Dispensing valve particularly for viscous products
OwnerRobert H. Laauweinventor
Life of this patent
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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.
Claims10
A dispensing valve having a base comprising a circular rim, means for connecting said rim to a squeeze bottle's mouth, a circular wafer, and spokes connecting with and radiating from the wafer's bottom and extending radially to the rim in a plane below said bottom and positioning the wafer on and normal to the rim's axis, said wafer being thin as compared to its diameter and having a small diameter as compared to the rim's diameter and forming an annular space between the wafer and rim;
- and a cap comprising an elastically flexible annular diaphragm positioned above said plane and having a central opening with a periphery normally resting on the periphery of said wafer, and a depending flange connected to said rim, said peripheries having substantially mating conical surfaces, wherein substantially the entire conical surfaces contact each other, said wafer having a flat top and bottom, said spokes having inner tips which connect with said bottom only and said bottom being otherwise free from obstructions in a downward direction.
Dependencies are inferred from the claim text.