Dispensing valve particularly for viscous products and having a

Details Dispensing valve particularly for viscous products and having a Dispensing valve particularly for viscous products and having a

1979-07-17

1980-10-28

Tollberg, Stanley H.

Dispensing

Resilient wall

With flow controllers or closures

222494, 401183, B05B 1104

Patent

active

042302404

ABSTRACT:
A dispensing valve, particularly adapted for a squeeze bottle containing a viscous product, has a valve head in the form of a thin flat wafer of small diameter stationarily supported as freely as possible from obstructions, and above it an elastically deflectable diaphragm having a central opening with a periphery that seats on the periphery of the wafer. Internal pressure causes the diaphragm to move slightly from the wafer during a dispensing operation. The diaphragm is dome-shaped and extends upwardly to form an externally ball-like applicator surface.

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