Patents Represented by Attorney Edwin E. Greigg

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  • Capacitive proximity sensors
    Patent number: 4122708
    Abstract: A capacitive proximity sensor for use in hostile environments comprises a ceramic substrate, and two conductive regions formed on the substrate and having opposed edges defining a narrow gap therebetween. The gap configuration is such as to maximize the fringing of electric flux lines outwards from the substrate when one conductive region is energized from a high frequency source. The other conductive region is connected to remotely located signal conditioner operative to maintain said other region at virtual ground and thereby eliminate signal error due to cabling capacitances. On approach of a flux-shielding body to the sensor, the sensor output current to the signal conditioner will decrease as a function of the proximity of the body. The sensor can be used as a simple proximity sensor or incorporated in a shaft torque measurement system operative down to zero r.p.m.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: October 31, 1978
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Lawrence C. Maier
  • Internal combustion engine
    Patent number: 4121544
    Abstract: A spark plug ignited internal combustion engine in which each cylinder is provided with a turbulence chamber in which the exhaust valve is located. The cylinder head and the top of the piston cooperate during the compression stroke to define a guide channel through which combustible gases are introduced in off center manner to the turbulence chamber where a substantially single vortex flow is created. The spark plug is preferably located so that the sparking electrodes are in the turbulence chamber or nearby in the guide channel and are in close proximity to the top of the piston at TDC. In one embodiment, the inlet valve is located in a depression of the cylinder head so configured that, during the initial valve opening, the inflowing gases are constrained to flow toward the center of the combustion chamber, thereby preventing contact with the cylinder walls.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: October 24, 1978
    Inventor: Michael G. May
  • Knock-down picture frame assembly
    Patent number: 4121362
    Abstract: What follows is the description of a knock-down picture frame assembly having the usual number of frame members that are provided with mitered surfaces each of which include aligned apertures that extend out through the perimetral walls of the frame members and into which is positioned a locking element.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: October 24, 1978
    Inventor: Eugene W. Knuth
  • Air-fuel ratio feedback control system
    Patent number: 4121554
    Abstract: The combination of a fuel supply system for an internal combustion engine, an exhaust gas oxygen concentration sensor and a feedback control system including an integration circuit connected to the fuel supply system and a correction control circuit connected to the exhaust gas oxygen concentration sensor and the integration circuit. The combination controls the air-fuel mixture to be supplied to an engine in accordance with an integration output signal, which in turn is generated from the output signal generated by the exhaust gas oxygen concentration sensor. The correction control circuit serves to disconnect the exhaust gas oxygen concentration sensor from the integration circuit when a predetermined operating condition of the engine is reached, thereby holding the output from the integration circuit constant.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: October 24, 1978
    Assignee: Nippondenso Co., Ltd.
    Inventors: Motoharu Sueishi, Katsushi Kato, Yoshiaki Sato
  • Plastic pipe or hose connection for fuel conduits
    Patent number: 4114929
    Abstract: The invention refers to a plastic pipe or hose connection arrangement for fuel conduits for use in motor vehicles, and in particular for fuel conduits in a fuel injection installation with a hose spout carried by a connecting piece, on to the nipple of which the pipe or hose end is pushed.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: September 19, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Heinrich Knapp
  • Open-end spinning apparatus
    Patent number: 4114356
    Abstract: An open end spinning machine is provided with individual thread guides for each station. The thread guides direct compressed air along an axial channel in which the thread travels. The air expels the thread in the direction reverse to normal thread travel whenever it is desired to return a broken thread to the spinning chamber and rotor. The apparatus includes a thread cutting mechanism, disposed between the pneumatic thread guide and the spinning chamber, for cutting the thread to a fixed length so that it may be reattached to the fibers in the rotor without discontinuities.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: September 19, 1978
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Friedrich Eckhardt
  • Arrangement for detecting light sources
    Patent number: 4115006
    Abstract: An arrangement which enables the presence in an observed field of a light source whose radiation spectrum is known to be detected with a high signal to noise ratio. It includes an acousto-optical tunable filter controlled to scan through the expected spectrum of the source periodically and preferably linearly. The photo-detected signals are processed by a high-pass filter which removes the D.C. component due to ambient interference radiation and provides a periodic signal which correspond to the observed light source. The arrangement applies, in particular, to the angular location of luminous targets.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: September 19, 1978
    Assignee: Thomson-CSF
    Inventors: Jean-Claude Reymond, Alain Bellissant
  • Expandable house trailer structure
    Patent number: 4114942
    Abstract: A shell structure is pivoted outwardly of a house trailer to enlarge the floor area. The shell structure can include three sides positioned over a cabin or portion of a cabin, and the shell structure is pivotal about a horizontal axis near the level of the floor of the cabin which is mounted on the trailer frame. When pivoted outwardly, a folding slidable or extensible roof can be positioned on the upper edges of the shell structure.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: September 19, 1978
    Inventor: Karl Walter Greiner
  • Fuel-air-mixtures controller for internal combustion engines
    Patent number: 4114579
    Abstract: An air flow rate sensor, located in the indication tube of an internal combustion engine, displaces a fuel metering slide, thereby changing the fuel flow and the fuel pressure gradient. This pressure gradient is applied to a differential pressure valve which actuates a fuel flow control throttle until the pressure gradient has been restored to a nominal value, corresponding to a desired fuel-air ratio.In a variant embodiment, an arbitrary change in the metered out fuel results in a fuel pressure gradient which is used to reset an air-flow control member until the nominal value of the pressure gradient has been restored, corresponding to a desired fuel-air ratio.
