection to separate independently movable elements. One or more friction elements can be carried by the shaft which frictionally engage inner surfaces of the housing. The friction elements can have inner and outer portions having different material properties. The housing can be adapted to generally maintain the pressure between the friction elements and the housing within a range of desirable pressures.
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 | |
---|---|---|
KASGRO RAIL CORP | NEW CASTLE PA |
International Classification(s)

- 2001 Application Filing Year
- F16F Class
- 403 Applications Filed
- 154 Patents Issued To-Date
- 38.22 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Wiebe, Donald | Sewickley, PA | 16 | 457 |
# of filed Patents : 16 Total Citations : 457 |
Cited Art Landscape
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Patent Citation Ranking
- 8 Citation Count
- F16F Class
- 1.17 % this patent is cited more than
- 23 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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