Diaphragm type carburetor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 11, 2000
Grant Date -
N/A
app pub date -
May 18, 1998
filing date -
May 27, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention serves to facilitate atomization of fuel in a diaphragm type carburetor for all-purpose two-cycle engines. A check valve used to prevent back flow is installed in the fuel passage leading from a constant-fuel chamber to a main nozzle, and an air bleed passage is connected at a position on the downstream side of the check valve. The main nozzle is constructed by forming nozzle openings which face downstream with respect to the engine intake air flow. The nozzle openings are located in a tubular member which cuts across a central axial line of the venturi so that the tubular member bridges the neck of the venturi.
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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ZAMA JAPAN KABUSHIKI KAISHA | 2-154-14 OBUKE HACHIMANTAI-SHI IWATE 028-7111 |
International Classification(s)

- 1998 Application Filing Year
- F02M Class
- 602 Applications Filed
- 286 Patents Issued To-Date
- 47.51 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Toda, Mamoru | Iwate-ken, JP | 14 | 92 |
# of filed Patents : 14 Total Citations : 92 | |||
Yanaka, Yuzuru | Iwate-ken, JP | 5 | 16 |
# of filed Patents : 5 Total Citations : 16 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F02M Class
- 2.03 % this patent is cited more than
- 25 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 |
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Mar 13, 2017 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Oct 02, 2012 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Jun 08, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VINESTONE LLC;REEL/FRAME:026573/0116 Owner name: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD, TAIWA Effective Date: Jun 08, 2011 |
May 26, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEVINE, ROBERT L.S.;REEL/FRAME:026370/0594 Owner name: VINESTONE LLC, MASSACHUSETTS Effective Date: May 27, 2011 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STONER, ROBERT J;REEL/FRAME:026370/0830 Owner name: VINESTONE LLC, MASSACHUSETTS Effective Date: May 26, 2011 |
May 26, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VINESTONE CORPORATION;REEL/FRAME:026353/0507 Owner name: DEVINE, ROBERT L S, UNITED KINGDOM Effective Date: May 26, 2011 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VINESTONE CORPORATION;REEL/FRAME:026353/0507 Owner name: STONER, ROBERT J, MASSACHUSETTS Effective Date: May 26, 2011 |
Dec 06, 2010 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 13, 2009 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 06, 2005 | CC | CERTIFICATE OF CORRECTION | |
Sep 13, 2005 | I | Issuance | |
Aug 24, 2005 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 18, 2002 | P | Published | |
Aug 08, 2001 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEVINE, ROBERT L.S.;STONER, ROBERT J.;REEL/FRAME:012071/0255;SIGNING DATES FROM 20010607 TO 20010612 Owner name: VINESTONE CORPORATION, MASSACHUSETTS |
May 04, 2001 | F | Filing | |
Aug 04, 2000 | PD | Priority Date |

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