Other

Vertico Industries, Inc.

Gilbert Lawrence Abrams

Edward Richard Yuhas

A pump assembly for dispensing fluent material from within a container includes a tank and a piston defining therebetween a pump chamber and movable relative to each other to pump fluid from the container into and out of the pump chamber. A poppet interposed between the tank and the piston extends at one end thereof into the inlet conduit for the pump chamber and at the opposite end into the exhaust conduit. When the tank and piston are moving relative to each other to draw fluid from the container into the pump chamber, the end of the poppet extending to within the exhaust conduit engages against a valve seat defined in the exhaust conduit to close the exhaust conduit. The other end of the poppet extending to within the inlet conduit is frictionally engaged within the inlet conduit and the drag forces thus effected upon this end of the poppet operate to enhance the sealing effect of the opposite end of the poppet to close the exhaust conduit thereby permitting fluid to be drawn into the pump chamber. The minimum cross sectional area through which fluid flows from the container into the pump chamber through the inlet conduit is determined by the dimensions of the inlet conduit and the end of the poppet extending thereinto. By maintaining, during the exhaust stroke of the piston, the minimum cross sectional area of the inlet conduit substantially less than the flow area of the exhaust conduit, fluid within the chamber will tend to follow the path of least resistance and flow out of the exhaust conduit rather than back into the container despite the fact that the inlet conduit is maintained open during this exhaust stroke and despite the fact that no valve means tending to close the inlet conduit at the beginning of the exhaust stroke are provided.

Friction drag pump assembly

A molding apparatus to provide composite plastic articles within the mold is provided. The apparatus includes upper and lower sections which when in a closed position, form a mold cavity divided into two separated chambers by partitions in the upper section. Elements of a desired configuration are formed in the chambers by injecting molten plastic therein and cooling. After formation of the elements, the upper section of the mold is removed and with it, the partitions separating the cavity into chambers. The elements, which are now at opposite ends of an unblocked cavity, are then driven into engagement with each other by a driving means while still in the mold. The joined elements are then ejected from the mold as a composite article. In the preferred embodiment, the elements are interlocked 'E' shaped devices which form a solid cube when joined. These elements are molded with protrusions placed on the surfaces thereof and when coated with a plastic coating, the cube forms a game die with the protrusions functioning as the 'numbers' thereon.

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Valley Cottage, NY, United States of America

Gilbert Lawrence Abrams