Patents Issued in February 14, 1984
  • Patent number: 4430856
    Abstract: An improved port liner and its method of assembly into a cylinder head of an engine such that an air insulating layer is formed between the outer periphery of the liner and the inner diameter of an exhaust passage. The liner is a thin, stainless steel member having an arcuately-shaped section and a straight section which permits it to be inserted only one way into an exhaust passage. This is important for it allows for automated machine assembly of a valve guide which must be pressed through an opening located in the outer surface of the liner. The method of assembly also limits the physical contact between the liner and the cylinder head and this in conjunction with the air layer reduces the loss of thermal energy from the passing exhaust gases.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: February 14, 1984
    Assignee: Deere & Company
    Inventor: David W. Niedert
  • Patent number: 4430857
    Abstract: An exhaust gas cleaning system for an internal combustion engine including two cylinders arranged in V-shape and an exhaust system having exhaust ports. A secondary air supplying system is connected to the exhaust system for supply of secondary air. Reed valve devices responsive to an exhaust gas pulsation pressure are incorporated in the secondary air supplying system and are opened and closed under the action of exhaust gas pulsation developing during engine operation. The reed valve devices are disposed in a space defined between the two cylinders. The reed valve devices are connected to the exhaust ports through respective secondary air supplying pipes which form a part of the secondary air supplying system. The secondary air supplying pipes are wound so as to surround the respective cylinders.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: February 14, 1984
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuo Ikenoya, Youzi Simizu
  • Patent number: 4430858
    Abstract: An electrical generating system including a tubular chamber for confining an upstanding column of liquid, and a combustion chamber disposed within the tubular chamber wherein products of combustion are directed into the upstanding column of liquid for heating same and dispersing bubbles of the products of combustion therein to reduce the density of the liquid and cause same to rise in the tubular chamber for recirculation from the upper end of the tubular chamber through the lower end thereof for driving a turbine disposed within the stream of recirculating liquid.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: February 14, 1984
    Inventor: Clarence W. Shaw
  • Patent number: 4430859
    Abstract: A hydraulic circuit and charging valve arrangement is disclosed for charging an accumulator where the accumulator is used to power an additional function such as a brake valve. The accumulator charging circuit is connected to a load sensing power steering circuit including a flow divider that controls the flow of a fixed displacement pump to selectively effect actuation of a power steering motor and an auxiliary device such as a bucket loader or backhoe control valve. The charging circuit includes a pilot operated charging valve which controls the flow divider of the load sensing steering circuit for the purpose of recharging the accumulator. The charging valve includes a valve member that is biased against a coil spring to a neutral position when the accumulator is charged. When the accumulator pressure drops below a preset level, the valve member is shifted thereby permitting fluid flow through the charging valve to the flow divider in the load sensing steering circuit.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: February 14, 1984
    Assignee: J. I. Case Company
    Inventor: Arthur E. Hirsch
  • Patent number: 4430860
    Abstract: In a supercharged engine, a bypass connected to the compressor delivery pipe (4) supplies the turbine with all the air which has not been absorbed by the engine. The bypass (4) is divided into a first branch which supplies combustive air to the primary region (10) of an auxiliary combustion chamber and a second branch which supplies diluting air to the secondary region of the aforementioned chamber and comprises first throttle means. The first branch has second throttle means (13) comprising coupled orifices (14, 15) formed respectively on an inner sleeve (16) and an outer sleeve (17) movable relative to one another. According to the invention, a radial clearance (a) is maintained between the sleeves (16, 17) irrespective of their respective temperatures. Third throttle means (45), having a zero minimum flow section, are provided upstream or level with the second means (13).
