Releasable drive mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 25, 1997
Grant Date -
N/A
app pub date -
Aug 30, 1994
filing date -
Aug 30, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A releasable drive mechanism is provided, having a sprocket and gear rotatable about a central axis, the gear being rotatably secured to a shaft extending along the central axis. The sprocket and the gear are each configured to provide a coplanar portion extending parallel with the central axis that interfaces the surface of the other. A clutch engageable with the sprocket and the gear is provided, having projections or keys being positionable between the interfacing surfaces for releasably coupling the sprocket and the gear for joint rotation. A lever is provided for disengaging the clutch and the clutch may be biased to facilitate engagement of the clutch. A clip may also be provided to prevent lateral movement of the sprocket on the shaft when the clutch is disengaged.
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 | |
---|---|---|
RICOH CORPORATION | LEGAL DIVISION 3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO JAPAN 143 3001 ORCHARD PARKWAY SAN JOSE CA 95134 |
International Classification(s)

- 1994 Application Filing Year
- F16D Class
- 589 Applications Filed
- 275 Patents Issued To-Date
- 46.69 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Rizkovsky, Roy R | Lake Elizabeth, CA | 2 | 40 |
# of filed Patents : 2 Total Citations : 40 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 20 Citation Count
- F16D Class
- 71.24 % this patent is cited more than
- 28 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 |
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