Abstract: Disclosed is an EGR system of an internal combustion engine, in which a part of the exhaust gas is drawn out from an exhaust pipe and returned to an intake pipe through a control valve, and a reference pressure in the intake pipe corresponding to the amount of recirculated exhaust gas, predetermined by experiment (beforehand) in various combinations of engine intake air flow and speed, is memorized in a memorizing device. The reference pressure responding to the amount of sucked air being introduced into the engine and the engine rotating speed in the case of actual operation of the engine is read out from the memorizing device and, then, compared with the real pressure in the intake pipe in the case of actual operation of the engine.

Abstract: A high pressure fuel injection system includes a pump-type fuel injection nozzle assembly provided with a sliding control valve which admits pressurized fuel or opens a return channel. A pressure chamber situated near the end of the needle valve of the nozzle remote from its seat is connected via a bypass channel with a region downstream of the sliding valve for the purpose of exerting a hydraulic closing force on the needle valve. The pressure in the bypass channel is controlled by the motions of the sliding valve. Alternatively, the additional hydraulic pressure may be exerted on the needle by an intermediate piston.

Abstract: A fuel metering valve assembly includes an air flow metering member which actuates the movable part of a fuel metering valve. Depending on the displacement of this movable part, two cooperating openings, a control slot and a shaped control orifice, together define the effective flow cross section for the fuel delivered to the engine. In order to improve the resolution of the path of the moving part of the valve assembly, one of the cooperating openings, e.g. the control orifice, is formed as a triangular opening in a sleeve or bushing surrounding an axially slidable shaft which supports the air flow rate-responsive member. The triangular opening may also be defined within the wall of the shaft. The width of the control slot is defined by a spacer ring between two coaxial partial bushings and one edge of the triangular opening is defined by the oblique line separating two partial sleeves.

Abstract: A control device for diesel-injection internal combustion engines, whose hydraulically activated adjusting member moves the regulating rod of the fuel injection pump in the "stop" direction when the discharge of the hydraulic medium is blocked by a magnetic valve, and simultaneously serves as an arbitrarily engageable full-load or delivery rate reducing stop for the regulating rod. The control device includes a first electromagnet, which activates the valve member of the magnetic valve, and a second electromagnet, whose control member limits the adjusting movement of the adjusting member, which can be controlled by the valve member of the first electromagnet, to a position that serves as the full-load or lower rate stop for the regulating rod of the injection pump, when the second electromagnet is engaged. This limitation takes place mechanically or by opening a return line, which determines the position of an adjusting piston that is connected with the adjusting member.

Abstract: A means for readily converting the ignition system of an existing internal combustion engine to a solid state capacitive discharge ignition system which comprises an auxiliary coil, a primary ignition coil and a secondary ignition coil wound on a single leg of a stator. The stator is designed with two additional mounting legs which adapt the stator for mounting on the existing structure of the engine and another leg adapted to cooperate with one of the mounting legs and the coil containing leg to complete a conductive path for a time varying magnetic flux.

Abstract: A rotary member is provided that includes a housing having a pair of rotors mounted therein, and wherein there is provided a shaft having a channel or passageway therein that selectively communicates with the chambers in which the rotors turn. The rotary machine is constructed and operates without the use of a crank shaft, cam shaft, and wherein the machine is air cooled.

Abstract: An internal combustion engine with a main combustion chamber defined by the cylinder and the piston has a separate ignition chamber located in the cylinder head which communicates with the main combustion chamber through a narrow channel. The channel terminates tangentially in the chamber and the flow of combustible mixture into the chamber generates therein a vortex which aids in ignition and combustion. The chamber includes spark-producing electrodes but does not receive additional fuel. In order to improve the ignition process, i.e., to lower the energy required for ignition, the walls of the ignition chamber are cooled to a controlled degree by changing the size of an air gap when the chamber expands or contracts, thereby changing the heat flow from the ignition chamber to the cooled portions of the engine.

