Hydrodynamic retarder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 26, 2017
Issued Date -
N/A
app pub date -
Jan 11, 2013
filing date -
Feb 3, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
There is provided a hydrodynamic retarder including a bladed rotor and a bladed stator jointly forming a working chamber to be filled with working medium and discharged therefrom, a working medium container receiving working medium, and a control pressure application system pressurizing the working medium with a control pressure medium to displace the working medium from the working medium container into the working chamber to set a desired braking torque. A centrifugal separator separating the working medium from the control pressure medium, the centrifugal separator is connected in a flow-conductive manner to an outlet of the working medium container for the control pressure medium to be pressurized with the control pressure medium, the centrifugal separator is driven by the pressure of the control pressure medium, and the working medium container is assembled from at least two shells, where the first and/or the second shell encloses the centrifugal separator.
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 | |
---|---|---|
VOITH PATENT GMBH | 89522 HEIDENHEIM |
International Classification(s)

- 2013 Application Filing Year
- B60T Class
- 820 Applications Filed
- 769 Patents Issued To-Date
- 93.79 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Laukemann, Dieter | Crailsheim, DE | 31 | 65 |
# of filed Patents : 31 Total Citations : 65 | |||
Martin, Alexander | Kressberg, DE | 76 | 682 |
# of filed Patents : 76 Total Citations : 682 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B60T Class
- 0 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 26, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 26, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
---|---|---|---|
Jul 10, 2017 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 11, 2017 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 11, 2017 |
Jun 11, 2017 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 19, 2017 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Jun 11, 2013 | I | Issuance | |
Aug 12, 2010 | P | Published | |
Feb 01, 2010 | F | Filing | |
Jan 27, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MUSCHALIK, UWE;STEINGIESSER, KLAUS;REEL/FRAME:023876/0519 Owner name: SMS MEER GMBH, GERMANY Effective Date: Jan 27, 2010 |
Feb 11, 2009 | PD | Priority Date |

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