Abstract: A double-acting reciprocating pump comprises a piston assembly comprising at least one piston disposed within at least one piston cylinder for undergoing opposite reciprocal movements within said at least one piston cylinder, an upper pump chamber disposed above the piston, and a lower pump chamber disposed below the piston. A fluid inlet is fluidically connected to one of the upper and lower pump chambers so as to supply fluid thereto, and a fluid outlet dispensing port is defined within a lower end portion of the double-acting reciprocating pump assembly for permitting fluid to be dispensed out from the double-acting reciprocating pump assembly during both of the opposite reciprocal movements.

Abstract: A double-acting reciprocating pump comprises a piston assembly comprising at least one piston disposed within at least one piston cylinder for undergoing opposite reciprocal movements within said at least one piston cylinder, an upper pump chamber disposed above the piston, and a lower pump chamber disposed below the piston. A fluid inlet is fluidically connected to one of the upper and lower pump chambers so as to supply fluid thereto, and a fluid outlet dispensing port is defined within a lower end portion of the double-acting reciprocating pump assembly for permitting fluid to be dispensed out from the double-acting reciprocating pump assembly during both of the opposite reciprocal movements.

Abstract: A system of pumps wherein a first hydraulic motor operatively connected to a first master pump can hydraulically drive a second hydraulic motor operatively connected to a second slave pump. A hydraulic fluid outlet of the first hydraulic motor is fluidically connected to a hydraulic fluid inlet of the second hydraulic motor whereby the first hydraulic motor, operatively connected to the first pump, drives the second hydraulic motor, operatively connected to the second pump, in a hydraulically synchronized manner.

Abstract: The present invention comprises a new and improved positive displacement reciprocating pump wherein the pump comprises a pump rod assembly which comprises three different regions having three different external diameter dimensions or three different external diametrical extents wherein the first uppermost region is provided with an external diameter or diametrical extent of 0.500 inches which has a surface area of 0.1964 in2, the second intermediate one of the three regions is provided with an external diameter or diametrical extent of 0.525 inches which has a surface area of 0.2166 in2, and the third lowermost one of the three regions is provided with an external diameter or diametrical extent of 0.474 inches which has a surface area of 0.1762 in2.

Abstract: The present invention relates generally to pumps, and more particularly to a system of pumps wherein a first hydraulic motor operatively connected to a first master pump can hydraulically drive a second hydraulic motor operatively connected to a second slave pump. More particularly, a hydraulic fluid outlet of the first hydraulic motor is fluidically connected to a hydraulic fluid inlet of the second hydraulic motor whereby the first hydraulic motor, operatively connected to the first pump, drives the second hydraulic motor, operatively connected to the second pump, in a hydraulically synchronized manner.

Abstract: The present invention comprises a new and improved positive displacement reciprocating pump wherein the pump comprises a pump rod assembly which comprises three different regions having three different external diameter dimensions or three different external diametrical extents wherein the first uppermost region is provided with an external diameter or diametrical extent of 0.500 inches which has a surface area of 0.1964 in2, the second intermediate one of the three regions is provided with an external diameter or diametrical extent of 0.525 inches which has a surface area of 0.2166 in2, and the third lowermost one of the three regions is provided with an external diameter or diametrical extent of 0.474 inches which has a surface area of 0.1762 in2.

Abstract: An integral melter and pump assembly or system, and a method of making the same, is disclosed wherein the pump assembly comprises a melter housing having a melter container defined within the melter housing. A pump mounting plate is integrally mounted within a side wall portion of the melter container and an output dispensing supply pump is mounted directly upon an external surface portion of the pump mounting plate in a surface-to-surface manner such that heat generated internally within the melter container is effectively transferred by conduction from the melter container and through the pump mounting plate such that the temperature level of the output pump is elevated to, and maintained at, a predeterminedly desired level even when the pump, is not disposed in its output dispensing mode.

Abstract: An integral melter and pump assembly or system, and a method of making the same, is disclosed wherein the pump assembly comprises a melter housing having a melter container defined within the melter housing. A pump mounting plate is integrally mounted within a side wall portion of the melter container and an output dispensing supply pump is mounted directly upon an external surface portion of the pump mounting plate in a surface-to-surface manner such that heat generated internally within the melter container is effectively transferred by conduction from the melter container and through the pump mounting plate such that the temperature level of the output pump is elevated to, and maintained at, a predeterminedly desired level even when the pump, is not disposed in its output dispensing mode.

Abstract: A reciprocating plunger-type valve mechanism or assembly, which can be utilized in conjunction with adhesive dispensing applicators to control the dispensing of adhesive compositions which are to be used in connection with the bonding, securing, or fixation of pavement markers to road pavement surfaces, is disclosed. The mechanism or assembly comprises dual shutoff locations in connection with the supply of the incoming adhesive material so as to effectively reduce the prevailing pressure upon the shutoff blade controlling the adhesive material dispensing/discharge port whereby soft pressure starts and controlled deposition quantities are enabled while the generation of residual adhesive material or splatter is avoided.

Abstract: A reciprocating plunger-type valve mechanism or assembly, which can be utilized in conjunction with adhesive dispensing applicators to control the dispensing of adhesive compositions which are to be used in connection with the bonding, securing, or fixation of pavement markers to road pavement surfaces, is disclosed. The mechanism or assembly comprises dual shutoff locations in connection with the supply of the incoming adhesive material so as to effectively reduce the prevailing pressure upon the shutoff blade controlling the adhesive material dispensing/discharge port whereby soft pressure starts and controlled deposition quantities are enabled while the generation of residual adhesive material or splatter is avoided.

Abstract: Apparatus for filling tubular dispensing cartridges with paste or viscous fluid comprises a mandrel adapted for a sliding fit within the cartridges, the mandrel having an axial fluid passage and a parallel air passage which extends from the mandrel top to an radial opening near the mandrel bottom surface. A pneumatic control system controls the amount of paste or fluid by sensing the flow of air through the air passage. If air passes through the passage, the fluid valve is closed; if air is blocked by a cartridge on the mandrel, the fluid valve is enabled and a manual control valve may be used.

Abstract: Full pages of books may be photocopied without damage to the book bindings by placing the open book on a wedge of fiber optics perpendicularly aligned to the copier platen to optically couple the photocopier to the book pages.

Abstract: A fluid agitator and pump assembly for thoroughly mixing fluids with heavier materials that settle to the bottom of the chamber. The chamber is tubular and stands vertical with two motors on the top surface; one motor rotates an axial tube having radial mixing blades at the chamber bottom, the second motor drives a coaxial shaft running through the tube to a pump. In one embodiment, the pump is a piston pump and the second motor reciprocates a piston on the bottom of the coaxial shaft. In a second embodiment, the second motor rotates the drive shaft for driving a rotary pump.

Abstract: A pneumatically operated pump for dispensing controlled shots of paste material includes a disposal paste syringe tube having a ferrule with an axial dispensing hole centered in the bottom. An axial movable plunger extending through the length of the syringe normally fits into and blocks the dispensing hole, but when the punger is lifted a predetermined amount, the paste under a small pressure flows into the space and, when a driver returns the plunger to its normal position, the paste column is shot through the dispensing hole. The driver for moving the plunger includes a spring loaded diaphram center connected to the drive end of the plunger. Applied air pressure against the diaphragm lifts the plunger and compresses the spring. On release of the pressure, the spring rapidly drives the plunger back to its normal position to dispense a small column of paste.