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: February 14, 1984
    Assignee: The French State
    Inventors: Jean F. Melchior, Thierry Andre
  • Patent number: 4430861
    Abstract: The present invention provides an open cycle ocean thermal energy conversion plant for deriving power from the thermal differential between the surface waters and cold waters at a depth in tropical oceans. Warm surface water is sprayed into a lower chamber which is at pressure approximately equal to the vapor pressure of the warm water where part of the water evaporates. The vapor then passes through a venturi or venturis dividing the lower chamber from the upper chamber which is maintained at pressure approximately equal to the vapor pressure of the cold water. The pressure difference across the venturi(s) causes the vapor to emerge into the upper chamber at supersonic speed. Cold water injected into the supersonic jets gains momentum and energy from the jets which causes it to be forced upward to the top of the chamber where it is collected. In the process the vapor is cooled and condensed by cold water.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: February 14, 1984
    Assignee: The Johns Hopkins University
    Inventor: William H. Avery
  • Patent number: 4430862
    Abstract: An internal combustion engine for vehicles comprising a primary and an auxiliary engine unit each comprising vertically disposed cylinders and a crankshaft operatively connected to the respective cylinders. The crankshafts are arranged in parallel. A first output shaft is positioned parallel to both crankshafts and at an intermediate position between extensions of the crankshafts. The auxiliary engine unit is spaced apart from an end of the output shaft defining a space. The cylinders of each engine unit are arranged in staggered disposition. A clutch is disposed in the space between the auxiliary engine unit and the output shaft for transmitting an output of the auxiliary engine unit to the output shaft. A gear train comprises three gears including a first end gear secured to the crankshaft of the primary engine unit, a second end gear secured to an output shaft of the clutch, and an intermediate gear secured to the first output shaft engaging with both end gears.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: February 14, 1984
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Toru Yamakawa
  • Patent number: 4430863
    Abstract: A method and apparatus for increasing the refrigeration capacity of a displacer-expander type cryogenic refrigerator pneumatically actuated by a rotary valve by increasing the number of ports of the rotary valve to increase reciprocating speed of the displacer without increasing speed of rotation of the valve.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: February 14, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Ralph C. Longsworth
  • Patent number: 4430864
    Abstract: An air conditioning system utilizes a novel air thermodynamic cycle and performing apparatus for simultaneous and efficient removal of the sensible and latent heats from the room return air. The system employs a pair of heat exchangers having a desiccant material thereon, the refrigerant, room and outside ambient air flows being selectively routed to the heat exchangers to allow one heat exchanger to operate as an evaporator to effect cooling and drying of the room return air while the other heat exchanger acts as a condenser of the refrigerant and regenerates the desiccant material thereon. The heat exchangers are switchable between evaporator and condenser modes allowing for continuous conditioning of the room return air.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: February 14, 1984
    Assignee: Midwest Research Institute
    Inventor: Balakrishnan Mathiprakasam
  • Patent number: 4430865
    Abstract: In a method for cooling a process gas stream with a liquid cryogen, said stream being recycled through a pipe in a closed system comprising a reactor containing at least one pipe wherein, at the initiation of the instant method:(i) the flowrate of the stream is in the range of about 10,000 scfm to about 350,000 scfm;(ii) the temperature of the stream is in the range of about 75 degrees F. to about 450 degrees F.; and(iii) the pressure of the system is in the range of about 150 psig to about 1000 psig;and wherein, at any time during the effectuation of the instant method:(iv) the temperature differential between any two points in the pipe separated by at least about eight times the nominal pipe diameter is no greater than about 200 degrees F.; and(v) the minimum temperature of the pipe is at least about minus 20 degrees F.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: February 14, 1984
    Assignee: Union Carbide Corporation
    Inventor: Robert B. Davis
  • Patent number: 4430866
    Abstract: A refrigerating system of the type used in supermarkets for refrigerating foods merchandised in refrigerated display cases, utilizes a control valve sensitive to pressures in a surge receiver and the liquid line. The valve opens whenever the receiver pressure drops below that of the liquid line more than a predetermined amount, to force hot gas from the compressor discharge line into the receiver. An elevation of the receiver pressure results, until the predetermined pressure differential between the liquid line and the receiver is re-established.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: February 14, 1984
    Assignee: Emhart Industries, Inc.
    Inventor: Benjamin R. Willitts
  • Patent number: 4430867
    Abstract: An air cycle refrigeration system (10) for cooling and ventilating an enclosure such as an aircraft cabin (15) includes a circulation heat exchanger (145) for absorbing heat from air within the cabin, a sink heat exchanger (120) for delivering the heat absorbed from the cabin air to exhaust air from the system's turbine (80) and for melting ice in the exhaust air. A heat exchange liquid circulates through both heat exchangers in a single loop (100). The circulation heat exchanger (145) may be located in the interior of the cabin (15).
