Vehicle suspension system using viscous tension dampers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 18, 2004
Grant Date -
May 8, 2003
app pub date -
Nov 6, 2001
filing date -
Nov 6, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pair of tension cables are positioned around cams attached to the lower control arms of a vehicle suspension. Each tension cable includes a tension damper responsive to tension in the tension cables. Each tension damper includes a cylinder containing a fluid and a piston including at least one orifice attached to a rod. The piston divides the cylinder into a first and second compartment. The rod in connected to the tension cable. When the tension cable pulls on one end of the rod, the piston is pulled towards the tension cable. The fluid creates resistance in the tension damper as the fluid moves through the orifice from one compartment to the other compartment, damping vehicle roll. Control of the tension dampers can be passive, semi-active, or active.
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 | |
---|---|---|
MERITOR LIGHT VEHICLE TECHNOLOGY LLC | 2135 WEST MAPLE ROAD TROY MI 48084 |
International Classification(s)

- 2001 Application Filing Year
- B60G Class
- 248 Applications Filed
- 100 Patents Issued To-Date
- 40.33 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Carlstedt, Robert P | Rochester Hills, MI | 31 | 372 |
# of filed Patents : 31 Total Citations : 372 | |||
Chamberlin, James B | Charlotte, NC | 20 | 286 |
# of filed Patents : 20 Total Citations : 286 | |||
Cubalchini, Jr Joseph | St. Charles, IL | 5 | 70 |
# of filed Patents : 5 Total Citations : 70 | |||
Downey, Doyle R | Beverly Hills, MI | 10 | 128 |
# of filed Patents : 10 Total Citations : 128 | |||
Kramer, Dennis A | Troy, MI | 93 | 1491 |
# of filed Patents : 93 Total Citations : 1491 | |||
Ledesma, Ragnar H | Sterling Heights, MI | 13 | 258 |
# of filed Patents : 13 Total Citations : 258 | |||
Saxon, Nancy L | Oakland Township, MI | 21 | 284 |
# of filed Patents : 21 Total Citations : 284 | |||
Williams, Monte G | Royal Oak, MI | 21 | 240 |
# of filed Patents : 21 Total Citations : 240 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- B60G Class
- 1.05 % this patent is cited more than
- 21 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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jun 18, 2012 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
May 18, 2012 | FP | EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: May 18, 2012 |
May 18, 2012 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 02, 2012 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Oct 19, 2007 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Aug 10, 2004 | CC | CERTIFICATE OF CORRECTION | |
May 18, 2004 | I | Issuance | |
May 08, 2003 | P | Published | |
Nov 06, 2001 | F | Filing | |
Nov 06, 2001 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CARLSTEDT, ROBERT P.;CHAMBERLIN, JAMES B.;LEDESMA, RAGNAR H.;AND OTHERS;REEL/FRAME:012327/0139;SIGNING DATES FROM 20010901 TO 20011026 Owner name: MERITOR LIGHT VEHICLE TECHNOLOGY, LLC, MICHIGAN |

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