Patents Represented by Law Firm Kenway & Jenney
  • Patent number: 4631240
    Abstract: An improved metal-halogen electrochemical cell, particularly a zinc bromide cell, contains a water soluble tetraorgano-substituted amino acid, ester or betaine salt in the electrolyte which forms a substantially water insoluble liquid complex with cathodic halogen thereby reducing self-discharge of the cell.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: December 23, 1986
    Assignee: Tracer Technologies, Inc.
    Inventor: Fraser M. Walsh
  • Patent number: 4629414
    Abstract: The invention relates to a hot-gas generating burner comprising a nozzle charging a fuel jet which then enters a mixing tube, and an orifice plate surrounding the outlet of the nozzle. The casing of the burner is divided by the orifice plate into an upstream-disposed precombustion chamber which includes the nozzle, and a downstream combustion chamber which contains the mixing tube. The orifice has a central passage for the fuel jet which is discharged from the nozzle and a number of openings surrounding the passage. In order to reduce the noise concomitant with the operation of the burner, the spacing between the peripheries of the neighboring openings equals at least 50% of the diameter of the openings, and/or the openings in the orifice plate are associated with at least one air duct in the direction of flow.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: December 16, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventors: Winfried Buschulte, Erich Adis, Manfred Bader
  • Patent number: 4628392
    Abstract: An electrical connector system, particularly one that connects armored electrical cables for oil wells through an upper surface connector that is mated to a feed-through mandrel, automatically operates a circuit breaker in the main power circuit as the upper connector is unmated from the mandrel. A pair of relay (R) wires are carried with the main power conductors through the upper connector. A set of relay (R) contacts, preferably pins and sockets, electrically connect the R wires between the connector and the mandrel. The contacts in the mandrel are wired together. Unmating the connector withdraws the R pins from their sockets which trips a relay or otherwise operates the main circuit breaker. Power (P) contacts, preferably pins and sockets, for the main power conductors are longer than the R pins so that power in the main conductors is shut off before arcing can occur.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: December 9, 1986
    Assignee: BIW Cable Systems, Inc.
    Inventor: Robert G. Didier
  • Patent number: 4624140
    Abstract: The inside surface of a conductive vessel (preferably spherical) with insulated adjacent segments is coated with a dielectric layer. The vessel is then partly filled with a conductive liquid-like material such as mercury having an upper surface which remains approximately horizontal irrespective of the inclination of the vessel. The capacitance between the segments and liquid varies as a function of the vessel's inclination. Vibration-induced surface action also produces varying capacitance which can be detected for seismometer applications and the like.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: November 25, 1986
    Assignee: Optima Systems, Inc.
    Inventors: Jack A. Ekchian, Robert W. Hoffman, Leon Ekchian
  • Patent number: 4618305
    Abstract: An automatic system for feeding integrated circuits (IC's) stored in hollow tubes to the input of a test handler/sorter has an accumulating conveyor table that carries the tubes laterally to a pick-up position. The conveyor table is inclined from the horizontal and a stop surface at its lower edge supports and aligns a closed end of each tube. Sensor assemblies limit the lateral movement of the leading tube, assist in orienting the tube, and detect when it is located at the pick-up position and is properly oriented. The sensor assemblies generate a control signal that activates a gripping assembly organized about a plate that pivots on a rotating support frame. The gripping assembly includes centering cam inserts on one movable gripping member. One motor mounted on the frame rotates the gripping assembly and the gripped tube to the test handler/sorter input. The gripping assembly has a mechanism for controlling the discharge of IC's from the open end of the tube.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: October 21, 1986
    Assignee: Daymarc Corporation
    Inventors: Nicholas J. Cedrone, Kenneth R. Lee
  • Patent number: 4618399
    Abstract: An evaporation or distillation apparatus uses one or more tubes driven to wobble about a vertical wobble axis that is aligned with the tube. A fluid distributor supplies a fluid to the inner surface of the wobbling tube at its upper end. A flexible whip rod located at least in part within the tube slides around over the inner surface as the tube wobbles. The pressure generated between the wobbling whip rod and the tube spreads the incoming fluid stream into a very thin film having a uniform thickness over the entire length of the tube. In the preferred form the whip rod is anchored at its lower end to a stationary base and is restrained against rotation about its own longitudinal axis, but is sufficiently flexible at its lower end to act as a universal joint. In this preferred form the whip rod has a flexible core surrounded by at least one length of tubular sheathing.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: October 21, 1986
    Inventor: Yao T. Li
  • Patent number: 4616635
    Abstract: An instrument for the splaying of the edges of a wound which has at least one blade. The blade has a middle part, a rim projecting at right angles from the middle part, and a mount on which the middle part is held. The middle part has two parts movable against each other by an actuator comprising a turnable rod with a screw thread section.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: October 14, 1986
    Assignee: Aesculap-Werke Aktiengesellschaft
    Inventors: Wolfhard Caspar, Theodor Lutze, Theodor Schwarz
  • Patent number: 4612932
    Abstract: A magazine for receiving C-shaped scalp clips having legs connected by a bridge and with facing clamping jaws at their free ends. In order to improve positioning of the scalp clips during displacement along the magazine, the scalp clips are arranged one behind the other in the magazine such that the free ends of one scalp clip rest against the bridge of the adjacent scalp clip, the scalp clips have laterally open recesses in their bridges or the regions where legs and bridge meet and the magazine has guide rails extending along its length and engaging in these recesses.
