Pressure and thermal relief valve for fuel tank
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 2, 1991
Issued Date -
N/A
app pub date -
Apr 30, 1990
filing date -
Oct 12, 1988
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A valve plug is biased inwardly by a spring (90) to close an opening (10) in a cap (2) for a fuel tank filling and venting tube. A valve stem includes a first portion (62) which is engaged by the spring (90) and a second float cage portion (40) that is secured to and extends axially inwardly from the plug. A collapsible retainer (70) is secured to the cage (40) and has an abutment surface (74) which engages an abutment surface (68) on the first portion (62) to hold the cage (40) and the first portion (62) in position relative to each other and to transmit axial forces therebetween. A fusible material ring (88) is positioned radially between the retainer (70) and the cage (40) to prevent the retainer (70) from collapsing. At elevated temperatures, the ring (88) melts to allow the retainer (70) to collapse, the cage (40) and first stem portion (62) to separate from each other, and the valve plug and cage (40) to move away from the opening (10).
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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NORGREN GT DEVELOPMENT CORPORATION | 425 C STREET NW AUBURN WA 98001 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Forsythe, Alan K | Vashon, WA | 19 | 1210 |
# of filed Patents : 19 Total Citations : 1210 | |||
Gabrlik, Zdenek | Seattle, WA | 7 | 119 |
# of filed Patents : 7 Total Citations : 119 | |||
Morris, John M | Auburn, WA | 33 | 1500 |
# of filed Patents : 33 Total Citations : 1500 |
Cited Art Landscape
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Patent Citation Ranking
- 15 Citation Count
- F16K Class
- 0 % this patent is cited more than
- 34 Age
Forward Cite Landscape
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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 |
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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

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Jan 17, 2013 | P | Published | |
Sep 27, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NISHIKUBO, YUICHI;OHNUMA, KENJI;MORITA, KIYOKAZU;AND OTHERS;SIGNING DATES FROM 20120912 TO 20120914;REEL/FRAME:029039/0032 Owner name: KONICA MINOLTA MEDICAL & GRAPHIC, INC., JAPAN |
Feb 23, 2011 | F | Filing | |
Mar 31, 2010 | PD | Priority Date |

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