Abstract: A tie rod type cylinder valved at its lower plate and having a receiver on its upper plate. A rod-less trunk-like piston containing an inlet valve with a stem projecting out of the cylinder and connected with an actuator. The piston face having an opening acting as a valve seat. A capillary vent tube connecting the top of the cylinder with the mouth of the receiver. When the cylinder is filled to a stop, the actuator is activated, which closes the inlet valve and drives down the stem/valve/piston and it evacuates the cylinder. A flexible discharge line conveys the liquid into a nearby drain pipe or receptacle.

Abstract: The pump apparatus comprises a pump, suction device and a pressure container. The suction device is constructed as a structural unit and can be inserted coaxially from above into the pressure container. The pump likewise is constructed as a structural unit which can be inserted from above with self-centering and self-sealing connections coaxially into a hollow compartment of the suction device and is connectable therewith. By means of threaded bolts which, upon lowering the suction device, piercingly extend through bores provided at a ring flange of the suction device, the inserted suction device can be connected with the pressure container. If the need exists this can be accomplished by remotely controlled manipulator expedients.

Abstract: A portable air compressor driven by an electric drill is disclosed. The compressor is rugged, reliable, and designed for economical mass-production for widespread marketing to professional mechanics and do-it-yourself home craftsmen. In one embodiment, a pair of "clam shell" mating housing halves enclose the crankcase and cylinder. In another embodiment, the "clam shell" halves are molded from a plastic material and are mounted on the rearward portion of a die-cast cylinder housing.

Abstract: A diaphragm pump is mounted on a frame or bracket. The inlet of the diaphragm pump connects with a flexible hose or tubing having a probe designed to fit into a vehicle fluid passage such as the dip stick passage associated with the oil pan of a vehicle. The outlet to the diaphragm pump is connected to one of a pair of based hollow tube members designing part of a bracket for support of the pump. Each hollow tube has a generally S shape configuration and is connected to the other tube by cross braces. One of the hollow tubes has the dual function of acting as a support bracket for the diaphragm pump assembly and as a fluid conduit, which is connected to the diaphragm pump outlet at one end and defines a discharge passage into a container at the opposite end. The bracket assembly may thus be supported on a drum or other container by the bracket members with one of the bracket members serving as the discharge tube into the container.

Abstract: A free piston to be slidably inserted in the cylinder of an electromagnetic reciprocating compressor. The piston has a partition wall dividing the inner space of the cylinder into chambers, and a rod connected to the partition wall. The partition wall has an air hole. A valve member is attached to the front surface of the partition wall, and usually closes the air hole of the partition wall. The rod extends rearwardly from the rear-end surface of the partition wall. The rod has a substantially conical hole which extends rearwardly from the front-end surface of the partition wall. The piston further comprises a retainer cap closing the opening of the substantially conical hole and holding the valve member in an openable condition.

Abstract: A double-diaphragm pump is designed to be molded almost entirely out of plastic and is provided with totally externally-accessible and serviceable check valves which do not require any significant disassembly of the pump itself. The pump is also fitted with a diaphragm which is formed from a uniform thickness of material and which have convolutions which are equally disposed on either side of the angle of elevation of the unstressed diaphragm. The pump is designed for mounting on top of a barrel or drum and has a set of radiused feet so as to fit snugly against the rim in an inlet pipe which fits into a bung plug having an eccentric opening such that the opening grips the inlet pipe and the plug may be rotated so as to snugly position the pump against the rim of the drum. The air valve to the pump is provided with U-cup seals in the housing.

Abstract: Liquid is removed from a remote location, with control of the system responsive to the supply of the liquid to be removed. Control is accomplished without the need for electrical devices at the remote location by means of a valve in the remote location in the conduit circulating a powering fluid to a pump at the remote location, and the sensing of the accompanying changes in flow or pressure in the powering fluid conduit or output conduit.

Abstract: Method and apparatus for changing oil in an internal combustion engine pierces an outer wall of an old oil filter containing old motor oil to form an opening in a lower portion of the filter wall. Old motor oil is drawn from the pierced oil filter into a container by suction through the filter wall opening and a suction conduit. The oil drain plug from a crankcase containing old motor oil is removed to form a drain opening in the crankcase, and old motor oil is drawn from the crankcase into a container by suction through the drain opening and a suction cup, to empty the crankcase of old motor oil. The drain opening is closed after emptying the crankcase of old motor oil by securing the drain plug in the drain opening. The pierced and drained old oil filter is replaced with a new filter and the drained crankcase is refilled with fresh motor oil.

Abstract: This invention relates to ejector pumps, thrust- and lift-augmenting ejectors, and, more generally, to devices that are capable of inducing the flow of a fluid through direct transfer of energy and momentum to it from jets of another fluid. The efficiency of the energy exchange is increased if it is made to take place, at least in part, through the nondissipative work of interface pressure forces. This invention describes a method and apparatus for the generation, control, and utilization of this nondissipative component. The method described here imparts a transverse, paddle-like motion to the energizing jets without, however, imparting the same motion to the fluid particles that make up the jets themselves, hence at no cost in energy input. Energy is transferred from these "fluid paddles" to the surrounding fluid largely through the work of interface pressure forces.

Abstract: A vacuum breaking device for an ejector pump is provided. The vacuum breaking device according to the present invention features that it is provided with a movable sealing valve for blocking the outlet port of the ejector hole of the pump when a vacuum generated in a system within the pump is be broken. The valve is arranged in opposite relationship with the ejector hole of the pump and shifts to block the outlet port due to the pressure of compressed air supplied to the air sucking chamber of the pump so that the leakage of the vacuum breaking compressed air from the ejector hole is prevented thereby increasing the efficiency of vacuum breaking operation. The vacuum breaking device is applicable to a vacuum sucking device for attracting and sucking an article so as to transfer it to a desired place.

