Abstract: An insert rod guide has an elongated cylindrical member with an externally threaded first or upper end of a first diameter and an internally threaded lower or second end of a larger diameter with an axial bore extending between the ends. Intermediate the ends of the member is a truncated conical shoulder with a plurality of regularly spaced bores angled outwardly from the axial bore through the shoulder. An annular sand shield is mounted externally on the member for axial movement therealong. The sand shield has one face which is tapered to mate with the shoulder. An annular hardened insert is mounted on the upper end of the member and is held in place by retainer collar.

Abstract: A bottom discharge valve is located on the bottom of the pump barrel just above the standing valve. The externally threaded pin end of the standing valve threads into the lower internally threaded portion of the bottom discharge valve. The externally threaded or pin end of the bottom discharge valve is large enough to allow the plunger cage or the traveling valves to actually stroke into the hollow portion of the neck or pin end of the disclosed bottom discharge valve.

Abstract: An insert rod guide has an elongated cylindrical member with an externally threaded first or upper end of a first diameter and an internally threaded lower or second end of a larger diameter with an axial bore extending between the ends. Intermediate the ends of the member is a truncated conical shoulder with a plurality of regularly spaced bores angled outwardly from the axial bore through the shoulder. An annular sand shield is mounted externally on the member for axial movement therealong. The sand shield has one face which is tapered to mate with the shoulder. An annular hardened insert is mounted on the upper end of the member and is held in place by retainer collar.

Abstract: A bottom discharge valve is located on the bottom of the pump barrel just above the standing valve. The externally threaded pin end of the standing valve threads into the lower internally threaded portion of the bottom discharge valve. The externally threaded or pin end of the bottom discharge valve is large enough to allow the plunger cage or the traveling valves to actually stroke into the hollow portion of the neck or pin end of the disclosed bottom discharge valve.

Abstract: A lower pull tube adapter has an enlarged body portion and an enlarged seal surface so that one size pull tube adapter may be used for a wide range of reciprocating downhole well pumps of different sizes and types.

Abstract: A fluid pumping apparatus for pumping fluids from a well, through a production string comprising: a tubular pump plunger concentrically disposed in a sliding and sealing fit with a tubular pump barrel. A cylindrical polished rod, the lower end of which is connected to a string of rods, extends upwardly through a sealing assembly for sliding and sealing reciprocation. The diameter of the polished rod being at least as great as the outside diameter of the pump plunger. A power device is operatively connected to the polished rod for lifting and lowering the polished rod, the string of rods and either the barrel or plunger; such that no fluid is remove from the production string on the upward movement of the polished rod.

Abstract: Fluid pumping apparatus for pumping fluids from a well comprising a downhole pump disposed near the lower and of a production string and including a tubular pump barrel and a tubular pump plunger concentrically disposed in the pump barrel in a sliding and sealing fit therewith, one of the pump barrel and the pump plunger being fixed to the production string the other being attached to the lower end of a string of rods for reciprocal movement. A standing valve is provided in the fixed one of the pump barrel and the pump plunger. A traveling valve is provided in the other. A cylindrical polished rod, the lower end of which is connected to the string of rods, extends upwardly through a sealing assembly for sliding and sealing reciprocation therethrough, the diameter of the polished rod being at least as great as the outside diameter of the pump plunger.