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Center for Innovative Technology

Carlos V Perry, Jr

Larry T Taylor

Robert B Mayer

James Rancourt

Christopher G Perry

Liquid gallium or gallium alloy is utilized as the conductive fluid in a switch or sensor housing. In order to prevent wetting of the interior walls of the switch or sensor housing, the liquid gallium or gallium alloy is either free of metal oxides or has only very low quantities of metal oxides.

Electrical switches and sensors which use a non-toxic liquid metal

A diverter valve adapted for use in septic systems for controlling the flow of effluent from a septic tank to a plurality of leach beds, comprising a thick-walled injection molded valve body of PVC or ABS plastic, closed at the bottom and having a centrally disposed valve chamber provided with an inlet, and a plurality of outlet ports, rigid integrally formed ribs extending from the top to the bottom walls of the valve body dividing the same into separate inlet and outlet chambers communicating with the central valve chamber, a circular opening in the top of the valve body adapted to receive an injection molded tapered valve plug, a retainer cap for securing the valve plug and stem in operative position, the lower sides tapered and in contact with the valve body and the lower surface of the depending ring of the cap provided with a serrated surface to form a tight seal with the valve plug. The valve plug has a cut-away central portion providing a passageway for alternately connecting the inlet port with one of the outlet ports while closing the other outlet ports, the valve plug having an integral shaft extending beyond the top surface of the valve body and adapted to rest in sliding contact with valve seats formed in both the top and side walls of the valve body. The upper external circular portion of the valve body is provided with a series of steps to accommodate access means, such as a pipe, of differing internal diameters. The valve plug is so dimensioned as to leave a small amount of play between the bearing surfaces of the valve body, and means are provided so that when the valve plug cut-away central portion is aligned with the inlet port and an outlet port, the bearing surfaces of the valve plug and the valve body are pressed into close contact to form a relatively tight seal. This results in a sealed unit adapted for use in septic systems operating either at normal or positive pressures.

Diverter valve for septic systems

A septic tank system having an improved outlet which may be readily installed in existing septic tanks without modification of the tank or outlet fittings, to prevent the discharge of particles of sewage suspended in the effluent from passing directly into the drain field, the outlet including a 'T', a dual conic deflector composed of two cones joined at their bases and flexibly supported directly below the open lower end of the 'T' to deflect therefrom effluent containing solid particles rising from the bottom of the tank during the fermentation process. The flexible mounting permits sidewise displacement of the conic deflector so that the upright portion of the 'T' can be reamed to remove any accumulation of deposits therefrom, the conic deflector being weighted so as to return to its original position after the reaming operation has been completed.

Outlet for septic tanks

A diverter valve, particularly adapted for use in septic systems, for controlling the flow of effluent from a septic tank to a plurality of leach beds, comprising a thick-walled valve body of cast urethane having a deep circular groove in the upper surface to receive a section of a capped pipe to afford access to the valve control from ground level, and having a centrally and vertically disposed valve chamber provided with an inlet port and a plurality of outlet ports, rigid integrally cast webs extending from the top to the bottom walls of the valve body dividing the same into separate inlet and outlet chambers communicating with the central valve chamber, oppositely disposed circular openings in the top and and bottom walls of the valve body, the walls of the openings providing bearing surfaces for a tapered valve plug of cast urethane having top and bottom circular sections and having a cut-away central section providing a passageway for alternatingly connecting the inlet port with one of the outlet ports. The valve plug has at its upper end an integrally cast short shaft extending above the top surface of the valve body, a cast urethane cap having a central opening to receive the valve plug shaft, the cap being removably attached to the valve body to maintain the valve plug in position, and a knob cast into the valve plug shaft, cooperating with a groove in the cap to limit the rotation of the valve plug and insure proper alignment of the passageway in the valve plug with the inlet and outlet ports in the valve body.

Growing community of inventors

Manassas, VA, United States of America

Carlos V Perry, Jr