Foam dispenser

Details Foam dispenser Foam dispenser

1990-02-23

1991-07-23

Huppert, Michael S.

Dispensing

With material treatment or conditioning means

222211, 222484, 222532, B67D 558

Patent

active

050336541

ABSTRACT:
A foam dispenser utilizes a deformable reservoir of foamable fluid and air, a discharge device and an arrangement for producing foam which includes a foam overlay or filter. When the dispenser is operated, air from inside the dispenser is mixed with the fluid to produce foam. The dispenser employs a check valve in the form of a ball and cylinder disposed outside of the path of liquid flow for use in controlling the backward flow of air from outside the dispenser into the interior to recharge the air supply within the dispenser for use in subsequent foam dispensing operations.

REFERENCES:
patent: 4156505 (1979-05-01), Bennett
patent: 4509661 (1985-04-01), Sugizaki et al.
patent: 4531659 (1985-07-01), Wright
patent: 4615467 (1986-10-01), Grogan et al.
patent: 4802610 (1989-02-01), Cheek et al.
patent: 4807785 (1989-02-01), Pritchett

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