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: February 14, 1984
    Assignee: United Technologies Corporation
    Inventor: John L. Warner
  • Patent number: 4430868
    Abstract: Disclosed is an evaporator comprising a connector member, a Venturi distributor connected to the connector member for receiving and distributing a coolant, wherein the Venturi distributor divides the coolant into a plurality of streams, a plurality of channels formed in the connector member for conducting the coolant streams from the Venturi distributor, the channels corresponding in number to the streams with each channel being positioned to receive one of the streams from the Venturi distributor, a plurality of evaporator pipes connected to the connector member in parallel flow arrangement, the pipes corresponding in number to the channels with each pipe being connected to one of the channels, thereby forming a continuous coolant flow path from the Venturi distributor via the channels to the evaporator pipes, and a collection chamber formed in the connector member for receiving the coolant from the pipes.
    Type: Grant
    Filed: July 2, 1982
    Date of Patent: February 14, 1984
    Assignee: Sueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG
    Inventors: Josef Kern, Helmut Bardong, Bohumil Humpolik
  • Patent number: 4430869
    Abstract: A jewelry ornament construction comprising an elongated pin and a plurality of ornament elements which have aligned apertures therethrough, and are slidingly received on the pin and retained thereon in generally aligned planar relation to form a composite ornament. Since the ornament elements are removably retained on the pin, the ornament is adapted for personalization with various desired combinations of elements, which may embody monogramatic and emblematic insignia.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: February 14, 1984
    Assignee: B.B. Greenberg Company
    Inventor: Domenic A. Zinni
  • Patent number: 4430870
    Abstract: In a control arrangement for the motor of a winding arrangement, such as a partial warp beam in a warp knitting machine, there is provided a controller. The controller controls the rate of rotation of the motors of the turning arrangements that influence thread consumption and ware takeoff, in dependence on a main shaft signal, a feedback signal and an input size signal. The control arrangement is equipped for the storage of a program containing many input sizes which are addressable sequentially for the control arrangement, in dependence upon the main shaft signal. In particular, a data memory may be provided with a plurality of addresses for the production of differentiable input sizes. An address caller is controlled by the main shaft signal and calls out sequentially the different input sizes for the control arrangement. As a controller, a digital computer is foreseen.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: February 14, 1984
    Assignee: Karl Mayer Textilmaschinfabrik GmbH
    Inventors: Karl Winter, Friedrich Gille, Hans Lotz
  • Patent number: 4430871
    Abstract: A means for operating a washing machine transmission in a neutral state is provided which includes a reversible drive gear for driving the transmission in a first agitate direction and an opposite spin direction. A drive pawl is pivotally mounted on the drive gear. Pawl pivoting means, being a circular control spring with an outwardly extending tang is selectively rotatable against either side of the pivoted pawl and a latching pawl selectively captures the tang when the drive gear is rotating in the spin direction to operate the transmission in a neutral state until the rotation of the spin gear is interrupted. Means are provided on the latch pawl to prevent relatching of the control spring if the rotation of the drive gear is subsequently interrupted.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: February 14, 1984
    Assignee: Whirlpool Corporation
    Inventors: Robert A. Brenner, Thomas H. Buckleitner
  • Patent number: 4430872
    Abstract: Method and apparatus for preparing an edge of a steel plate in a UOE process of making steel pipes, wherein a steel plate edge is positioned between a male die and a female die which have a curvature as desired in the edge, and held substantially horizontally by holding means outside the die, and the female die is moved against the edge and the male die by action of a lever which is pivoted about a fulcrum point which is inward of the plate edge and which has a moving means at the other end of the lever opposite the fulcrum point a predetermined distance from the female die. Advantageously, such method and apparatus enable formation of steel pipes using the UOE method having thicknesses previously difficult to produce without peaking of the produced seams.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: February 14, 1984
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Yutaka Mihara, Tomoshige Sudo
  • Patent number: 4430873
    Abstract: The apparatus comprises a support for supporting a blank in which at least one groove having a curved axis and a circular section is to be formed, a ball for forming the groove and carried at one end of a ball holder, a device for displacing the ball holder, and an articulated quadrilateral structure which has a first side rigid with the support and a second side in which the ball holder is fixed by an end of the ball holder. The second side is opposed to the first side of the quadrilateral structure. Thus the ball holder is movable relative to the support by the ball holder displacing device. An application of the apparatus is in the forming of runways in transmission joints of the tripod type.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: February 14, 1984
    Assignee: Glaenzer Spicer
    Inventor: Michel A. Orain
  • Patent number: 4430874
    Abstract: A processing line for rolling metal slabs into strip thicknesses along a substantially horizontal pass line includes the utilization of an intermediate mill formed of an upstream coiler furnace and a pair of coiler furnaces downstream of a reversing mill where the downstream coiler furnaces are in vertical alignment with one above the pass line and the other below the pass line. The method of rolling includes reducing a transfer bar in the reversing mill and coiling it in one of the downstream coiler furnaces. The coil is then passed back through the reversing mill into the upstream coiler furnace. Thereafter, the coil passes through the reversing mill for the third time and is again coiled in one of the downstream coiler furnaces. The coil is then uncoiled and directed into the finishing train while a subsequent coil is processed in the reversing mill utilizing the empty downstream coiler furnace. The rolling of the workpiece through the intermediate mill is done independent of the finishing train.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: February 14, 1984
    Assignee: Tippins Machinery Company, Inc.
