Abstract: A filter bag assembly for a sealed, releasable attachment to a circular cap includes a flexible inelastic wire ring and a substantially concentric elastically expandable member. These elements are enclosed in an external cuff turned on the end of the filter bag. The cap includes a radially extended rim having an external diameter greater than the inside diameter of the wire ring. The cap outer diameter is less than the inside diameter of the wire ring but exceeds the unstressed inside diameter of the expandable member.
Abstract: A toy vehicle for multiple lane track racing includes rear wheels releasably driven for traction and pivotable front wheels for steering. The pivotable front wheels pivot in unison periodically at a repetition rate directly related to the rotational speed of the motor thereby causing the car to swerve alternately between two lanes on opposed sides of the track. The wheel pivoting mechanism may include a cam and snail gear for speed reduction. Pick-up shoes attached beneath the car chassis contact power conductors along the track lanes to energize the motor. An input circuit on the vehicle provides forward vehicle motion regardless of the input voltage polarity. When the vehicle is intermediate the vehicle lanes, the motor is de-energized and a clutch may disengage the rear wheels.
Abstract: A liquid-oil feeder is provided for supplying various metered amounts of oil to a plurality of regions. The feeder has a tank of oil and an oil pick-up chamber reciprocating in and out of the supply of oil. The chamber contacts a transfer plate and a longitudinally adjustable rod displaces the oil from the chamber to the transfer plate. The metered amount of oil then flows from the transfer plate through a spout to an outlet leading to an oil line for carrying the oil to the various regions. A plurality of such chambers and transfer plates, displaced as a unit and each associated with a separate adjustable rod and outlet, may be provided. The feeder is capable of supplying oil in a continuous flow of droplets and also has flushing apparatus for supplying a stream of oil to various regions.
Type:
Grant
Filed:
October 20, 1978
Date of Patent:
July 1, 1980
Assignee:
Uniwave, Inc.
Inventors:
John Baumann, Abraham Abrams, Marvin Broitman