To provide a simple embodiment of a rotor (2) for a fluid pump which is nevertheless very flexible in handling and compressible, in accordance with the invention a conveying blade is provided having at least two struts (12, 13, 14) and a membrane spanned between them in the expanded state, wherein the struts each have at least one joint, in particular more than one joint, which enables an angling in a first direction in a first movement plane and bounds an overelongation beyond an elongation angle of in particular 180 in the opposite second direction. In particular when a plurality of joints (15, 16, 17) are provided at the struts, they, and with them the conveying blades, are particularly flexible for simple compressibility.

In a rotor for a fluid pump which is made radially compressible and expandable and has a hub (4) and at least one conveying element (10, 11, 19, 20) which has a plurality of struts (12, 13, 14, 15, 16, 21, 22, 27, 28) and at least one membrane (18) which can be spanned between them, provision is made for a design in accordance with the invention which is as simple and inexpensive as possible that at least one first group of struts is pivotable in a pivot plane, starting from a common base, and can thus be spanned open in the manner of a fan, wherein the conveying element lies along the hub and contacts it over its full length in the expanded state to avoid a pressure loss at the margin of the conveying element between it and the hub and thus to realize an optimum efficiency.

A pump is provided for immersion in a fluid reservoir, such as a pit or lagoon containing liquid manure, from a position at an edge of the reservoir. The pump may be adapted for connection to a farm vehicle, such as a tractor, positioned at the edge of the reservoir. The pump has a frame, a fluid conduit coupled to the frame, a housing located at a bottom end of the liquid manure pump configured to be immersed in a liquid manure reservoir, a combiner for creating a liquid manure connection between at least two liquid manure outlets of the housing and the fluid conduit. an impeller located within the housing, a drive shaft connected to the impeller, and an agitator nozzle, in fluid communication with at least one of the liquid manure outlets, for directing a portion of the liquid manure outwardly from the pump.

A lift-out pump disconnect system is mounted to two parallel rails that are affixed to a pump enclosure. The disconnect system has a receiver body that is affixed to the rails and slidable along the rail axes with ear portions. The disconnect system further includes an outlet body that mates to the receiver body using tabs that slide on clamping ramped surfaces on the receiver body. Downward movement of the outlet body causes the clamping ramped surfaces to move the outlet body closer to the receiver body until flat sealing surfaces are in biased contact.

A transfer pump has a pump base with a pump chamber and an output port in the top surface of the pump base. A riser tube extends from the outlet and terminates at a launder having a first end juxtaposed the riser tube, an open top, and a bottom having a launder opening. This structure enables the movement of molten metal out of a vessel with relatively little turbulence.

A lift-out pump disconnect system is mounted to two parallel rails that are affixed to a pump enclosure. The disconnect system has a receiver body that is affixed to the rails and slidable along the rail axes with ear portions. The disconnect system further includes an outlet body that mates to the receiver body using tabs that slide on clamping ramped surfaces on the receiver body. Downward movement of the outlet body causes the clamping ramped surfaces to move the outlet body closer to the receiver body until flat sealing surfaces are in biased contact.

A lift-out pump disconnect system is mounted to two parallel rails that are affixed to a pump enclosure. The disconnect system has a receiver body that is affixed to the rails and slidable along the rail axes with ear portions. The disconnect system further includes an outlet body that mates to the receiver body using tabs that slide on clamping ramped surfaces on the receiver body. Downward movement of the outlet body causes the clamping ramped surfaces to move the outlet body closer to the receiver body until flat sealing surfaces are in biased contact.

In a rotor for a fluid pump which is made radially-compressible and expandable and has a hub (4) and at least one conveying element (10, 11, 19, 20) which has a plurality of struts (12, 13, 14, 15, 16, 21, 22, 27, 28) and at least one membrane (18) which can be spanned between them, provision is made for a design in accordance with the invention which is as simple and inexpensive as possible that at least one first group of struts is pivotable in a pivot plane, starting from a common base, and can thus be spanned open in the manner of a fan, wherein the conveying element lies along the hub and contacts it over its full length in the expanded state to avoid a pressure loss at the margin of the conveying element between it and the hub and thus to realize an optimum efficiency.

A submersible machine guide assembly suitable for guiding a submersible machine from an upper position towards an operative position. The guide assembly includes a top mount configured to be arranged at the upper region of the tank, a supporting member configured to be arranged in the tank, and two guide wires running along each other in the vertical direction of the tank. Each of the guide wires is connected to the top mount at a first end and is connected to a seat of the supporting member at a second end. A runner is displaceable along the guide wires. The runner includes two guide members that engage the guide wires and that are connected to each other at the lower ends thereof. The lower end of each guide member is configured to engage the corresponding seat of the supporting member when the runner is in the operative position.

One or more techniques and/or systems are disclosed for mitigating a need to construct a series of elbows, pipes, couplings and valves, typically needed to install a pump into a basin or pit. The methods and systems described herein may allow an installer of such a system to install the unit at a variety of heights; and may allow the installer to use a variety and multiple materials for guiding the pump into the basin or pit. The system may comprise a guide secured in the pit, and a cradle assembly secured to the guide at a desired height. A pump coupler can be secured to a pump, and slid into the cradle to fluidly couple the pump with a discharge pipe attached to the cradle assembly.