Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent
1980-07-02
1983-06-28
Chambers, A. Michael
Valves and valve actuation
With correlated flow path
Valve operated by joining flow path sections
137322, 251353, 251354, 22240224, B65D 8300
Patent
active
043901603
ABSTRACT:
A valve for a pressurized dispensing container comprises a valve housing (11) defining a valve chamber (15) and having at its lower end an inlet for pressurized material. An annular flexible seal (12) closes the upper end of the chamber, there is a cup-shaped valve member (13) within the chamber, and a hollow actuator stem (16) extends in sliding, sealed relation through the seal (12) and engages the valve member (13) at its lower end. A spring (14) urges the valve member (13) upwardly into sealing engagement with the seal (12), the actuator stem (16) being manually moveable downwardly against the action of the spring (14) to unseal the valve member (13) and open the valve. The wall of the actuator stem (16) includes at least one radial, aperture (24) adjacent to but spaced from the lower end of the actuator stem and defining a lip portion (25) adjacent the lower end of the actuator. The aperture or apertures (24) place the interior of the actuator stem (16) in communication with the interior of the valve member (13) and the lip portion (25) serves to restrain the lower end of actuator stem (16) from passing through the seal (12) if the actuator stem is moved upwardly of the seal.
REFERENCES:
patent: 2478052 (1949-08-01), Palm
patent: 2727759 (1955-12-01), Elliott
patent: 3283785 (1966-11-01), Beres et al.
patent: 3583608 (1971-06-01), Green
patent: 3627263 (1971-12-01), Warren et al.
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