Marine fuel tank vent valve

Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C137S043000, C137S589000, C141S216000

Reexamination Certificate

active

11003041

ABSTRACT:
The present invention relates to a simple fuel vent assembly for use in inboard and outboard fuel tanks for marine vessels. The vent assembly includes upper and lower portions defining an L shaped interior passageway. The lower portion includes upper and lower valve seats positioned within this passageway. Spaced vent openings extend through the lower portion above and below the valve seat. A spherical float is positioned within the passageway between the upper and lower valve seats. As fuel is added to the tank, pressure can escape through the fuel vent. The flow valve is within the passageway as the level of liquid fuel in the tank rises during the fuel refilling process. When the tank is at its desired fill level the float engages the upper valve seat and forms a seal preventing liquid fuel from traveling past the upper seat and through the passageway into the atmosphere outside the tank. The second vent opening remained open to vent pressure from the space between the top of the tank and the fuel level.

REFERENCES:
patent: 1252267 (1918-01-01), Hoffman
patent: 1603240 (1926-10-01), Gregory
patent: 1648047 (1927-11-01), Giesler
patent: 2313773 (1943-03-01), Samiran
patent: 2510098 (1950-06-01), Geisler
patent: 2909186 (1959-10-01), Larson
patent: 3603359 (1971-09-01), Belue
patent: 3830252 (1974-08-01), Follett
patent: 3958591 (1976-05-01), Hansel et al.
patent: 4586528 (1986-05-01), Andres et al.
patent: 4640304 (1987-02-01), Looney
patent: 4854469 (1989-08-01), Hargest
patent: 5129422 (1992-07-01), Davison, Jr.
patent: 5273466 (1993-12-01), Thompson
patent: 5386843 (1995-02-01), Church
patent: 5435335 (1995-07-01), Klop
patent: 5687756 (1997-11-01), VanNatta et al.
patent: 5762093 (1998-06-01), Whitley, II
patent: 5899227 (1999-05-01), Stuart
patent: 6029697 (2000-02-01), Phillips et al.
patent: 6138707 (2000-10-01), Stuart
patent: 6158456 (2000-12-01), Enge
patent: 6347640 (2002-02-01), Meyer
patent: 6443177 (2002-09-01), Romanek

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Marine fuel tank vent valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Marine fuel tank vent valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine fuel tank vent valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3852317

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.