Abstract: An archery bow arrow rest includes a hollow cylinder threaded externally for removable attachment in a threaded opening through the handle of an archery bow and threaded internally for removable attachment of a hollow, externally threaded guide sleeve which anchors a support plate and slidably guides a spring-loaded plunger for axial movement on the longitudinal axis of the cylinder. An arrow rest arm is mounted pivotally at one end on the support plate for arcuate movement in a plane disposed below and parallel to the axis of movement of the plunger, and is spring-loaded in a manner to return the arm to an intermediate, arrow supporting position.

Abstract: A burner of the air adjustment type using a liquid fuel includes a fuel chamber including a bottom wall, a peripheral side wall and at least one fuel gas opening on the top surface portion of the fuel chamber and a burner proper including a fuel chamber attachment, an inner gas chamber and a plurality of final gas openings arranged and distributed annularly on the ceiling wall of the gas chamber. The burner proper further includes variable air openings connected to the gas chamber, wherein an annular variable air passage surrounding the fuel chamber and being connected to the variable air openings at a position lower than the position of the fuel gas opening is formed between the inner face of the peripheral side wall of the gas chamber of the burner proper and the outer face of the peripheral side wall of the fuel chamber.

Abstract: An energy storage and distributing device having a heat storage chamber arranged for retaining heat which can be received from a solar collector arrangement or from a furnace or furnaces disposed within the chamber itself. Mounted on the chamber is a plenum arrangement disposed for directing warm fluid to a space to be heated, such as a room or rooms of a house, while a fluid distribution system is associated with the plenum and the chamber for alternately directing a fluid current directly into the plenum and directly into the chamber, and thereby supplying the plenum selectively with warm fluid from one of the chamber or from a source disposed outside the chamber. In this manner, solar energy, and the like, can be fed directly to the plenum, or stored in the chamber, or if solar energy is not available for whatever reason, and insufficiient heat energy is present in stored form within the chamber, a furnace or furnaces can be employed to supply the requisite heat energy.

Abstract: A novel solar collector is disclosed and described comprising a base and a plurality of upstanding walls extending about the perimeter of the base. An input and an output extend through the walls to communicate with a plurality of liquid conduits integral with the base. A transparent cover is secured to the upstanding walls for covering the base and the plurality of conduits. The conduits and the base with the upstanding walls are constructed of a one-piece molding of a curable material.

Abstract: A gravity-flow, sheet-flow solar heat collector wherein the heat-absorbent medium is a dark fluid having a minimum viscosity of about 10 centipoise at 120.degree. F.

Abstract: The invention relates to a solar energy collector or cell comprising a fixed spherical mirror placed on the ground by its convex face and a boiler in which circulates a heat-transfer fluid and which is movable about the center of the mirror. The boiler comprises a low concentration boiler surmounted by a high concentration boiler. The spherical mirror has a visor in the form of a spherical sector which moves on the periphery of the mirror.

Abstract: A postural drainage device for supporting a patient comfortably in a position in which mucus and other matter can drain by gravity from his respiratory system. The invention includes a first embodiment which is portable and collapsible and assumes a substantially A-shape when in use. The two side members of the A-shape are pivotally mounted to each other adjacent the apex of the A-shape and provided with an adjustable knee support mounted on one of the side members, a pair of spaced-apart hand grips positioned adjacent the apex of the A-shape, and a pair of adjustable shoulder supports mounted in a spaced-apart relationship on the other side member with a hole cut through that side member into the interior of the A-shape providing access to a tray placed on the transverse member of the A-shape. The hand grips extend slightly above the apex of the A-shape to help maintain the patient therebetween on the apex.

Abstract: A skin diagnosis system includes a scanning and optical arrangement whereby light reflected from each incremental area (pixel) of the skin is directed simultaneously to three separate light filters, e.g., IR, red, and green. As a result the three devices simultaneously produce three signals which are directly related to the reflectance of light of different wavelengths from the corresponding pixel. These three signals for each pixel after processing are used as inputs to one or more output devices to produce a visual color display and/or a hard copy color print, for one useable as a diagnostic aid by a physician.

Abstract: The invention provides for a therapeutic apparatus which includes a platform on which a person can be supported in a reclining position, and a support on which the platform is pivotally supported. The platform can pivot about a pivot axis between one extreme position in which a person on the platform is in a substantially upright standing position and another extreme position in which the person on the platform is in a substantially upright inverted position. The apparatus includes adjustment means by means of which the platform can be adjusted in at least two directions with respect to the platform to thereby adjust the position of the center of gravity of the platform and its load with respect to the fulcrum. The adjustment means for adjusting the platform in at least one direction effects infinite angular adjustment of the platform.

