Abstract: A sump draining apparatus having a pressure transducer engaged in a receptacle that is in turn engaged in an open-ended collar of a housing. The receptacle and thus the pressure transducer is slideable in the axial direction into and out of the open-ended collar. The housing is generally cylindrical and contains a pump and motor, each of which has a generally cylindrical shape and is axially stacked in the housing. A cord having a vent and electrical leads for the pressure transducer is releasably engaged via a cord restraint at one end portion of the housing and the pressure transducer is releasably engaged in the receptacle in the open-ended collar at the other end of the housing. The receptacle and sensor may be removed, serviced, and/or replaced without the housing being opened and without the pump and motor being removed.

Abstract: A sump draining apparatus having an pressure transducer engaged in a receptacle that is in turn engaged in an open-ended collar of a housing. The receptacle and thus the pressure transducer is slideable in the axial direction into and out of the open-ended collar. The housing is generally cylindrical and contains a pump and motor, each of which has a generally cylindrical shape and is axially stacked in the housing. A cord having a vent and electrical leads for the pressure transducer is releasably engaged via a cord restraint at one end portion of the housing and the pressure transducer is releasably engaged in the receptacle in the open-ended collar at the other end of the housing. The receptacle and sensor may be removed, serviced, and/or replaced without the housing being opened and without the pump and motor being removed.

Abstract: A sump draining apparatus is disclosed which is intended for use in removing toxic and other hazardous liquids from sites such as landfills. The sump draining apparatus is intended for use in a landfill or the like having a side slope riser conduit that extends from the bottom of the landfill along its sloping side surface to a point outside the landfill. The apparatus includes a cylindrical body that is smaller in size than the riser conduit and which houses an electric pump that discharges fluid through a flexible pipe connected to the apparatus outlet and which extends through the riser conduit to a point outside the landfill. The cylindrical body is provided with a wheel assembly at each end that together permit it to roll to the extreme bottom of the side slope riser conduit where it may pump with maximum effectiveness.

Abstract: Sump draining apparatus is disclosed consisting of a cylindrical canister which houses a cylindrically configured pump and motor disposed in axially stacked relation. The top end of the cylindrical canister is sealably closed and the lower end is open to define a liquid inlet. The pump has an inlet spaced from the liquid canister inlet and a pump outlet. A connecting pipe leads from the pump outlet through the closed upper end of the canister to define an external discharge outlet for pumped liquid. Atmospheric pressure forces liquid through the canister inlet upward to the pump inlet, where it is pumped away through the discharge outlet. Air compressed by the incoming liquid is vented through a check valve connected to a vent opening in the top of the canister.