Arrangement in liquid dispensers

Details Arrangement in liquid dispensers Arrangement in liquid dispensers

1984-08-17

1986-09-02

Skaggs, H. Grant

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222214, B65D 3700

Patent

active

046091300

ABSTRACT:
The invention relates to a diaphragm pump for dispensing or metering purposes, for example for use in liquid soap dispensers. The pressure chamber (7) of the pump is defined by a fixed wall (6) and the diaphragm (1). A check-valve on the inlet side towards a storage vessel (11) forms a cylindrical flange (4) movable in a groove (5) and sealing against the outer surface thereof. Arranged in a spout (2) passing through the diaphragm is an oblique wall (3), which is slotted through a short distance around its periphery, thereby to form a seal against the suction of air into the pressure chamber (7). The diaphragm (1) is arranged to be compressed by a pressure body (9) provided on a lever (8).

REFERENCES:
patent: 3726442 (1973-04-01), Davidson et al.
patent: 3995774 (1976-12-01), Cooprider et al.
patent: 4088248 (1978-05-01), Blake
patent: 4347953 (1982-09-01), Bauer
patent: 4394938 (1983-07-01), Frassavito

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