Torque limiter
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United States of America Patent
Stats
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Sep 28, 2021
Grant Date -
Feb 11, 2021
app pub date -
Jan 9, 2019
filing date -
Feb 1, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
In a torque limiter of the present invention, a difference is provided between a maximum static frictional force between the coil spring and the first outer circumferential surface and a maximum static frictional force between the coil spring and the second outer circumferential surface such that, when rotational torque in a direction of increasing the diameter of the coil spring and less than a predetermined value is applied to the first or second rotator, the first and second rotators integrally rotate via the coil spring, and one of the first and second rotators relatively rotates relative to the other of the first and second rotators together with the coil spring when the rotational torque is greater the predetermined value.
First Claim
Other Claims data not available
Family
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16D Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 28, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 28, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 28, 2033 |