    Type: Grant
    Filed: November 30, 1976
    Date of Patent: September 19, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Stumpp
  • Container integrated work stand
    Patent number: 4114754
    Abstract: What follows is a description of a container and integrated work stand combination. Included are a body portion forming an enclosure which supports a component to be shipped and a lid portion which complements the body portion during shipping and also serves as part of a work stand for the component to be replaced at a replacement location. Within the body portion there is supplied supporting structure to which the component is mounted and secured, and to the lid portion there is included also supporting structure to which the component to be replaced is mounted. Both the lid portion and its supporting structure form the work stand.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: September 19, 1978
    Assignee: The Boeing Company
    Inventor: Carl Lee Aley
  • Process for the regulation of the optimum operational behavior of an internal combustion engine
    Patent number: 4112879
    Abstract: A process for controlling the operation of an internal combustion engine based on the volumetric efficiency of the engine to define a primary nominal fuel quantity. The process also includes measuring the fluctuations in the volumetric efficiency. In order to operate the engine in a preferred leaned-out condition, a nominal set-point value of the permitted range of fluctuations of the volumetric efficiency is established and the actual measured fluctuations are maintained in that range by changing the fuel metered out to the engine.Various methods for measuring the volumetric efficiency indirectly by pressure measurements in the induction tube are presented.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: September 12, 1978
    Assignee: Robert Bosch GmbH
    Inventors: Jurgen Assenheimer, Valerio Bianchi, Johannes Brettschneider, Reinhard Latsch, Dieter Scherenberg
  • Fuel injection system
    Patent number: 4112900
    Abstract: A fuel injection system for externally ignited internal combustion engines in which a fuel metering and distributing valve is controlled by an air sensing element disposed in the air suction tube of the engine and by structure which is adapted to alter the restoring force exerted on the air sensing element through the fuel metering and distributing valve. The noted structure includes a control pressure conduit, a pressure control valve connected to the control pressure conduit, a second conduit for connecting the pressure control valve to the suction tube of the engine downstream of the butterfly valve, and a third conduit for connecting the pressure control valve to the atmosphere or to the air suction tube downstream from an air filter.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: September 12, 1978
    Assignee: Robert Bosch GmbH
    Inventors: Reinhard Schwartz, Heinrich Knapp, Klaus Riel, Klaus-Jurgen Peters
  • Air flow meter
    Patent number: 4111045
    Abstract: A flow meter for metering the air quantity aspirated by an internal combustion engine including a metering valve element constructed as a box-like cylindrical segment pivotably mounted in a flow tube of the engine. The valve element has a radial transverse wall oriented transversely relative to the direction of the air stream in the flow tube, side walls oriented parallel relative to the direction of the air stream and a curved cylinder wall connected to the radial transverse wall and the side walls. The transverse, side and curved cylinder walls define a recess which opens in a direction opposing the direction of the air stream. The flow meter thus constructed possesses the advantage of producing a nearly linear characteristic curve.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: September 5, 1978
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Sauer, Dieter Vogt
  • Hydraulic brake booster
    Patent number: 4111496
    Abstract: A master cylinder for a two-circuit brake system which includes an anti-skid control has two separate chambers and pistons. The main control piston is associated with an auxiliary piston which it engages after a predetermined amount of travel. The brake pedal is arranged to actuate inlet and outlet valves and a selector piston provided with an array of longitudinally disposed rods is arranged to actuate the inlet valve. The control piston communicates with a 2/3-way valve and therethrough flow to said control piston can be interrupted upon pressure failure.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: September 5, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Leiber
  • Radiant energy detection system for the angular location of a light-radiating object
    Patent number: 4112294