    Inventors: George W. Tippins, Vladimir B. Ginzburg, Wayne G. Pottmeyer
  • Patent number: 4430875
    Abstract: In a method of rolling tubes in a stretch-reducing rolling mill having a group drive in which the elongation, and therefore the tension is increased by increasing the speed of an auxiliary drive motor relative to that of a main drive motor, the length of the trailing "thickened end", which must be rejected as scrap, is reduced by increasing the elongation from the point in time at which the start of the trailing end portion of the tube reaches the last stand. This trailing end portion is that portion which receives a larger wall thickness than the central portion of the tube as a result of the reduced tension exerted in the trailing end portion of prior art practices. The start of this trailing end portion can be predicted from experience or by rolling a sample tube without subjecting its trailing end portion to the said increased elongation and measuring the wall thickness at the trailing end portion of the sample tube.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: February 14, 1984
    Assignee: Kocks Technik GmbH & Co.
    Inventors: Werner Demny, Hermann Moltner, Hans-Dieter Gerhards
  • Patent number: 4430876
    Abstract: The hot strip mill for rolling slabs of a minimum thickness on the order of 7.75 inches into strip on the order of 1000 PIW comprises a plurality of mill stands TM1 through TMx, each of the stands spaced from an adjacent stand by a distance less than the length of the strip between the stands so as to roll in tandem at a constant mass flow. The method of rolling includes reducing slabs into the strip thickness through continuous passes on the TM1 through TMx mill stands while maintaining a constant mass flow on each stand and a minimum temperature differential from head to tail. The method includes selecting the correct slab thickness to achieve the desired productivity and temperature differential.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: February 14, 1984
    Assignee: Tippins Machinery Company, Inc.
    Inventor: Vladimir B. Ginzburg
  • Patent number: 4430877
    Abstract: A method for cleaning inner surfaces of a container on an indirect extrusion press, using a loose die including an extruding die portion and a separable cleaning die portion. The die is continuously used after contributing to the cleaning in each cycle of press operation, replacing the cleaning die portion alone in an ejected position after extrusion of a billet.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: February 14, 1984
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Akira Aasari, Tatsuhiko Noyori, Yukuo Mizoguchi, Tetsuro Takehata
  • Patent number: 4430878
    Abstract: This invention relates to a cold forming process wherein a consistent stitch tongue profile is swaged into a planar throat plate blank. Thereafter, excess material resulting from the cold forming process is removed and the required needle holes and thread slots are provided in the blank.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: February 14, 1984
    Assignee: Union Special Corporation
    Inventors: David Dispennett, Robert Zorn
  • Patent number: 4430879
    Abstract: A controller for a press brake, which provides for the accurate sequential bending of sheet metal by a press brake. The controller includes a microprocessor arrangement for operating a press brake in response to manually entered input to control a gauge stop and to produce output control signals relating to the relative positioning of the ram and die which positioning causes an angle of bend in a workpiece. Included is a sensing device for sensing the actual angle of bend in the workpiece and means for comparing the actual angle of bend to a desired angle. By such a comparison, the manual inputting of complex variables which are required to predetermine the precise relative positioning of the ram and die are made unnecessary. Further, feedback relating to the springback of the workpiece material causes sequential re-cycling of the press brake thereby improving the accuracy of the resulting angles produced.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: February 14, 1984
    Assignee: Hurco Manufacturing Company, Inc.
