Receptacles – Closures – With condition responsive vent or valve
Patent
1987-12-21
1988-10-25
Hall, George T.
Receptacles
Closures
With condition responsive vent or valve
220303, 220DIG33, B65D 5116
Patent
active
047797550
ABSTRACT:
A fuel cap is provided with a vent system for lowering the actuation pressure of its internal pressure-relief valve in response to rotation of the fuel cap relative to the filler neck in a cap-removal direction. The vent system provides an operative connection between the cap handle and a pressure-relief valve in the cap. The vent system includes a spring for applying a closure-inducing force urging the pressure-relief valve against its valve seat to close a vent aperture in the cap, and a control system for regulating the magnitude of the closure-inducing force in response to rotation of the handle in a cap-removal direction. Use of the control system to lower the magnitude of the closure-inducing force permits the pressure-relief valve to move away from the valve seat to a venting position upon exposure to excessive fuel vapor pressure in the filler neck so that a fuel vapor-venting outlet through the cap is established during a removal of the fuel cap from the filler neck. This vent system facilitates venting of the tank past the pressure-relief valve in a controlled manner past the pressure-relief valve prior to breaking a primary fuel and fuel vapor seal between the fuel cap and the filler neck.
REFERENCES:
patent: 2006752 (1935-07-01), Swank
patent: 2591562 (1952-04-01), Levell
patent: 2792964 (1957-05-01), Reese et al.
patent: 2865531 (1958-12-01), Gorst et al.
patent: 2964214 (1960-12-01), Stannard
patent: 2990971 (1961-07-01), Enell
patent: 3082905 (1963-03-01), Friend
patent: 3098636 (1963-07-01), Contella
patent: 3111239 (1963-11-01), Ivins
patent: 3112840 (1963-12-01), Miller et al.
patent: 3147881 (1964-09-01), Friend
patent: 3163315 (1964-12-01), Wilson
patent: 3186580 (1965-06-01), Previte
patent: 3203445 (1965-08-01), McCormick
patent: 3373894 (1968-03-01), Johnson
patent: 3434621 (1969-03-01), Previte
patent: 3587912 (1971-06-01), Ohta et al.
patent: 3616960 (1971-11-01), Miller et al.
patent: 3703245 (1972-11-01), Brewer
patent: 3854911 (1974-12-01), Walker
patent: 4036399 (1977-07-01), Gerdes
patent: 4177931 (1979-12-01), Evans
patent: 4228915 (1980-10-01), Hooper et al.
patent: 4245751 (1981-01-01), Neiman
patent: 4271976 (1981-06-01), Detwiler
patent: 4337873 (1982-07-01), Johnson
patent: 4458823 (1984-07-01), Baker
patent: 4458824 (1984-07-01), Baker et al.
patent: 4494673 (1985-01-01), Hiraishi
patent: 4498493 (1985-02-01), Harris
patent: 4572396 (1986-02-01), Kasugai et al.
patent: 4579244 (1986-04-01), Fukuta
patent: 4588102 (1986-05-01), Kasugai
patent: 4676390 (1987-06-01), Harris
patent: 4716920 (1988-01-01), Crute
patent: 4726488 (1988-02-01), Kasugai
Hall George T.
Stant Inc.
LandOfFree
Pressure release control fuel cap does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure release control fuel cap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure release control fuel cap will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2264432