Other

Tapeswitch Corporation of America

Robert E Russell

Edward W Duhon

John O'Meara, Jr

Thomas Polistina

A protective mat for use with pressure-actuated switching devices having a moisture-resistant, isolated switching chamber protected by a puncture-resistant, protective layer which disperses forces applied to the mat.

Puncture-resistant mat for pressure-actuated switches

A ventilation system for use with devices which produce airborne impurities, particularly cooking grills, deep fat fryers and the like. A first blower supplies untempered makeup air. A first plenum, which includes a first perforated wall having a plurality of openings therein, supplies air from the first blower, via a duct, into space beneath an upper front portion of a hood. A second plenum, which includes a second perforated wall having a plurality of apertures therein, supplies air from the first blower, via a duct, into space beneath the hood to cool air and impurities, which may include flue gas, moving upwardly in space adjacent the second perforated wall, the apertures in the second perforated wall being positioned to discharge air substantially horizontally into this space. A second blower is provided for exhausting air and impurities from the hood via a duct and an exhaust plenum. One or more filters are arranged opposite the first perforated wall and the exhaust plenum to remove grease from the exhaust. At least one opening, preferably one or more slots, extend along a member defining a wall portion of the exhaust plenum adjacent the top of the second perforated wall to effect passing into the exhaust plenum of air, impurities and flue gas moving upwardly along this wall.

Ventilating system for use with devices which produce airborne impurities

A power driven oscillating sifter oscillated by a motor driven crank arm with the sifter having a pair of end plates and a central baffle all secured to the shaft. A perforated semi-cylindrical sifter panel is detachably secured to the end panels by means of inturned flanges on the end panels. The sifter panel has a plurality of longitudinally extending ribs for agitating the material to be sifted and openings are provided in the baffle and the lower end wall to permit the exit of materials which will not pass through the perforations of the sifter panel.

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Old Bethpage, NY, United States of America

Robert E Russell