    Inventor: Burton A. Rolland
  • Patent number: 4430880
    Abstract: An apparatus for straightening suspension bars removed from cathode plates includes a horizontal press, a vertical press, a vertically movable stop plate, and an ejector in the horizontal press. The horizontal press pushes the suspension bar against the stop plate when the stop plate is in its upper position, and ejects the straightened suspension bar laterally when the stop late is in its lower position.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: February 14, 1984
    Assignee: Outokumpu Oy
    Inventors: Jarkko Nurmi, Leo Uusitalo
  • Patent number: 4430881
    Abstract: A swaging machine comprises at least four radial rams, which are angularly apart and axially guided in the machine frame and held against rotation. Each ram is associated with a power screw, to which an oscillating angular motion can be imparted preferably by a rocker lever and an eccentric shaft. Screw-threaded drive trains actuate said power screws so as to impart the reciprocating swaging motion to the rams and to adjust their position. To provide a structure which is as simple, compact and inexpensive as possible, each power screw has two screw-threaded portions. One screw-threaded portion is operatively connected to a swaging drive train and in threaded engagement with mating screw threads of the associated ram. The other screw-threaded portion is in screw-threaded engagement with a rotatable adjusting nut of an adjusting drive train.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: February 14, 1984
    Assignee: GFM Gesellschaft fur Fertigungstechnik und Maschinenbau Gesellschaft m.b.H.
    Inventor: Bruno Kralowetz
  • Patent number: 4430882
    Abstract: A blank (17), which has been sheared off from a coil of wire or from a rod, is rotated through 90.degree., this rotation being required in connection with the forging of this blank. The gripping-jaws (19, 20), serving for the purpose of transport from one station to the adjacent metal-working station, are attached, for this purpose, to rotating devices (9c, 9d), which are mounted in a manner permitting rotation and are located, on the one hand, on a guide part (7a, 7b) which is driven to reciprocate (A) and to oscillate about an axis (93), and, on the other hand, are anchored to the stationary die-holder (3) via a guiding mechanism (23a, 23b). The guiding mechanism can be regarded as a spatial double-link mechanism, possessing a connecting rod (24), a coupling link (25), a stationary pin-joint (28), a ball-joint (30), and a pin-joint (29a, 29b) which travels with the rotation device (9c, 9d). The components are arranged in such a way that the greatest part of the intended 90.degree.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: February 14, 1984
    Assignee: Hatebur Umformmaschinen AG
    Inventor: Ulrich Steinhauser
  • Patent number: 4430883
    Abstract: A device for the calibration of an ultrasonic transducer includes a container (4) in which are immersed a calibration transducer (1), a rigid flat body (2) which contacts the front of the transducer (1) by way of a bevelled edge so that the distribution of the ultrasonic velocities is not disturbed in any way, a rigid hemisphere (3) which projects from a first principal surface (8) of the body, and the transducer (5) to be calibrated. The transducer (5) is displaceable so that a beam of ultrasonic energy to be emitted or received by this transducer can pass through any point situated within or near the hemisphere (3).
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: February 14, 1984
    Assignee: U.S. Philips Corporation
    Inventor: Michel J. Auphan
  • Patent number: 4430884
    Abstract: A method testing a marine hydraulic release of the type used to secure life rafts and the like to ships comprising placing the hydraulic release on a tension stand and applying tension to it to approximate service conditions, characterized in that the method further comprises placing a load cell in direct line with the hydraulic release on the tension stand, the load cell being connected to a tension indicating device, and gradually increasing the tension on the hydraulic release unit by a desired level as determined by the load cell output on the indicating device, thereafter release testing the tensioned hydraulic release unit under superatmospheric air pressure and tension approximating actual service conditions while the hydraulic release and load cell remain undisturbed and under tension.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: February 14, 1984
    Assignee: Landrigan Corporation
    Inventor: George E. Landrigan
  • Patent number: 4430885
    Abstract: A closed vessel apparatus for rapidly determining the burning rate of uncd propellant. Apparatus includes a closed vessel enclosing a propellant in a holder. An ignition wire is mounted in the vessel for igniting the propellant. A pressure transducer is provided for detecting the pressure rise in the vessel and an electronic circuit triggers the start and stop of pressure integration. This data is fed to a data print out circuit.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: February 14, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Chester W. Huskins, Leroy J. Williams
  • Patent number: 4430886
    Abstract: A method and apparatus for sensing and signaling a clogged nozzle condition in a spray gun of the type which includes a valve located adjacent the nozzle. The gun includes a restrictor located in the liquid flow path upstream of the valve and a pressure transducer located between the restrictor and the valve for measuring pressure drop when the valve of the gun is opened. A pressure drop of less than a predetermined amount is indicative of a clogged nozzle condition.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: February 14, 1984
    Assignee: Nordson Corporation
    Inventor: Alvin A. Rood
  • Patent number: 4430887
    Abstract: Apparatus is disclosed for hydrostatically testing a length of pipe wherein the pipe is adapted to be closed by plugs at each end, one of the plugs having a port to which a hose leading from a pump may be connected in order to fill the pipe with water, and the other plug having a bleed valve through which air may be vented from the pipe as it is filled. Pump pressure is applied to the water in order to test the pipe, and water is then drained from the pipe to permit the pump hose to be disconnected from one plug for use in testing another length of pipe.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: February 14, 1984
    Assignee: Hydra Systems Mfg, Inc.
