Cam mechanism for translation of circular motion into reciprocal motion
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 2, 2004
Grant Date -
N/A
app pub date -
Jan 28, 2000
filing date -
Jan 28, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cam mechanism for use in a mowing machine. The cam mechanism is comprised of a spur gear and protruding eccentric cams from the top and bottom surfaces of the spur gear. The cam mechanism is formed from a half blanking press process. The eccentric cams are symmetrically formed around a shaft hole located in the center of the spur gear. Members with a hole equaling that of the eccentric cam and shaft hole point symmetry are then fitted onto the eccentric cam. The members are then capable of reciprocation with a phase differential of 180 degrees of each other. The concave portion of the eccentric cam permits lubricants to be filled in the space facilitating the smooth operation of the cam mechanism.
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 | |
---|---|---|
SHIN-DAIWA KOGYO CO LTD | 10-23 EBAMINAMI 2-CHOME NAKA-KU HIROSHIMA | |
DELTA KOGYO CO LTD | AKI-GUN HIROSHIMA 735-8501 |
International Classification(s)

- 2000 Application Filing Year
- A01D Class
- 253 Applications Filed
- 125 Patents Issued To-Date
- 49.41 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Akehi, Youso | Hiroshima, JP | 1 | 27 |
# of filed Patents : 1 Total Citations : 27 | |||
Nomura, Fumio | Hiroshima, JP | 19 | 54 |
# of filed Patents : 19 Total Citations : 54 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 27 Citation Count
- A01D Class
- 87.01 % this patent is cited more than
- 21 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 |
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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 |
---|---|---|---|
Mar 04, 2013 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 03, 2013 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 03, 2013 |
Feb 03, 2013 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Sep 17, 2012 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 03, 2009 | I | Issuance | |
Aug 14, 2008 | P | Published | |
Mar 08, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SELLE, STEPHEN R.;REEL/FRAME:019032/0577 Owner name: STAFAST PRODUCTS, INC., OHIO Effective Date: Mar 08, 2007 |
Feb 09, 2007 | F | Filing | |
Feb 09, 2007 | PD | Priority Date |

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