Abstract: A quick disconnect coupling device for connecting the vertical pipe from a submersible pump in a sewage system to a horizontal pipe includes male and female coupling members. The female coupling member is connected to the horizontal pipe and is coupled to the male coupling member by guideways which are engaged by guide elements on the male coupling member. The male member includes a pair of coupling elements which are connected together to form a 90-degree coupling. A flap type check valve is clamped between the coupling elements of the male coupling member and permits the flow of waste water through the coupling, but prevents the return flow of waste water to the submersible pump.

Abstract: A quick disconnect coupling device for a sump pump includes a pair of vertically disposed coupling members formed of a chemically inert metallic material and coupling the discharge outlet of the sump pump to the outlet pipe for the sump. In one embodiment of the invention, each coupling member engages and is vertically slidable on vertical guide rails positioned within the sump. One coupling member is provided with vertical guide ways for receiving guides on the other coupling member which permits ready disconnection and ready reconnection of the coupling members when the sump pump is raised and lowered.

Abstract: A one-piece wire guard device formed of non-metallic material for use in wells includes an inner ring having a split therein defining an opening and having a portion of reduced thickness defining a hinge. Arcuate sections are disposed concentrically outwardly of the inner ring and are connected to the latter by ribs. The ribs, arcuate sections and inner ring cooperate with each other to define openings for accommodating electric wires, ropes and the like therethrough. A guard device may be flexed about its hinge from a normally closed condition to an open position to permit a drop pipe to be inserted through the opening defined by the split. Releasably locking means lock the guard device upon the drop pipe. Spacer tabs extend outwardly from the arcuate sections and engage a well casing to space the drop pipe from the casing and thereby prevent damage to the drop pipe, electrical wires, safety ropes and the like extending through the guard device.