Other

Ferrotec Corporation

Crockett & Kelly, Inc.

Charles D Hoyt

Paul V Horst, Sr

Joseph E Velazquez

Charles L Nemnich

An apparatus for cleaning drains has a drum auger with a coiled snake cable mounted on a telescoping extension tube. The tube has a rear and a forward handle with a cable lock on top of each handle. By alternately locking/unlocking each handle's cable lock and extending/folding the telescoping extension tube, the user can project the cable down a clogged drain without touching the cable. A second key feature is that the telescoping extension tube prevents kinking of the cable. Turning the auger handle twists the cable's auger tip when a wing screw locks the cable to a rotatable nose on the drum auger.

Telescoping drum auger extension tool

A capacitive transducer for measuring the rotation of a shaft including relatively movable rotor and stator elements. A unique arrangement of capacitive plates is mounted on the stator and rotor for producing a signal indicative of shaft rotation using direct current excitation but without requiring brushes, commutators or slip rings. A preferred embodiment may further include co-planar first, second and third stator plates or alternatively, cylindrically shaped stator and rotor plates. The number of stator plate segments included in each of the first and second stator plates, of the embodiment employing co-planar plates, may be an even multiple less than the number of rotor plate segments. By this arrangement, a circumferential gap may be provided in the first and second plates through which an extension of the third stator plate may be located to reach an output signal terminal located adjacent to but beyond the radial extent of the first and second stator plates.

D.C. excited capacitive shaft rotation transducer

An accelerometer comprising a ferrofluid coated permanent magnet as a proof mass mounted for substantially friction-free movement in a hollow vessel on which vessel are mounted three coils that are used with an electrical circuit to detect and measure movement of the proof mass in response to an outside force and to return the proof mass to a null position.

Apparatus and method for measuring movement

A portable electrically-powered space heater includes an electrically-powered boiler generating steam at subatmospheric pressure from a mixture of water and ethylene glycol that is circulated through a closed loop heat exchanger, portions of which comprise fin-tube radiators. The boiler is thermostatically controlled by a thermostat located in a chimney into which a downdraft of ambient air is drawn by a fan creating a forced-flow of air over the fin tubes. An automatic temperature-responsive time delay mechanism allows the boiler to get up to its operating temperature before the fan is actuated to draw air across the thermostat. The heater is further characterized by a novel design wherein a pair of upstanding heat exchangers are each housed in branches of a generally Y-shaped housing with a fan located in the stem-forming portion thereof effective to cooperate with the heat exchangers and the double-walled side panels alongside thereof to distribute a curtain of warm air over a 90.degree. or better swath.

Electrically-powered portable space heater

Space heater

The specification discloses a magnetic liquid core toroidal transformer having four secondary windings spaced 90.degree. apart. When the toroid is deviated from the horizontal plane, the magnetic liquid causes the secondary winding voltages to correspondingly change.

Growing community of inventors

Northglenn, CO, United States of America

Charles D Hoyt