Abstract: An apparatus to massage a person's back which may be incorporated into a chair, or the like, and having a frame having a plurality of movable slats mounted transversely thereon and having a cover thereover. An electric motor is mounted to the frame and is operatively connected to an elongated cam rotably supported on the frame for rotation by the electric motor. The elongated cam is mounted adjacent to said plurality of slats and forms a helix on a shaft connected to the electric motor so that rotation of the elongated cam will raise and lower individual slats responsive to the cam pushing thereagainst.

Abstract: Method for implanting and subsequently removing mechanical implants of an Ni-Ti or a Ti-Nb alloy material which exhibits the memory effect which occurs due to heating of the implant to a temperature above the specific temperature for the alloy material. The memory effect is actuated by heating the implant after implantation of same in the living tissue, and upon completion of the healing process, the implant is substantially returned to its shape upon implantation by cooling it to a temperature below the temperature which actuates the opposite memory effect to facilitate removal.

Abstract: An accessory for a wheel chair for use by a patient seated therein and essentially a bib having a panel covering the chest and abdomen, a panel upon which the patient sits and a reduced crotch panel joining the other panels, with an absorbent pad covering the crotch panel and a unique adjustable belt to fasten the bib to the lateral upright members of the wheel chair, above the back rest of the chair, and quick attachment means for the rear lower end of the bib for connection to the standard rearwardly extending stub elements of the wheel chair frame used as pedals by attendants in tipping up the front of the wheel chair, the item being an effective patient supporting and restraining means.

Abstract: Ventricular ectopic heartbeats are detected by comparing the ECG wave for a current heartbeat with the ECG wave of a heartbeat considered to be normal for that patient. The waves are aligned with their fiducial points in time coincidence, and the fiducial points are located at the centroids of the ECG waves.

Abstract: An I.V. needle carrier assembly is disclosed which includes a delta-shaped base plate and an I. V. needle carrier-receiving barrel secured to the base plate and extending along the axis of symmetry thereof, so that the forward open end of the barrel resides at the apex of the delta. An I.V. needle carrier is slidingly received within the barrel and means are provided for sliding the carrier between a rearward position at which the needle tip is axially retracted within the barrel, and a forward position at which the needle tip is fully extended through the barrel front open end, whereby the needle may be inserted into the blood vessel of a patient. Adhesion means are affixed to the upper surfaces of the base plate at alternate sides of the barrel. These means include portions extendable beyond the lateral perimeter of the delta for anchoring the plate to the skin of the patient upon the needle being received into the blood vessel.

Abstract: A plastic container for a parenteral solution comprising a main body and a tubular portion extending downward from the lower end of the body and having a closed end openable by cutting, the tubular portion being formed in its outer peripheral surface with a groovelike recess for indicating the cutting position and reducing the wall thickness of the tubular portion at the cutting position; and a combination of the above plastic container and an administration device having one end to be liquid-tightly connected to the tubular portion of the container when it is opened and the other end having an injection needle.

Abstract: A holder for clamping in place a catheter or other hollow tube, such as a urinary catheter tube, a nasogastric tube or intravenous tube on a patient's body, which holder includes a pliant adhesive-bearing base which is adhered to the patient's skin. The holder is adjustable so as to be capable of holding the catheter tube against rotary and longitudinal movement, and also be capable of partially or completely closing the bore of the catheter tube by deforming the tube wall.

Abstract: A reuseable catheterization unit, including a catheter member of a predetermined diameter, a hollow flexible sleeve means connected at one end to the large diameter portion of the catheter and a hollow tubular connector means positioned at the opposite end of the sleeve means and axially spaced from the anterior end of the catheter, said connector mean adapted to sealingly connect with the large tubular end of the catheter to form a closed ring capable of sealingly retaining an antiseptic fluid within the lumen of the sleeve as well as contacting the exterior and lumen of the catheter for aseptic storage between catheterization procedures.

