Abstract: A fluid pump for delivering accurate volumes of high-pressure fluids is obtained using an intensifier to supply the majority of the motive power required to displace the fluids. The intensifier balances the forces between the output pressure of the displaced fluid (above a convention drive piston) with a large diameter booster piston that is driven pneumatically by low-pressure gas. A small horsepower motor provides needed power to overcome the friction of the high pressure gas pump, the differential pressure needed for the use of the pump, and to accurately control or trim the high-pressure output or rate to a precise value. A ball screw and spur gears are used to transmit the power. The pump is uniquely designed to reduce the stress from the motor to the components.

Abstract: Briefly, the present invention comprises a combined mechanical shifting mechanism and pneumatic pilot valve construction to contrl the cycling of a double diaphragm pump. The mechanical cycling or shifting mechanism is positioned between pressure chambers of the diaphragm pump in the pump housing and extends axially into one or the other pressure chamber. The shifting mechanism moves axially in response to engagement by one of the pump diaphragms. Upon engagement by a diaphragm, the mechanical shift opens fluid pressure passageways to a pneumatic pilot valve which controls fluid flow to the respective pressure chambers associated with the diaphragm pump. A positive pilot signal is thus supplied through the entire stroke or cycle of the diaphragm pump. The mechanical shifting mechanism is not connected directly to a diaphragm or to the connecting rod which connects the diaphragms.

Abstract: A pair of thrust washers support the lower end of a crankshaft for rotation in a bearing in a hermetic refrigerant motor compressor and also provide a combination of oil passages for supplying lubricating oil to a pump in a crankshaft and from the pump to the bearing.

Abstract: A scroll-type compressor has a stationary scroll and a moving scroll which is orbitted about the center of the stationary scroll. A valve chamber, a first by-pass, and a second by-pass are formed in the end plate of the stationary scroll. The first by-pass communicates between the inside of the valve chamber and one of the compression chambers formed by the scrolls, and the second by-pass communicates between the inside of the valve chamber and the outside of the end plate of the stationary scroll. The valve chamber houses a plate-shaped valve which is moved by fluid pressure between a closed position, in which it blocks the by-passes, and an open position, in which working fluid can flow between the two by-passes. Working fluid at either discharge pressure or suction pressure can be introduced into the valve chamber to the rear of the valve through a connecting pipe which is connected to the valve chamber and a 3-way solenoid valve.

Abstract: A hermetic compressor assembly is disclosed including a compressor mechanism and an electric drive motor within a hermetically sealed housing. The electric motor includes a rotatable rotor and a stator. In one disclosed embodiment, the stator is friction fit within the housing and a rotor is press fit over a crankshaft journalled in a crankcase of the compressor mechanism. The crankcase is selectively positioned within the housing and mounted thereto by means of mounting pins. In another disclosed embodiment, the motor is mounted to the compressor mechanism and the compressor crankcase is axially supported in the housing. A mounting pin is used to prevent rotation of the compressor mechanism within the housing caused by torque forces produced by dynamic operation of the motor. The disclosed mounting pins are received within holes in the crankcase and extend radially outwardly through oversized apertures in the housing. The pins are selectively positioned in the apertures prior to welding.

Abstract: A rotary apparatus uses vanes which oscillate with respect to one another, while simultaneously rotating within a chamber, to compress a gas or pump a liquid. The oscillating motion results from interaction of at least a single coupled pair of elliptical drive members. When the driver elliptical member is rotated at a constant angular velocity, it causes the driven elliptical member to rotate with a varying angular velocity. As the driven elliptical member is connected to at least one vane, that vane also rotates with a varying angular velocity. In a preferred embodiment, two pairs of meshing elliptical gears drive four vanes with an oscillating and rotating motion.

