Abstract: A manually operable priming pump has a housing formed with an inlet port adapted to be connected to a supply of fuel and an outlet port adapted to be connected to a fuel-delivery system, a body in the housing between the ports and formed with a throughgoing main passage that is completely clear of obstructions. The body is shiftable between an operating position in which the main passage is aligned with the inlet and outlet ports and permits free flow therebetween and a pumping position, and a piston in the body can be manually reciprocated in the pumping position to draw fluid in through the inlet port and expel it from the outlet port.

Abstract: A manually operable fuel pump has a housing formed with an inlet port adapted to be connected to a supply of fuel and an outlet port adapted to be connected to a fuel-delivery system, a body in the housing between the ports and formed with a throughgoing main passage that is completely clear of obstructions. The body is shiftable between an operating position in which the main passage is aligned with the inlet and outlet ports and permits free flow therebetween and a pumping position, and pump means connected to the body manually operable for, in the pumping position, drawing fluid in through the inlet port and expelling it from the outlet port.

Abstract: A device to separate particles of solids and high-density fluids from fluids of lower density, whereby a casing, equipped with an inlet channel and outlet in the central section, upper lid structure and cup-shaped bottom part form a longitudinal chamber. The lid structure consists of an operating element, a suspension bridge and a lid. The suspension bridge can be attached to the central section through operation of the operating element. The operating element pushes through the suspension bridge. The lid, which is located underneath the suspension bridge, is allowable by the operating element through further operation of the operating element and it can be pressed onto the central section. A pressing element that rests on the lid pushes the filter element against a base.