Abstract: There is disclosed a laser instrument which uses an infrared fiber optical waveguide to transmit a high power carbon monoxide or carbon dioxide laser beam for treating a selected part of the body. In one important application of the instrument, the laser beam is transmitted to the interior of the human body to perform surgical functions.

Abstract: An improved portable refrigeration apparatus for cooling a limb of a patient or the like, and which includes at least one flexible pad adapted to be wrapped around a bodily limb and which incorporates flexible tubing serving as an evaporator. A separate auxiliary evaporator is positioned downstream of the pad to insure that all of the refrigerant is evaporated before returning to the compressor. Also, there is provided a temperature control system for the pad which includes a by-pass conduit which by-passes the pad, and a temperature controlled valve for selectively opening and closing the by-pass conduit, and so that the refrigerant will flow concurrently through the by-pass conduit and the pad when the valve is opened.

Abstract: In a demand pacer, an input amplifier senses stimulating pulses and natural heart beat signals, and responsively thereto establishes control of a subsequent stimulating pulse. Charge accumulation on an output capacitor governs recovery time after each generated stimulating pulse. Respective first and second flip-flops, responsive to the input amplifier and the demand pacing logic, establishes a reduced recovery time, after each generated pulse, wherein charge accumulated on the output capacitor is dissipated.

Abstract: A smoking device for aspirating gas-containing mixtures is described which comprises a mouthpiece with at least one suction duct connected to an intermediate chamber, a pressure vessel filled with a mixture disposed next to the intermediate chamber and including an outlet valve that is closed in normal position and ends into the intermediate chamber and has to be opened to put the device into operation, and further comprising an inlet for atmospheric air into the intermediate chamber which is provided with a shut-off valve coupled to the outlet valve, wherein the shut-off valve is open in the normal position and can be brought into closing position when the outlet valve normally urged into closing position is opened, and that the intermediate chamber contains a storage substance for storing the gas-containing mixture.

Abstract: A wig and a method of making a weft for use in making the wig wherein 5 to 50 weight percent of a first modacrylic fiber having a denier of 30 to 50 and a shrinkage of 5 to 20 percent at a temperature of 120.degree. C. is blended with 95 to 50 weight percent of the second modacrylic fiber having a denier of 30 to 50 and a shrinkage of at least five percent less than the shrinkage of the first fiber at a temperature of 120.degree. C. The blended fibers are assembled and sewed to form a weft and the weft is then heated to a temperature of 110.degree. to 130.degree. C. for a time period of 1 to 5 minutes to shrink the fibers. This produces an interaction of high shrinking and low shrinking fibers, thus imparting unique properties of cover, manageability and naturalness to the weft.

Abstract: An inner container for a nuclear fuel transportation flask for irradiated fuel elements comprising a cylindrical shell having a dished end closure with a drainage sump and means for flushing out solid matter by way of the sump prior to removing a cover.

Abstract: Solar radiation is collected and directed through transparent material for the optical conversion of solar radiation to infrared radiation onto a rod-shaped multijunction semi-conductor photovoltaic cell. This is achieved by means of a focusing structure of linear form having a focal line and a plate of transparent converting material. The plate is placed in the vicinity of the focal line and performs the double function of light guide and optical converter. The semiconductor rod is placed along one of the longitudinal edges of the plate.

Abstract: This safety device has a delivery outlet and a pressure-relief valve for venting gas from a source of gas when the gas pressure rises above a predetermined maximum. A delivery line supplies gas from the source to a place of use, and there is a delivery line shut-off valve which shuts off flow to the place of use whenever the relief valve opens by a substantial distance from its seat. This prevents piping and hoses communicating with the delivery line from being subjected to excess pressure in the event that pressure rises faster than the relief valve can vent the excess pressure.

Abstract: A diverter tub spout for use in a bathtub installation including a shower head interconnected to a common source of water. A floating valve member is positioned within the spout water passage and is responsive to water pressure to abut a valve seat to close the passage. A valve control member capable of holding the valve member remote from the seat to permit water flow is held in the flow position by a manually operable stem in a manner that positively allows water flow regardless of the magnitude of water pressure. The stem easily may be positioned to allow the floating valve to close, diverting water from the spout to the shower head, but upon the water pressure dropping below a predetermined level, the tub spout parts will automatically return to their flow positions.