    Inventors: William M. Roberts, Fred L. Herman
  • Patent number: 4430888
    Abstract: A system is disclosed for rapid on-site analysis of a water-borne oil-slick, which system utilizes a combination of devices designed to permit on-site determination of the water content and specific gravity of the oil/water mixture, and the initial boiling point of the water-free oil.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: February 14, 1984
    Assignee: Labofina, S.A.
    Inventors: Andre Lepain, Robert Bronchart, Roger Remacle
  • Patent number: 4430889
    Abstract: A fluid loss test can be performed using a housing having a substantially cylindrical core disposed therein and having a cage paddle structure disposed therein substantially coaxially around the core thereby permitting continuous agitation and even fluid shear rates to be maintained during test periods. The core has an axial opening defined therein through which lost fluid permeating the core can be collected. The core is secured in the housing so that reverse flow permeability tests can be conducted thereon. Although secured in the housing during tests, the core is removable therefrom so that filter cakes applied to the core can be analyzed. The housing is maintained within a system which permits successive fluids to be introduced into the housing while maintaining substantially constant system pressure. Additionally, measured volumes of fluid can be introduced into the housing.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: February 14, 1984
    Assignee: Halliburton Company
    Inventor: David L. Sutton
  • Patent number: 4430890
    Abstract: A method of studying steady and unsteady supersonic gas flow using a two layer hydraulic analogy technique. The method simulates the specific heat ratio of the gas. Two layers of immiscible liquids having different densities and thicknesses are held in a shallow container. The densities are chosen and the layer thicknesses are adjusted to simulate the specific heat ratio of the gas. A model of a device to be studied is submerged in the liquid. Relative flow is caused to occur between the model and liquid simulating steady flow. The depth of the lower layer during the period of relative flow is measured and is analogous to steady state gas flow characteristics. For studying unsteady flow two bodies of liquids each having two layers of liquids of densities chosen, and lower layer thicknesses adjusted to simulate the specific heat ratio of the gas and to simulate a high and low pressure across a gas system, are held in a container separated by a removable gate.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: February 14, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Franklin D. Hains
  • Patent number: 4430891
    Abstract: A method and apparatus for measuring the volume of a chamber in a part, such as the combustion chamber of an internal combustion engine cylinder head by, comparing the test chamber with a reference chamber of known volume, wherein the reference chamber is exposed to the part containing the test chamber so that ambient variables are minimized, and accurately controlled quantities of a gas are injected into each chamber and the difference in pressures in the chambers read as a function of test chamber volume, and thereafter the rate of change of pressure differences in the chambers is read as a function of chamber leakage and the volume measurement discarded if the rate of change exceeds a determined value.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: February 14, 1984
    Inventors: Albert E. Holm, Grant A. Holm
  • Patent number: 4430892
    Abstract: Methods and means are disclosed for the monitoring of conditions in a mud circulation system as used in the drilling of oil and gas wells, and to quickly detect and indicate pressure failures that may occur in that system to thereby allow for the maximum time and opportunity for remedial action.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: February 14, 1984
    Inventor: Allen J. Owings
  • Patent number: 4430893
    Abstract: A pneumatic lung analog for simulating spontaneous breathing and for testing of ventilatory devices used with spontaneously breathing patients and a kit for modifying training test lungs for this purpose is provided. The lung analog comprises a frame, a test ventilator, or lung simulator, expansible chamber; and a spontaneous breath expansible chamber disposed on the frame for receiving the output of a ventilatory device and a spontaneous breath generator, respectively. A movable end plate is disposed on the lung simulator and spontaneous breath expansible chambers for concurrent movement therewith when the spontaneous breath expansible chamber is inflated. Transducers are provided for measuring the airway pressure and the volume of air supplied to the lung simulator chamber by the ventilator being tested for determining the performance characteristics of the ventilator, such as the added work of breathing attributable to the ventilator.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: February 14, 1984
    Assignee: Michigan Instruments, Inc.
