Shock-absorbing winch
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United States of America Patent
Stats
-
Nov 6, 1984
Grant Date -
N/A
app pub date -
Feb 14, 1983
filing date -
Feb 16, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shock-absorbing winch comprising a drive shaft reversibly rotatable by a drive unit and having a cylindrical outer peripheral surface, a hollow winch drum surrounding the drive shaft and forming a cylindrical hollow space therein around the outer peripheral surface of the drive shaft, a first stopper fixed to the outer peripheral surface of the drive shaft at a suitable location in the circumferential direction thereof, a second stopper fixed to the inner peripheral surface of the winch drum at a suitable location in the circumferential direction thereof and dividing the cylindrical space into first and second circular arc compartment between the first and second stoppers, a first shock absorber disposed in the first compartment, and a second shock absorber disposed in the second compartment. Since the winch does not require provision of another shock absorber independently thereof, the winch can be installed without the limitation that would be needed, for example, for rigging a ship.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DIRECTOR GENERAL TECHNICAL RESEARCH AND DEVELOPMENT INSTITUTE (TRDI) THE DEFENSE AGENCY A JAPANESE GOVERNMENT | 2-24 IKEJIRI 1-CHOME SETAGAYA-KU TOKYO | |
HITACHI ZOSEN CORPORATION A CORP OF JAPAN | 6-14 EDOBORI 1-CHOME NISHI-KU OSAKA |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Koshoji, Yoshihiro | Tokyo, JP | 1 | 2 |
Sato, Kenji | Maizuru, JP | 538 | 4969 |
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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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