Umc Industries, Inc.

Calvin L Chumley

Harry H Pryor

William W Hendrickson

Leon P Mace

A valve comprising a body having a chamber therein, fluid inlet and outlet ports in communication with the chamber, an opening for a valve plunger, and a nipple extending into the chamber having a passage constituting one of said ports. A valve plunger extends through the opening in the body and is movable toward and away from the nipple, the plunger comprising a generally conical valve member at its end toward the nipple in axial alignment with the passage in the nipple. A sleeve of resilient material of generally circular section is secured to the nipple and has a portion extending beyond the end of the nipple. The inner surface of the extending portion of the sleeve at the free end thereof is countersunk thereby forming a frustoconical valve seat. The angle of the seat relative to the axis of the sleeve is at least as great as the angle of the conical valve member relative to the axis of the sleeve, and the valve member, on entry into the sleeve, thereby engages the inner end of the seat and, on continued movement in the direction toward the nipple, expands the extending portion of the sleeve and sealingly engages the seat, the valve member, in moving into the sleeve, wiping the seat to remove scale which may have deposited on the seat and on the portion of the valve member engageable with the seat.

Hot water valve

A slide selector switch device comprising a membrane switch having a base layer, an intermediate layer and a cover layer of electrical insulation material, the intermediate layer having a plurality of sets of openings arranged in straight lines, the base and cover layers each having an electrically conductive switching and circuit pattern on its inside face including contact areas at the openings and circuits each adapted to be made on electrical contact of the contact areas at a respective opening, a slide guide overlying the cover layer, and slides, one for each of said sets of openings, each slidable along a respective line to a plurality of different positions for depressing the portion of the cover layer at a respective opening to make the respective circuit.

Slide selector switch device

Coin transfer apparatus for vendors enabling handicapped persons in wheel chairs to utilize the vendors, adapted to receive coins at a level within reach of a person in a wheel chair and acting automatically in response to deposit of coins to transfer the coins to a level above the coin controlled apparatus of the vendor, the coins then gravitating down to the coin controlled apparatus in the vendor.

Growing community of inventors

St. Louis County, MO, United States of America

Calvin L Chumley