Abstract: A compressor assembly is disclosed including a compressor mechanism mounted within a hermetically sealed housing. The compressor mechanism includes a crankcase having a suction inlet opening providing communication into a suction cavity within the crankcase. A suction line adaptor is provided for attaching to a suction line of a refrigeration system to introduce suction gas into the suction inlet opening. The suction line adaptor includes a fitting mounted to the sidewall of the housing. The fitting defines a bore communicating through the housing wall. A radially outwardly extending annular groove is provided in the sidewall of the bore. A section of tubing having a washer-shaped flange at one end thereof extends between the fitting and the suction inlet opening. The tube section end opposite the flange is sealingly received at a variable depth within the suction inlet opening using an O-ring seal. The other end of the tube section is received within the bore with the flange received within the groove.

Abstract: A releasable cargo anti-skid block for gripping the cargo bed of a vehicle comprises a rigid body having a cargo engageable upstanding side and a cargo bed engageable bottom. The bottom and upstanding side join at a corner edge. Gripping apparatus on the bottom of the body extends lengthwise along the bottom. The gripping apparatus are fixed with respect to the body for forcibly but releasably gripping the surface of the cargo bed of the vehicle.

Abstract: An improved hand carried stick is provided for law enforcement personnel serving them as a billy, night stick, or baton, in the conventional way, with the additional self contained operational provisions when selectively activated via finger tipped switches, of: daylight or nighttime random threatening sparking along the projecting length portion thereof, a concentrated continuous ring like threatening sparking around the projecting end thereof, and/or the emitting of a temporary blinding laser beam of light from the projecting end thereof. The blinding of a person lasts only during the operation of this laser light of the improved hand carried stick, when a person or persons must be threatened to be subdued or be subdued by a person charged with law enforcement. The self contained electrical energy of this baton is supplied by one of two 9 volt direct current batteries.

Abstract: The invention is directed to a transmission assembly comprising: a power output delivery end and a power input end; a pocket bearing operative between the power delivery end and the input end of the transmission; a lubricant containing housing remote from the pocket bearing in the transmission; a lubricant conduit system extending from said housing to said power input end of the transmission; a lubricant pump in said housing responsive to transmission operation for throwing lubricant outwardly under pressure within said housing; and a lubricant collector in said housing in the path of the lubricant thrown out by said pump, said collector directing the lubricant under pressure into said conduit system for delivery into said power input end of the transmission for supplying lubricant under pressure to reach said pocket bearing.

Abstract: There is provided an improved fluid pumping device including an enclosure to be placed downhole in a well. A first hollow tube is received in the enclosure and extends to the surface of the well for removing fluid from the well. A second hollow tube also extends into the enclosure for forcing a gas into the enclosure. The bottom of the enclosure has an opening for permitting fluid to enter. A mechanical mechanism is provided for forcing the closing of the opening in the enclosure so that the device may be utilized in deep wells where high fluid pressures occur.

Abstract: The invention provides a hand-operated pump for fluids in general, which comprises a body inside which a cylindrical hollow is provided, inside which a plunger is slidingly mounted, such a plunger dividing said hollow into a first variable-volume chamber and a second variable-volume chamber, said pump comprising unidirectional valve means which control the intake of fluid from the outside into said chambers, and the delivery of fluid from said chambers to the outside, said plunger being suitable to be reciprocatingly driven by means of an outer handle according to a to-stroke during which the handle is taken away from the pump's body, during said to-stroke fluid being intaken from the outside into the second chamber, and fluid being delivered from the first chamber to the outside, and according to a fro-stroke, during which the handle is approached again to the pump's body, during said to-stroke fluid being intaken from the outside into said first chamber, and fluid being delivered from the second chamber to

Abstract: In a rotary compressor, a relief valve for providing refrigerant at suction gas pressure to the discharg port when the rotary compressor is operated in the reverse rotation direction. The relief valve includes in the preferred embodiment a passage for providing a source of refrigerant at suction pressure, a pressure responsive relief valve, and a passage for providing refrigerant at suction pressure from the relief valve to the discharge port. When the compressor system is operated in the correct rotation, refrigerant at discharge pressure maintains the relief valve in the closed position, preventing flow from the discharge port to the suction pressure source. When the compressor system is operated in the reverse rotation however, the pressure in the discharge port is reduced to below that of the refrigerant in the suction pressure source, whereupon the releif valve opens permitting flow from the suction pressure source to the discharge port.