    Abstract: A radiant energy detection system which allows angular location in bearing and elevation by using a simple detector element and a static mask preferably formed by a PLZT strip between two intersecting polarizers. A control circuit operates the mask to provide a configuration having a transparent zone equal to n measurement quadrants (n being a whole number equal to 1, 2 or 3) and an opaque zone equal to the remaining 4-n quadrants, and to bring about four successive operating states which are distinguished one from the next by an angular displacement of .pi./2 radians around the optical axis. The control circuit operates further a switching circuit synchronously with the mask to connect the output of the detector successively to four reception channels each of which includes a high speed memory. A measuring circuit calculates the angular location from the four detected signal values stored in the memory.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: September 5, 1978
    Assignee: Thomson-CSF
    Inventor: Robert Pressiat
  • Multiple element for forming various structures when connected to box-form panels for furniture or the like
    Patent number: 4110052
    Abstract: A device for facilitating assembly of shelves, bookcases, dividers, and other similar structures, including an elongated tubular body having integrated therewith multiple offstanding jointing means to which suitable panels can be attached for producing a completed structure.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: August 29, 1978
    Assignees: Beylerian Limited, Kartell, S.p.A.
    Inventor: Giulio Polvara
  • Equipment for exhaust gas detoxification in internal combustion engines
    Patent number: 4107922
    Abstract: What follows is a description of an improvement in equipment for the exhaust gas detoxification of internal combustion engines. An insulated heat pipe is provided which transfers heat from the engine's exhaust manifold to an exhaust gas reactor. The heat pipe contains a first zone serving as an evaporation zone, a second zone serving as a transport zone for transporting a working medium between the first zone and a third zone. The third zone serves as a condensation zone. The heat pipe has an interior capillary tube along which the condensed heat transfer medium flows toward the heat source and within which the vaporized medium flows toward the heat sink.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: August 22, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Gunter Wossner
  • Double twisting machine
    Patent number: 4107910
    Abstract: A double twisting machine is equipped with air flow control devices which create preferred conditions in the vicinity of each twisting station and, particularly, in the immediate vicinity of the twisting mechanism and the thread balloons. Pre-conditioned air, adjusted for temperature and humidity, is delivered through a nozzle located above each twisting spindle and is directed generally to the location of the thread guide loop. The protective container for the bobbin has a lower opening which permits the air flowing into the container from the top to emerge below where an exhaust conduit carries it away. A coaxial shroud surrounds the protective container and forms an annular air passage through which conditioned air may flow in both directions.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: August 22, 1978
    Assignee: LTG Lufttechnische GmbH
    Inventors: Joachim Furstenberg, Dietmar Hencke
  • Fuel metering system
    Patent number: 4108117
    Abstract: A fuel metering system for an internal combustion engine has an arbitrarily settable throttle plate which controls the air flow through the induction tube and an air flow responsive valve element, shaped somewhat like a cylindrical sector, which is pivoted inside the induction tube upstream of the throttle plate. The pivoting valve element has a shaft which is surrounded by a bushing. An opening in the bushing is uncovered to varying extent by a control edge on the pivotal shaft so as to meter out fuel in proportion to the angular excursion of the pivoting valve element. The fuel is delivered to the induction tube directly downstream of the pivoting valve element.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: August 22, 1978
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Stumpp, Wolf Wessel, Volkhard Stein, Wolfgang Ripper
  • Fuel supply system for internal combustion engines
    Patent number: 4108128
    Abstract: A fuel supply and mixture generating system for an internal combustion engine includes an air flow rate meter and, downstream thereof in the induction tube, a pivoting throttle plate actuated from the outside. Pivoting on the same shaft as the throttle plate is a mixture generating plate having a damping wing which moves in the same direction as the throttle plate in an appropriately configured wall region of the induction tube and a mixture generator wing with internal fuel channels and one or more fuel injection orifices at the edge where it defines the air flow cross section. The mixture generating plate is displaced by the air stream and this displacement is opposed by a spring. At full throttle, the force of the spring is changed by interaction of the throttle plate with the point of attachment of the spring.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: August 22, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Heinrich Knapp