Magneto- and electro-rheological based actuators for human friendly manipulators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 14, 2017
Grant Date -
Apr 23, 2015
app pub date -
Sep 30, 2014
filing date -
Oct 9, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods relating to a clutch system for use in controllably transmitting torque from an input shaft to an output shaft. The clutch system has a torque transmission fluid that has a viscosity that changes based on the strength of an electromagnetic field passing through the fluid. A number of sensors are placed at different radial locations on the torque transmission disks to detect the strength of the electromagnetic field. Based on the strength of the electromagnetic field, the amount of torque being transmitted from the input shaft to the output shaft can be adjusted. Also disclosed is a distributed actuation architecture that uses this clutch system. The distributed actuation architecture allows for the use of a single drive motor in conjunction with multiple instances of the clutch system to actuate a mechanical linkage, such as a robotic arm.
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 | |
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THE UNIVERSITY OF WESTERN ONTARIO | LONDON ONTARIO N6G 4X8 |
International Classification(s)

- 2014 Application Filing Year
- G06F Class
- 51669 Applications Filed
- 44228 Patents Issued To-Date
- 85.60 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kermani, Mehrdad | London, CA | 2 | 13 |
# of filed Patents : 2 Total Citations : 13 | |||
Shafer, Alex | Thornhill, CA | 13 | 100 |
# of filed Patents : 13 Total Citations : 100 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- G06F Class
- 14.60 % 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 |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 14, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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

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Feb 14, 2017 | I | Issuance | |
Jan 25, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 23, 2015 | P | Published | |
Oct 03, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KERMANI, MEHRDAD;SHAFER, ALEX;SIGNING DATES FROM 20140926 TO 20140930;REEL/FRAME:033879/0619 Owner name: THE UNIVERSITY OF WESTERN ONTARIO, CANADA |
Sep 30, 2014 | F | Filing | |
Oct 09, 2009 | PD | Priority Date |

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