Abstract: An electrically conductive powder having good stability against oxidation, good storage stability, good in anti-migratory action and capable of constituting electrically conductive composition having high electrical conductivity and good resistance to heat and the wet, may be constituted by copper particles, a silver coating material coating a part or the total of the copper particles and a titanate coupling agent combined to the copper particles and/or the silver coating material.

Abstract: A speed regulating governor system is disclosed for a small internal combustion engine having a throttle valve the position of which affects the speed of the engine, wherein the governor system includes a mechanical proportional controller and an electromechanical integral controller. The throttle valve is mechanically linked to and controlled by a governor lever that is acted upon by opposing forces provided by a mechanical speed selector and a centrifugal flyweight apparatus which measures the engine speed. Additonally, a solenoid actuator is operably connected to the governor lever to apply a force thereto in response to a control signal generated by an electronic integral controller. The control signal is proportional to the time integral of the difference between a desired electrical speed input and the actual speed of the engine measured by an electrical signal generated by an alternator driven by the engine.

Abstract: A high-pressure, continuous-delivery piston pump, controlled as a function of engine speed and load, supplies fuel to an accumulator supplying injectors. On the intake side of the pump, there is provided a throttle for metering the amount of fuel supplied by the pump. Via operating signals, the throttle is regulated by an electronic control device in such a manner as to supply the pump and pressurize only the amount of fuel strictly required for operating the injectors and the engine, thus eliminating any energy losses caused by fuel feedback to the tank, and drastically reducing fuel consumption.

Abstract: A fuel cap has an anti-splash attachment which includes an outer splash-back baffle, an inner foam plug element and a retainer post which supports the outer baffle and inner plug element and tethers them by a releasable snap-on connection to an inner baffle-supporting stem of the fuel cap. The inner plug element when substantially dry is in a contracted state wherein it is smaller in diameter than the inside diameter of the fuel tank filler neck to which the fuel cap is applied. An annular gap is then present between the exterior side surface of the plug element and the interior surface of the filler neck, making it easy to insert and withdraw the fuel cap with the anti-splash attachment thereon into and from the filler neck.

Abstract: A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, a main bearing frame member, and a crankshaft. An oil sump is located in a discharge pressure chamber in the housing. The frame member and fixed scroll member define a suction pressure chamber in which the orbiting scroll member is disposed. The crankshaft includes a plate portion disposed between the orbiting scroll member and a thrust surface of the frame. Flexible annular seals are disposed within respective interfaces between the orbiting scroll member bottom surface and the plate portion top surface, and between the plate portion bottom surface and the frame thrust surface. The seals provide sealing between a radially inner, oil-filled discharge region and a radially outer suction region, and actuate to compensate for axial space in the interfaces.

Abstract: A hermetically sealed rotary compressor is disclosed wherein gas compressed within a compression chamber defined by a cylinder block is discharged through respective discharge ports in the main and outboard bearings defining the ends of the cylinder. Mufflers are provided on the outside ends of the bearings into which the compressed gas is expanded. A constricting gas passageway extending through the bearings and the cylinder block provides a path for constricted flow of gas from one muffler to the other. The constricted gas expands upon entry into the other muffler, thereby providing a cooler recombined discharge gas for use in cooling oil in the oil sump and cooling the motor stator windings.

Abstract: A food preparation oven includes an enclosure defining a chamber for receiving a food product therein. A heater and a fan are provided for heating and recirculating the air within the chamber. A foraminous wire mesh conveyor loop passes through the chamber for supporting and transporting a food product in and through the chamber. A plate having an upper infra-red radiant emissive surface is disposed within the conveyor belt loop. A plurality of lower duct fingers located below the conveyor belt loop communicate with the outlet of the air recirculating fan and are configured for directing columnated jets of hot air upwardly through the lower loop portion of the conveyor belt loop such that the hot air impinges on the lower surface of the radiant plate. After heating the radiant plate the hot air passes around the edges thereof and enters a plurality of upper return duct fingers disposed above the coveyor belt loop. The upper return duct fingers area in communication with the inlet of the air recirculating fan.

Abstract: A lubrication system for the valve actuating mechanism of an internal combustion engine having a vertical drive shaft and horizontally oriented cylinder includes a rocker box housing the valve actuating mechanism with the valve actuating mechanism including a lower rocker arm and an upper rocker arm each oriented for rocking in a substantially horizontal rocking plane. A push rod cavity communicates at one end with the crankcase and at the other end with the rocker box. A cam shaft gear disposed at a lower end of a vertical cam shaft slings liquid oil from the crankcase through the push rod cavity into the rocker box. A dam is provided for retaining liquid oil in the rocker box at a level which partially submerges the lower rocker arm such that the rocking motion of the lower rocker arm splashes dammed oil to lubricate the valve actuating mechanism.

Abstract: A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, a main bearing frame member, and a crankshaft. The frame member and fixed scroll member define a suction pressure chamber in which the orbiting scroll member is disposed. The crankshaft includes a plate portion disposed between the orbiting scroll member and a thrust surface of the frame. Oil chambers are disposed within respective interfaces between the orbiting scroll member bottom surface and the plate portion top surface, and the plate portion bottom surface and the frame thrust surface. Oil at discharge pressure from an oil sump is supplied to the oil chambers. The oil chambers communicate with one another via a pressure equalization port extending through the plate portion.