    Type: Grant
    Filed: October 2, 1984
    Date of Patent: September 23, 1986
    Assignee: Aesculap-Werke AG vormals Jetter & Scheerer
    Inventors: Wolfhard Caspar, Theodor Lutze, Karl-Ernst Kienzle
  • Patent number: 4613074
    Abstract: In a high-pressure cleaner, in order to control additional equipment, such as chemical doser or burner, from a hand spray gun without any special control lines, it is proposed to connect a second closable flow path in parallel with the normal flow path through the spray nozzle, to determine the pressure rise time in the cleaning fluid after the switching on of the high-pressure pump and to generate a control signal by opening the second flow path to extend said rise time compared with the rise time when the second flow path is closed; furthermore, a high-pressure cleaner is proposed for implementing this process.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: September 23, 1986
    Assignee: Alfred Karcher GmbH & Co.
    Inventor: Werner Schulze
  • Patent number: 4611585
    Abstract: In a motor-driven cutter for the cutting open of plaster casts with a motor housing, a fixed center blade and two oscillatingly motor-driven blades disposed either side of the fixed blade and both interacting with said fixed blade and moving the cutter forward along the cut, in order to prevent unitentional contacting of the blades, it is proposed that a cover hood be displaceably mounted on the motor housing and be displaced by a flexible force storage means into a position covering the three blades whereby the cover hood exhibits glide-on surfaces which, as the cutter is pushed forward, glide on the plaster, thereby displacing the cover hood against the action of the flexible force storage means into a position exposing the blades.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: September 16, 1986
    Assignee: Aesculap-Werke AG vormals Jetter & Scheerer
    Inventor: Gerhard Steidle
  • Patent number: 4611805
    Abstract: A multi-position, multi-purpose portable exercise unit including a support bracket for securing the device to a door or bed frame, a T-shaped exercise bar, a multi-position bracket for positioning the exercise bar relative to the support bracket, and contoured handles connected to the exercise bar by heavy elastic cords with snap-in clips.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: September 16, 1986
    Assignee: Franklin Sports Industries, Inc.
    Inventors: Irving H. Franklin, Kurt M. Gluck
  • Patent number: 4611408
    Abstract: A mechanical averaging gauge for averaging displacements at a plurality of locations along the surface of an object. The gauge includes a measuring unit which is urged into contact with the surface of the object. Several probes extend from the measuring unit and rest on the surface of the object. The probes are interconnected by means of cylindrical sliding members in contact with the rear of each of the probes. Trapezoidal sliding members are disposed between the cylindrical members so that the displacement of the measuring unit from a reference surface is the average of the various displacements of the individual probes. The arrangement also results in each probe contacting the surface of the object with substantially equal force. Therefore, the arrangement has application as a clamping device.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: September 16, 1986
    Assignee: The L. S. Starrett Company
    Inventor: Robert A. Plante
  • Patent number: 4610623
    Abstract: A gas burner capable of heating a gas to a high temperature and pressure is isclosed. The burner utilizes a mixing canal to mix the fuel and oxidiser gases and a conically enlarging recess at the exit of the mixing canal. In the recess are both several intake openings for the gas to be heated which openings extend from feeder canals that are parallel to the mixing canal and a side canal leading to an ignition mechanism. The intake openings provide a gas-dynamic blockage of the fuel and oxidiser gas mixture.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: September 9, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventor: Heinrich Lambrecht
  • Patent number: 4608830
    Abstract: In order to achieve efficient refueling with a method and an apparatus for the automatic refilling of a liquid hydrogen tank in a motor vehicle in which the tank is connected to a liquid hydrogen supply line as well as a hydrogen gas return line, it is proposed that prior to commencement of refilling the liquid hydrogen tank the liquid hydrogen supply line in the vehicle be connected to the hydrogen gas return line and that liquid hydrogen be passed through said lines in order to cool them whereby only after they have been cooled is the liquid hydrogen supply line connected to the liquid hydrogen tank. For this purpose, a bypass line connecting the liquid hydrogen supply line to the hydrogen gas return line is provided in the motor vehicle, and electrically operable closing valves are provided in the liquid hydrogen supply line downstream of where the bypass line branches as well as in the bypass line.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: September 2, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventors: Walter Peschka, Gottfried Schneider, Willi Nieratschker
  • Patent number: 4607788