    Inventor: Clare E. Barkalow
  • Patent number: 4430894
    Abstract: An improved integrating accelerometer having a plurality of proof masses adapted to move relative to a casing in response to accelerations of the casing, a temperature compensated damping mechanism, and fluid resistors for extending the temperature operating range and for calibrating.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: February 14, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William C. Albert, Bart J. Zoltan
  • Patent number: 4430895
    Abstract: A piezoresistive acceleration sensing transducer is disclosed which enables low cost microcircuit construction of accelerometers. A silicon wafer is etched to form individual acceleration sensing elements each of which includes a mass ring suspended from a diaphragm and mounted to a center pedestal support portion. A plurality of piezoresistive strain gauges are located on the diaphragm about the periphery of the pedestal portion and are positioned to form a circuit for sensing strain produced in the diaphragm by movement of the mass ring in response to acceleration. A pair of temperature sensors are located in a zero-stress area of the diaphragm to compensate for temperature effects. In one embodiment, the gauges are coupled in a bridge circuit to provide a measure of acceleration in one axis only. In another embodiment, the mass ring is modified to locate its center of mass above the plane of the diaphragm so that the mass ring responds to acceleration in three axes.
    Type: Grant
    Filed: February 2, 1982
    Date of Patent: February 14, 1984
    Assignee: Rockwell International Corporation
    Inventor: Russell F. Colton
  • Patent number: 4430896
    Abstract: An apparatus for detecting cracks possibly produced in a workpiece whose distortion is being removed under pressure exerted by a pressing rod of a distortion removing machine. A detection signal produced by a sensor embedded in the pressing rod during a first predetermined period is compared with a first predetermined signal level for determining whether or not the cracking occurs in the workpiece. A detection signal produced by the acoustic emission sensor during a second predetermined period in which the workpiece is subjected to the pressure of the pressing rod without involving cracks is compared with a second predetermined signal level to determine whether or not the detecting apparatus itself operates normally.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: February 14, 1984
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kazuo Fujimori, Akira Banno
  • Patent number: 4430897
    Abstract: An acoustic microscope and method are disclosed in which an object under investigation is excited by two energy sources. Acoustic waves are propagated from the heated area of the object and the waves are detected and analyzed.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: February 14, 1984
    Assignee: The Board of Trustees of the Leland Stanford University
    Inventor: Calvin F. Quate
  • Patent number: 4430898
    Abstract: A novel method for imaging body tissues is disclosed wherein an ultrasonic pulse having a radially asymmetric side-lobe pattern surrounding a central focal lobe is generated. A receiver for receiving echoes of this pulse is provided which exhibits a sensitivity to echoes from the aforementioned side-lobe pattern which is relatively decreased by comparison to its sensitivity to echoes from the central focal lobe. In the preferred embodiment, square transducers which are rotated with respect to the focal axis by about 45.degree. are used to practice the disclosed method.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: February 14, 1984
    Assignee: Technicare Corporation
    Inventors: William S. Trimmer, David H. R. Vilkomerson
  • Patent number: 4430899
    Abstract: To provide a high output signal, a strain bolt (12, 12a) is screwed (13, 13a) into a tapped bore extending through the housing wall (10), the bolt having a bore (14) extending therethrough, and a region or zone (18) of reduced outer diameter to form a comparatively thin-walled tubular or sleeve-like region which, upon application of fluid, typically liquid fuel pressure within the housing, tends to elongate the portion of the bolt of reduced wall thickness; a piezo-ceramic transducer assembly, preferably formed of two oppositely polarized disks (23, 24) is clamped between an integral head (FIG. 1: 19) or a separate clamping nut (FIG. 2: 31) and the outer wall of the housing, or an abutment surface formed by the upper surface of an intermediately positioned tightening nut (FIG.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: February 14, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Wolf Wessel
  • Patent number: 4430900
    Abstract: A pressure responsive switching device, particularly a pressostat or thermostat, comprises an actuating element (5) which is loaded in one direction by an operating element (1) at the pressure and in the other direction by a main spring (9) by way of a force transmission device (10). The latter has a physical quantity (P.sub.k) which is variable with the force transmitted by the operating element. In addition, there is a measured value generator (23) which, depending on this physical quantity, delivers an electric analogue signal (S). The force transmission device may comprise a compensating force producer (10) in the form of an expansion element (15) which is provided with a liquid-vapor filling and a heating device (21), by which the compensating force of the force of the operating element (1) is made to follow. In this way, the switching device can deliver an analogue signal (S) corresponding to the system pressure (P) by using the same operating element (1).