Abstract: A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, a main bearing frame member, and a crankshaft. An oil sump is located in a discharge pressure chamber in the housing. The crankshaft is journalled by bearings in the frame member and the orbiting scroll member. A centrifugal oil pump supplies lubricating oil from the sump to the bearings through an axial passageway in the crankshaft. A vent allows the pumped oil to return to the sump to reduce leakage of oil and refrigerant into regions at suction pressure.

Abstract: A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member, an orbiting scroll member, a main bearing frame member, and a crankshaft. An oil sump is located in a discharge pressure chamber in the housing. The frame member and fixed scroll member define a suction pressure chamber in which the orbiting scroll member is disposed. The crankshaft includes a plate portion disposed between the orbiting scroll member and a thrust surface of the frame. Oil chambers are disposed within respective interfaces between the orbiting scroll member bottom surface and the plate portion top surface, and the plate portion bottom surface and the frame thrust surface. Oil from the oil sump is supplied to the oil chambers. Either a hydrodynamic oil seal or an annular seal element is provided in each interface radially outwardly from the oil chamber.

Abstract: The disclosure relates to a tube coupling (10) for a tube (11) comprising a body (12) having a throughway (13) to receive the tube through an opening (24) at one end of the body with a multi-fringered collet (26) in the open end engageable with a tapered cam surface (25) in the throughway to lock a tube in the throughway. The coupling body is formed in two parts comprising a main section (12a) in which the throughway is enlarged at (18) to receive a seal (19) for the tube and a subsidiary section (12b) in which the tapered cam surface (25) and open end (24) of the body are formed. The main section of the body is formed in a deformable metal and has a socket (30) encircling the throughway which is initially formed with a parallel sided wall (21).

Abstract: A method of making a carburetor by first extruding a length of material and then cutting a carburetor body of predetermined length from the extrusion. The extrusion includes a passageway. A venturi member is molded of plastic material and inserted in the passageway. A fuel bowl is molded from plastic material and is secured to the body by means of a resilient clip.

Abstract: An adjustable valve lash train for an overhead valve engine includes a rocker arm stud having a threaded shank received in a correspondingly threaded bore in said cylinder head. The rocker arm stud includes an integral head having a spherically shaped bearing surface on the undersurface thereof in engagement with a correspondingly shaped bearing surface on the rocker arm. The head of the rocker arm stud includes a hexagonally shaped recess in the top surface thereof for receipt of an adjustment tool. A threaded jam nut is received about the threaded shank of the rocker arm stud for selectively locking the threaded shank against rotation with respect to the threaded bore of the cylinder head. A push rod guide plate is sandwiched between the cylinder head and the jam nut adjacent the shank of the rocker arm stud for controlling lateral displacement of a push rod.

Abstract: A gas power burner having a burner tube closed at one end and a venturi tube disposed within the burner tube with the mouth portion of the venturi tube disposed toward the closed end of the burner tube. The burner tube is provided with an air aperture in a side thereof at a position along the burner tube intermediate the mouth portion and the burner head portion of the venturi tube. A blower blows air into the air aperture of the burner tube where the air divides into a first pathway traveling toward the closed end of the burner tube and into the mouth of the venturi tube and also traveling in a second pathway toward the open end of the burner tube. The air traveling in the primary and secondary pathways provides combustion air for a flame burning at a burner head portion of the venturi located within the outer burner tube.

Abstract: A hermetically sealed scotch yoke compressor assembly is disclosed wherein a crankcase includes annular channels formed on the top and bottom surfaces thereof defining muffling chambers. Gas refrigerant compressed within radially disposed cylinders into cylinder head covers is channeled into the upper annular muffler chamber and them through passages extending through the crankcase into the lower muffling chamber. An annular cover plate for covering the bottom annular channel is attached to the crankcase at its radially inner extreme and is biased against the crankcase at its radially outer extreme. Spacers between the cover plate and the crankcase provide an annular discharge opening directing discharge gas onto the motor windings.

Abstract: A protective cap for the hermetic terminal of a hermetic compressor includes a cup-shaped plastic member for attaching to and covering the hermetic terminal during manufacturing, shipping, and storage of the compressor, i.e., whenever the hermetic terminal would not otherwise be connected to an external source of power. The cap contactingly engages the base portion and conducting pins of the hermetic terminal. The protective cap includes a cylindrical stud portion arranged coaxially within an outer cylindrical wall portion of the cup-shaped member. The stud portion slip fits radially inwardly of the circularly arranged conductor pins of the hermetic terminal. A tapered end facilitates guided insertion of the stud portion within the conductor pins prior to engagement of the cap with the hermetic terminal base portion.

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: A pressure relief valve for a hermetically sealed reciprocating piston compressor is made in which a bore in a compressor cylinder head defines the valve body. Valve components are introduced into the bore through a valve opening on the bottom surface of the cylinder head. A discharge pressure chamber in the cylinder head also has a discharge pressure opening on the bottom surface. A path is provided between the valve opening and the discharge pressure opening, when the compressor is assembled, by means of a duct in a valve plate interposed between the cylinder head and a compressor crankcase. Also disclosed is a method for assembling the pressure relief valve in a cylinder head, whereby the valve components are temporarily retained within the bore by a washer-shaped soft metal valve seat that is compressed and expanded into an annular undercut or recess in the bore located adjacent to the bottom surface of the cylinder head.

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.