Abstract: In an engine lubrication an external bypass mechanism for venting pressurized liquid around the lubricated areas, whereby the high side pressure is maintained within a desired range. The bypass mechanism includes a pressure regulator that has variable pressure setting.

Abstract: The low-noise pump assembly (10) comprises a unitized assembly wherein a drive shaft (17) of the motor (16) is mated directly with an eccentric coupling (23). The eccentric coupling (23) has a through bore (21) which receives at one end the drive shaft (17) and at the other end a center post (30) of the pump housing. Disposed between the center post (30) and eccentric coupling (23) is a radially inner bearing mechanism (60), and disposed between the exterior of the eccentric coupling (23) and an opening (52) of a ring member (50) is a radially outer bearing mechanism (70). The ring member (50) engages at least one reciprocating piston assembly (45). Rotation of the drive shaft (17) causes rotation of the eccentric coupling (23) to effect reciprocating motion of the pump piston (48).

Abstract: A vacuum generating device for an ejector pump is provided. The vacuum generating device according to the present invention comprises an ejector pump mechanism having on one of the side surfaces thereof with an air intake port, air inlet port and exhaust port and attached with a fitting base including an air intake pipe, inlet pipe and exhaust pipe capable of connecting to the ports of the ejector pump mechanism, respectively. The device according to the present invention can be effectively used as one of the units of a vacuum generator assembly in a compact form in which the fitting bases of the units are arranged adjacent to one another with the inlet and exhaust pipes thereof held communicating with each other, respectively, whereby the number of pipes is minimized and the noise level from the assembly is reduced. The device or the assembly is applicable to a sucking device for attracting and sucking an article so as to transfer it to a required place.

Abstract: This invention comprises a birotational pump for the movement of air fluid through a conventional pumping mechanism. It is comprised of cylindrical piston housing, a pump shaft running through the piston housing, a piston linkage assembly secured to the pump shaft, a pair of valve plates which cover the ends of the piston housing and a cylindrical pump housing surrounding the piston housing to allow for the free movement of the piston and piston linkage. This invention will permit the free flow of fluid or air through the piston housing by creating a suction chamber in the piston housing. The fluid enters the valve plates which contain openings which line up with openings in the piston housing. As the shaft rotates the openings on the first end of the piston housing cease to line up with openings in the piston housing and openings in the second end line up to expel the fluid contained within the chamber of the piston housing cirutier of rotation of shaft can be changed.

Abstract: The structure consists in a casing, the interior of which affords a chamber for the compressor and a housing for the motor, separated in fluid-tight fashion by a bulkhead through which a sealed passage is offered to the shaft of the compressor; such a casing also exhibits a set of galleries arranged peripherally around the housing, along which the refrigerant is able to flow and thus keep the motor at a given temperature.

Abstract: A valve plate for a motor compressor has a continuously smooth figure-eight shaped port for reducing stresses along the primary longitudinal axis of a reed valve associated with the port, and an arrangement for providing a mechanical interlock for a head gasket to inhibit pressure loss between adjacent compressor cylinders.

Abstract: A golf game device comprises a base unit side to carry a simulated ball and provide a horizontal pad section simulating a driving surface. A stant unit is sized to receive the feet of the golfer in this stance when the base unit is positioned to one side of the stand unit for driving of the simulated ball. The stand unit is formed as a case into which the base unit can be inserted. A separate arm carries a display head which can be attached to one side of the base unit by a receptacle on the base unit or can be attached to the opposed side of the base unit so the base unit can be used either by left handed or right handed golfer with a display head facing inwardly toward the golfer. The display head includes only a simple digital distance display together with LED hook and slice display and a speaker to generate a string of pulses simulating ball flight.

Abstract: A method and apparatus is disclosed for preventing leakage of a fluid such as a lubricant from a gear case. In this method and apparatus, the ambient pressure inside the gear case is maintained slightly lower than the air pressure outside the gear case. By maintaining this pressure differential, air flows from outside the gear case into the gear case through any openings from which lubricant would otherwise leak. Leakage of the lubricant through such openings in the gear case is thereby prevented.

Abstract: A pumping mechanism comprising a flat base having a central vertical post and a pair of reciprocal pumping elements mounted on the flat base and situated on either side of the central post. Each of the pumping elements comprises an upper moveable assembly and a lower fixed assembly which slidably accepts the lower portion of the upper movable assembly. A driven member pivotally mounted at the midpoint of its length on the central vertical post has each end pivotably connected to each of the reciprocating pumping elements. The driven member serves to raise and lower the pumping elements in a smooth and steady fashion. A pair of collapsible piston assemblies are located within the upper movable assemblies of the reciprocal pumping elements and are collapsed and formed at the top and bottom of each stroke of the pumping elements.

Abstract: An oil ejector for conveying a quantity of oil under pressure to a region to be lubricated, the including a nozzle member (4,18) having an inlet end for receiving a supply of oil under pressure and an outlet end for ejecting oil supplied to the inlet end, the outlet end having an outlet passage (6,20) through which oil is ejected at a higher velocity and lower pressure than the oil entering the inlet end, the ejection pressure being a function of outlet passage (6,20) cross-sectional area, wherein the nozzle member (4,18) includes, at the outlet end, a fixed part (4) having at least one opening (6) and a movable part (18) mounted to the fixed part (4) for movement transverse to the ejection direction and having at least one opening (20) at least partly overlapping the opening (6) in the fixed part (4), with the region of overlap between the openings (6,20) defining the outlet passage (6,20), and the ejector further includes a remotely actuatable displacing mechanism (24,26) coupled to the movable part (18) fo