    Abstract: Disclosed is a valve for mixing hot and cold water consisting of a hollow body closed at one end and including an internal sleeve located by two annular flanges that define chambers between the sleeve and the body communicating, respectively, with hot and cold water inlets. Each chamber communicates with the interior of the sleeve by a radially directed passageway. A temperature actuated piston slides within the sleeve between a first valve seat formed by a face of a third annular flange extending inwardly of the sleeve above the cold water passageway to close the cold water passageway and leave the hot water passageway open and a second valve seat located at the bottom of the sleeve to close the hot water passageway and leave the cold water passageway open. The cold water passageway communicates directly with the mixing chamber formed in the sleeve and hot water passageway communicates with the mixing chamber via axial passageways formed in the piston.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: August 26, 1986
    Assignee: Meynell Valves Limited
    Inventors: Brian Bendall, Stephan W. Flannery
  • Patent number: 4604104
    Abstract: In a gasifying oil burner with an oil atomizing device, with combustion air upply means surrounding the atomizing device, with a shield having a shield opening, said shield being disposed downstream of the outlet of the atomizer, with a mixing tube disposed downstream of the outlet of the atomizer, with a mixing tube disposed downsteam of an co-axial with the shield opening, with a radial passage at an upstream portion of the mixing tube, with a generally cylindric flame tube whose upstream end is sealingly connected to the end wall of the combustion air supply means carrying the shield, and wherein it is proposed that the mixing tube be provided with a solid wall at a section thereof adjoining the shield, that the radial passage adjoin a part of the mixing tube provided with the solid wall, and that the axial length of the mixing tube portion with the solid wall extending between the shield and the radial passage be between the 0.1-multiple and the 0.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: August 5, 1986
    Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
    Inventors: Erich Adis, Manfred Bader, Winfried Buschulte
  • Patent number: 4600852
    Abstract: A surface acoustic wave (SAW) filter consists of two acoustically coupled transducers built on the same piezoelectric film or substrate. The transducers are constructed by depositing a conducting comb structure having interdigitated fingers on the substrate. Spacer elements are placed between gaps of the same polarity within the comb structure. The addition of the spacer elements permit non-zero gap weights of the same sign to follow one another, in contrast to the standard structure which forces these sources to alternate in sign. This added flexibility results in new withdrawal weighted structures that significantly increase the bandwidth over which the rejection band performance is good and also reduces passband ripple. The increase in the accuracy of the withdrawal weighting permissible with these new structures improves filter performance.
    Type: Grant
    Filed: October 30, 1984
    Date of Patent: July 15, 1986
    Assignee: Massachusetts Institute of Technology
    Inventor: Edward M. Garber
  • Patent number: 4599236
    Abstract: The invention provides a process for drying macadamia and other nuts in which the nuts are first subjected to a very high humidity, as between 85% and 100%, and heated to a temperature above normal room temperature, as between 35.degree. C. and 45.degree. C., then subjected to a relatively low humidity, as between 10% and 15%, while maintaining the temperature, and then subjected to a very low humidity, as between 1% and 10%, at about the same or a slightly higher temperature. The process takes several days, only, instead of 10 to 13 weeks taken by the customary process.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: July 8, 1986
    Inventors: Graeme C. Mudford, Robyn J. Mudford
  • Patent number: 4599132
    Abstract: In a low angle silicon sheet growth process, a puller mechanism advances a seed crystal and solidified ribbon from a cooled growth zone in a melt at a low angle with respect to the horizontal. The ribbon is supported on a ramp adjacent the puller mechanism. Variations in the vertical position of the ribbon with respect to the ramp are isolated from the growth end of the ribbon by (1) growing the ribbon so that it is extremely thin, preferably less than 0.7 mm, (2) maintaining a large growth zone, preferably one whose length is at least 5.0 cm, and (3) spacing the ramp from the growth zone by at least 15 cm.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: July 8, 1986
    Assignee: Energy Materials Corporation
    Inventors: David N. Jewett, Herbert E. Bates, Joseph B. Milstein
  • Patent number: 4598586
    Abstract: Apparatus for compensating an optical sensor utilizing a light emitting diode and a monolithic dual element photodiode as a null position sensor for changes in optical output efficiency or gain due to variations in temperature without knowledge of relative or absolute temperature. The optical sensor includes a light emitting diode and a dual element photodiode spaced apart from the light emitting diode and located so that each element of the dual element photodiode is equally illuminated. A pendulous mass is disposed between the light emitting diode and the dual element photodiode detector such that as it moves the amount of illumination received by each of the dual elements differs. Electrical apparatus is provided for producing a first signal proportional to the difference in output from the two photodiode elements, and this signal is used to null the position of the pendulous mass.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: July 8, 1986
    Assignee: Northrop Corporation
    Inventor: Michael S. Danielson