Abstract: The present invention is related to a fluid metering valve that is specifically constructed to provide fine metering at extremely low flow rates while still providing a full shut-off capability. The fluid metering valve of the present invention is specifically adapted to be utilized in conjunction with corrosive fluids or fluids containing suspended solid particles that would otherwise damage or clog a comparable precision needle valve.

Abstract: Unidirectional flow limiter housed in a union between a pipe and a user apparatus, comprising a first channel, a second channel, a flow reduction member between the two channels, a third channel, and a non-return valve in the third channel constituted by a deformable annular member placed concentrically about one of the first or second channels.

Abstract: Catch yarns are drawn between a pair of rotatable members which are mounted to be movable toward and away from another and yieldably urged to come together. Detecting means detects the relative movement between the pair of rotatable members and produce an alarm-signal when the relative movement of one rotatable member away from another reaches a predetermined increased value.The catch yarns in tensioned state are further utilized to hold the detecting means at a rest position thereof. The detecting means also produces an alarm-signal upon the breakage of the catch yarns.

Abstract: An endless forming fabric for paper-making machine comprises at least two layers of transverse threads and one layer of longitudinal threads. The upper loops formed by the longitudinal threads cover from three to seven transverse threads of the upper layer. The leading crossing points of these upper loops with the transverse threads are distributed in a weave pattern using at least five longitudinal threads. The weave pattern on the paper side of the fabric is selected so as to avoid alignment of the upper loops of adjacent threads and diagonal effects. The lower loops formed by the longitudinal threads, on the machine side of the fabric, pass each time only underneath a single transverse thread of the lower layer.

Abstract: In machines for vending liquids into cups, a cup guide and a cup stabilizing flapper are used to place the cup in position to receive the selected liquid. A flapper retractor apparatus is connected to the vending machine sliding door so that when a user opens the door to remove a filled cup, the cup flapper is simultaneously moved aside by the flapper retractor so that the filled cup may be more easily removed.

Abstract: A handbag having a novel umbrella compartment structure located adjacent the floor of the handbag. The umbrella compartment is comprised of a one-piece generally elongated tubular structure closed at one end, and connected at that one end to the handbag, by the same stitch line that connects the bag's one end wall and the bag's floor. The other end of the tubular compartment is attached to an opening in the bag's other end wall. A flap with an appropriate closure is also attached to that other end wall for opening and closing the umbrella compartment structure during use.

Abstract: A locking thread design which may be incorporated in various types of male and female threaded elements, for example, a bolt and nut, or a bolt and casting, forging or similar member having a threaded bore therein. The thread design may be of the Standard, i.e., American or Unified Standard, or buttress type and is free running until a predetermined magnitude of loading is applied thereto, at which time the locking action of the thread occurs so as to prevent relative lateral movement between the nut and bolt and hence positively resist loosening thereof under vibration and similar adverse operating conditions. The locking thread may be embodied on either one or both of the threaded elements, and will operate effectively when the locking thread is operatively associated with threaded members having conventional threads thereon.

Abstract: An awning assembly including an elongated storage case mounted on the side of a recreational vehicle, and having an extended position for providing shade and a retracted position for storage. A lead bar is connected to the outer edge of the awning, and the inner edge is connected to a spring-loaded take-up roller in the case. To brace and support the lead bar when the awning is unrolled and extended, automatically positioned, telescoping rafters extend between the ends of the case and the central portion of the lead bar, and telescoping legs pivoted on the ends of the lead bar are connectible to anchor brackets on the side of the vehicle. These legs are jointed between their ends to facilitate operation on a curved-sided vehicle, and are connected to the lead bar by swivels permitting compact folding into inconspicuous storage positions along the bottom of the case, where they are latched and partially concealed by a leg latch.

Abstract: The tank wall is provided with a cylindrical collar in which a perforated tube base is mounted; the base having a set of tubes passing through in gas-tight relation. A thin sheet metal membrane is secured peripherally on the tube base to form an enclosed gas-tight chamber through which the tubes pass. The membrane is also perforated to permit passage of the tubes in a gas-tight relationship. The enclosed chamber permits monitoring of the imperviousness of the connections between the tubes and the tube base.