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: February 14, 1984
    Assignee: Danfoss A/S
    Inventor: Knud V. Valbjorn
  • Patent number: 4430901
    Abstract: A fluid flow meter of the type having a vaned rotor mounted in a measuring chamber is provided with a series of inlet apertures arranged around the chamber with each aperture having one face (84) which extends sufficiently in the circumferential direction as to meet the opposite face (90) of the adjacent aperture. Since almost the entire periphery of the chamber wall is formed by apertures the collection of inflowing fluid is maximized while the apertures serve to direct at the rotor vanes (66) jets of fluid which are placed for maximum efficiency.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: February 14, 1984
    Assignee: Brown Boveri Kent Limited
    Inventor: Ivor T. Rogers
  • Patent number: 4430902
    Abstract: An apparatus and method of converting reciprocating motion to rotary motion. The apparatus includes an endless rack assembly reciprocally mounted for reciprocating motion through a stroke; a cooperating pinion rotatably mounted on a rotatable element operative to track the rack assembly; and lock means cooperating with said rotatable element for blocking rotation of said element during a substantial portion of said stroke. The method comprises reciprocating the rack assembly under control of a power source; causing a first pinion of a rotatable pinion assembly which cooperates with the endless rack assembly to traverse the rack assembly continuously as said rack assembly reciprocates effective to rotate the first pinion continuously in a given direction; using the first pinion to drive a second pinion of the pinion assembly; and using the second pinion to drive a flywheel and an output shaft thereby rendering power output uniform throughout a given cycle.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: February 14, 1984
    Inventor: Kenneth S. McClure
  • Patent number: 4430903
    Abstract: An improved amusement or game device of the type which has one or more indicia-bearing rotatable reels which are rotated upon initiation of play by a player is disclosed. The game device has an improved main drive mechanism which permits the player to vary the initial rotational speed of the reels in direct proportion to the speed in which an associated operating handle is pulled. A supplemental drive mechanism is included for increasing the speed of the reels if the player fails to pull the operating handle with sufficient force to rotate the reels at a predetermined minimum speed. The device also includes an improved indexing means for stopping the reels in accordance with the operation of the game device. The game device also includes means for absorbing excessive energy that may be provided by a player pulling the operating handle with extraordinary speed or force.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: February 14, 1984
    Assignee: Bally Manufacturing Corporation
    Inventors: Donald E. Hooker, Roman A. Tojza
  • Patent number: 4430904
    Abstract: A multiple speed ratio transmission includes constantly meshed gears defining a plurality of forward speed ratios, a reverse idler gear slidable into meshing relationship with the constantly meshed gears to define a reverse speed ratio, control means including a selector and an interlock for selecting and engaging the gear ratios, and an anti-clash brake mechanism for retarding rotation of the constantly meshed gears prior to engagement of the reverse idler gear therewith. The brake mechanism includes a friction ring on one of the constantly meshed gears, and an arm extending from the interlock for blocking rotation of the friction ring when the selector is moved so as to select the reverse speed ratio.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: February 14, 1984
    Assignee: Borg-Warner Corporation
    Inventor: Mark J. Fogelberg
  • Patent number: 4430905
    Abstract: Adjustable steering column for a motor vehicle of the type comprising two shaft sections connected by an articulated coupling and wherein the improvement consists in providing two casings for respective sections, assembled by flanges, at least one of which is inclined with respect to the normal to the longitudinal axis of the casing.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: February 14, 1984
    Assignee: Bendiberica S.A.
    Inventor: Raimon S. Bruguera