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AssigneeKing-Seeley Thermos Co.
InventorsRonald J. Mrugala, Doyle Raymer, Dipak J. Negandhi, Robert L. Latzko
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The improved valve construction provides low force actuation and is therefore suitable in applications where children and handicapped persons may need to operate the valves. The pinch-type valve employs a lever arm pilot which supports a section of tubing in the fluid dispensing circuit. The lever arm is snap fit onto a valve plate and is adapted for rocking movement about a pivot point at one end of the lever arm. A valve cage supports a compression spring which applies a force upon the lever arm tending to depress the lever arm and its associated tube pinching valve seat into pinching contact with the tube. A force applied to the lever arm opposite the pivot point relieves the pinching force and the tube is thus opened for dispensing. An alternate flapper-type valve employs a valve pad encapsulated on the end of a lever arm which is in turn encapsulated in an O-ring seal so that the valve pad is situated at the center of the O-ring and the lever arm is disposed along a radial of the O-ring. The O-ring, lever arm and valve pad assembly is placed in a valve body which provides an inlet and outlet port, the inlet port having a serpentine bend to absorb turbulent shock. A spring is positioned behind the valve pad to hold it in the seated and closed position.
A valve construction for fluid control systems comprising:
Dependencies are inferred from the claim text.