Abstract: A heat exchanger tube has a first asymmetrically corrugated sheet portion having an opposite pair of longitudinally extending side edge portions, a plurality of substantially transversely extending ribs and a substantially uninterrupted inner surface, a second asymmetrically corrugated sheet portion having an opposite pair of longitudinally extending side edge portions, a plurality of substantially transversely extending ribs and a substantially uninterrupted inner surface, and at least one joint for connecting side edge portions of the first and second corrugated sheet portions forming a tube and providing an internal flow path for a first fluid and a plurality of external flow paths for a second fluid.

Abstract: Water, with gas entrained therein, collecting in the bottom of the casing of a gas producing well is continuously removed using an ejector in the inner of a pair of coaxial tubes mounted in the casing by continuously pumping drive water downwardly between the two tubes, radially inwardly through apertures in a nozzle body and upwardly through a nozzle at the top of the nozzle body into a suction chamber to draw water from an inlet duct at the bottom end of the inner tube through longitudinally extending passages in the nozzle body; the resulting mixture of drive water, well water and gas being discharged through a multi-stage diffuser and the inner tube to a separator, where the gas and water are separated. The separated gas can be used to operate a gas engine for driving the pump, which feeds drive water to the ejector, and the well water can be re-used as drive water.

Abstract: In accordance with the method of the present invention, methane and other similar fuel components are separated from the brine found in geopressurized geothermal zones by immersing gas permeable membranes selective for these fuel components into the brine in these zones, and permitting these fuel components to permeate through the membranes while rejecting the brine. The permeated fuel components then are collected.

Abstract: A tubing hanger assembly adapted to carry a tubing string suspended therefrom and to be connected to a landing tool for lowering of the tubing hanger assembly and tubing string into a well casing means, and landing said tubing hanger assembly on said casing means and simultaneously locking said assembly to said casing means without relative rotation of said landing tool and tubing hanger assembly. A tubing hanger assembly adapted to be releasably connected to a landing tool under conditions where the weight of the landing string is imposed upon the tubing hanger assembly whereby the connection between the landing tool and the tubing hanger assembly is releasable by relative rotation of the landing tool with respect to the tubing hanger assembly in one direction only.

Abstract: A re-entry cementing float shoe for use with sonar/TV underwater guide systems is a short inner and outer cylindrical housing members in concentric spaced relationship forming an annular space therebetween with a cementing core filling said annular space, said inner housing has its top below the top of the outer housing, the upper inner surface of the cement forming a taperal lining cone, the bottom of the cone ending at the top of the inner housing and the top of the cement cone ending at the inner surface of the outer housing below an inner top portion of the outer housing, said portion having an attachment means for accepting and attaching to a casing pipe.

Abstract: A charcoal extinguisher that is portable and adapted to receive a quantity of glowing charcoals therein and to extinguish the flame thereof such that the same may be re-used, the device includes a triangular shaped member having a grating thereon for holding the coals until they extinguish.

Abstract: A cultivating implement has a supporting frame and elongated tined beams, extending transverse to the direction of travel, located below the frame. Each tined beam is connected to respective eccentric mechanisms mounted on two rotatable shafts that extend in the direction of travel and the shafts are supported on frame beams. One of the shafts is connected to a driving shaft via a gear box that houses a step-up gear transmission and drives the other shaft via the beams. The tined beams are moved through circular paths out of phase with respect to one another and can mount tines that crumble soil or strip-shaped tines that cut vegetation. A supporting roller is adjustably mounted on the frame to trail the tines and further work the soil.

Abstract: A foldable implement construction includes an implement tool carrying center frame pivotally connected to a draft frame and is provided with a pair of transversely extending outrigger tool sections connected on respective opposite sides of the center frame by a single ball and socket-like hinge which provides a single hinge for both horizontal swinging of the outrigger sections from their transversely extending working position to a longitudinally extending transport position, and further provides for radial pivotal movement of the outrigger sections in their working position to allow the latter to cant and rise and fall in accordance with uneven terrain.