Abstract: A hatch cover arrangement for a railroad car or the like and method of making the same as well as a railroad car utilizing such hatch cover arrangement are provided, the hatch cover arrangement comprising the combination of a hatch cover and a holddown bar for the hatch cover. The holddown bar has opposed ends one of which is adapted to be pivotally mounted to the car and the other of which is adapted to be releasably latched to the car while a medial portion thereof intermediate the opposed ends thereof extends transversely across the hatch cover, the holddown bar and the hatch cover comprising a one-piece homogeneous member formed of polymeric material.

Abstract: A compressor assembly is disclosed including a compressor mechanism mounted within a hermetically sealed housing. The compressor mechanism includes a crankcase having a suction inlet opening providing direct communication into a suction cavity within the crankcase. The compressor mechanism is located in an upper chamber of the housing and a motor is located in a lower chamber, the entire interior of the housing being at discharge pressure. Suction gas is isolated from the motor so that heat from the motor does not increase the temperature of the suction gas. The discharge tube is positioned in the lower chamber so that discharge gas flows over the motor to cool it, thereby improving efficiency.

Abstract: An improved positive displacement rotary pump, such as a gerotor pump, having an axial housing inlet opening with an outer radial edge extending inside the radial outer extent of the rotating fluid in the pump such that at design speed, the fluid pressure due to rotation of the fluid, does not cause fluid to move back into the inlet. Otherwise, the inlet is maximally open to allow maximum filling efficiency.

Abstract: A direct suction hermetic compressor assembly is disclosed including a hermetically sealed housing having enclosed therein a compressor mechanism discharging compressed gas refrigerant into the interior of the housing, thereby creating a high pressure housing. The compressor mechanism includes a crankcase defining a suction cavity into which low pressure suction gas is directly introduced. Bearings in the crankcase communicate between the housing interior and the suction cavity, and rotatably support a crankshaft. Annular seals received within grooves in the crankshaft bear against the bearings and are actuated and lubricated by oil fed from within the grooves to prevent high to low pressure gas leakage and to facilitate bearing lubrication. A scotch yoke mechanism operably couples a plurality of radially disposed pistons to a crankshaft eccentric portion within the suction cavity. Oil ducts open onto the loaded surface of the eccentric to limit oil leakage into the suction cavity.

Abstract: An oil pump organization for an internal combustion engine is described in which the pump rotor is operatively connected to a transmission gear shaft in order to eliminate the need for a pump drive shaft and to thereby reduce engine space requirements.

Abstract: A scotch yoke compressor assembly is disclosed wherein four radially disposed pistons reciprocate in cylinders defined in a crankcase. In a central portion of the crankcase, a scotch yoke mechanism operably couples the pistons to an eccentric portion on a rotating crankshaft. Each piston includes suction ports extending therethrough and a suction valve on the piston head. The suction valve is operably retained on a piston head and the piston is attached to a yoke member by a single bolt. The bolt head is received within a recess coined in a valve plate interposed between the crankcase and a cylinder head cover. Circularly arranged discharge ports in the valve plate are opened and closed by an annular discharge valve guidedly retained against the valve plate at diametrically opposed locations, by a combination of guide pins and an annular retainer member.

Abstract: A roller pump is provided with a driving mechanism; a rotating shaft rotatably driven by the driving mechanism; a pump head that includes a sleeve which is unrotatably arranged in the outer periphery of the rotating shaft, and through which the rotating shaft is inserted, and a cylindrical stator fixed outwardly and radially to the sleeve and coaxially with the same; a tube for fluid transfer supported on the inner peripheral surface of the stator; a rotor rotatably fitted with the outer periphery of the sleeve of the pump head and including at least one rotatable roller opposite to the stator; the tube being clamped between the roller and the stator; and transmitting mechanism for transmitting rotation force for the rotating shaft to the rotor.