Patents Represented by Law Firm Davis, Hoxie, Faithfull & Hapgood
  • Method and plant for improving keeping qualities of food products
    Patent number: 5308629
    Abstract: For improving the keeping qualities of certain food products, especially sliced meat products, it is suggested that the food products immediately after they have been packed are subjected to a heat treatment by means of microwave energy, so that they are maintained at a temperature in the interval 50.degree.-80.degree. C., preferably 50.degree.-70.degree. C., during a time period of 5-60 seconds. The food products (12) are moved by means of an endless belt (9) in a path across an elongated wave guide (15, 21) which has at least one slot (19; 22, 23) extending across the whole food products movement path.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: May 3, 1994
    Assignee: Alfa-Laval Food Engineering AB
    Inventor: Tommy Noren
  • Automatic adjustment of the control function for a rate adaptive pacemaker
    Patent number: 5303702
    Abstract: A cardiac pacemaker having a pacing rate responsive to a control function of a physiological parameter indicative of activity levels. The coefficients of the function are automatically calculated and modified in response to the trend of the measured physiological parameter in order to correspond to the patient real needs. For monitoring the physiological parameter minute ventilation (VE), the basic value VE low and maximum value VE max are calculated in order to vary the slope and intercept of the straight line representative of the control relation of the pacing rate FC by the minute volume VE.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: April 19, 1994
    Assignee: ELA Medical
    Inventors: Jean-Luc Bonnet, Odile Malherbe
  • Dry solids materials feeder with vibrating mechanism and a method of vibrating various component parts of the feeder
    Patent number: 5301844
    Abstract: A volumetric dry solids materials feeder comprises a supply hopper, a feed trough disposed below the hopper, and an auger disposed in the feed trough to feed out the material. The trough is anchored to a vibration base, on which is mounted a vibratory mechanism. A vibration transfer spring connects the vibration base to a bracket secured to the hopper. Upon activation, the vibratory mechanism vibrates the vibration base and thus the trough at a predetermined frequency, while the spring transfers the vibration to the hopper. The spring lessens the amplitude of the transferred vibration and changes the frequency thereof, so as to minimize interference (primarily harmonic problems) between the vibration of the hopper and trough.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 12, 1994
    Assignee: Acrison, Inc.
    Inventor: Ronald J. Ricciardi
  • Two-part angle plate
    Patent number: 5300074
    Abstract: A device for the setting of bone fractures near joints, particularly in the area of proximal and distal femur fractures, as well as the proximal tibia, has a plate blade (2) designed for implantation in the bone fragment (1) near the joint, and a side plate (4) designed for attachment to the shaft of the tubular bone (3) remote from the joint, which are separably connected.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: April 5, 1994
    Assignee: Synthes (U.S.A.)
    Inventor: Robert Frigg
  • Locked inlay knit fabrics
    Patent number: 5299435
    Abstract: A method of knitting a double needle bed fabric in which an inlay thread or yarn 12 is interlaced into the fabric by transferring stitches from the active needles (10) of one needle bed to the needles of the other bed. In this way the inlay 12 is interlaced or "woven" into the fabric without actually forming loops in the inlay 12. This enables materials that cannot be knitted to be incorporated into fabrics securely.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: April 5, 1994
    Assignee: Courtaulds PLC
    Inventor: Sylvan A. Whalley
  • Preparation of sterically-hindered organosilanes
    Patent number: 5296624
    Abstract: The invention relates to compositions containing compounds of the structure (I):(R.sub.1).sub.a (R.sub.2).sub.b SiX.sub.c (I)wherein R.sub.1 is a neophyl, neohexyl or (CH.sub.3).sub.3 SiCH.sub.2 --group; R.sub.2 is a methyl group; X is a halo group or a saturated, unsaturated, branched, unbranched or cyclic alkoxy group of 1-18 carbon atoms; a is 1 or 2, b is an integer from 0 to 2, and c is an integer from 1 to 3.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: March 22, 1994
    Assignee: Huls America, Inc.
    Inventors: Gerald L. Larson, Barry Arkles
  • Surgical instrument for positioning osteosynthetic elements
    Patent number: 5295991
    Abstract: A surgical instrument for treating fractures of the neck and shaft of the femur has a frame attachable to an intramedullary pin inserted in the medulla and bearing a drill jig for inserting screws into the femur head.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: March 22, 1994
    Assignee: Synthes (U.S.A.)
    Inventor: Robert Frigg
  • Method and device for separating a fibre suspension
    Patent number: 5296098
    Abstract: A fibre suspension is separated by a filter device having a hollow filter body (1) with a wall (2) of filter material, and a container (3). The entire fibre suspension to be separated is sprayed in the form of at least one liquid jet onto said wall (2) to force a fine fraction of the suspension containing most of said undesired particles through said wall of filter material into the hollow filter body, thereby leaving a created coarse fraction of the fibre suspension mainly containing fibres in the container outside the filter body. Relative displacement between the liquid jet and the filter material is provided. Said created coarse fraction is dewatered through the wall of filter material, and said dewatered coarse fraction is discharged from the container.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: March 22, 1994
    Assignee: Celleco Hedemora AB
    Inventor: Roland Fjallstrom
  • Method and apparatus for programming anti-fuse devices
    Patent number: 5294846
    Abstract: Improved apparatus and methods for programming anti-fuse devices utilized in programmable semiconductor chips are described. An anti-fuse device circuit is disclosed wherein an anti-fuse device is connected between two programming transistors, and each programming transistor is connected to a separate voltage supply bus and to a control bus network having, for example, a common control bus or separate control buses. Interconnection structures of anti-fuse devices can be formed and a targeted anti-fuse device can be programmed by connecting a programming voltage to the first associated supply bus, by connecting another voltage or ground potential to the second associated supply bus, and by turning on the appropriate control bus line or lines so that the programming transistors conduct to provide a voltage differential across the targeted anti-fuse device.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: March 15, 1994
    Inventor: John O. Paivinen
  • Clip-on heat sink and method of cooling a computer chip package
    Patent number: 5295043
    Abstract: A low-profile, clip-on heat sink for computer chip packages that releasably engages the side of the package and method for cooling computer chips is disclosed. The sink comprises a contact pad attached to a set of beams. Flanges extend down from the outer edges of the beams. The sink is engaged to the package by the flanges which attach to the sides of the package. When the sink is engaged to the package, the contact pad contacts the computer chip. When the chip is operating, heat flows from the chip to the contact pad. Heat then flows from the contact pad to the beams where it dissipates into the ambient surroundings. The sink may be released from engagement by deforming the flanges.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: March 15, 1994
    Assignee: Tandon Corporation
    Inventor: Gene Beijer
  • Brazed plate heat exchanger
    Patent number: 5291945
    Abstract: A plate heat exchanger is composed of a number of plate elements each of which comprises two thin nested plates, the elements defining flow spaces between them, adjacent elements being joined around their periphery by brazing bent edge portions, there being brims extending from the edge portions of each plate element, each brim being spaced from the brims of adjacent plate elements.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Alfa-Laval Thermal AB
    Inventors: Ralf Blomgren, Anders Engstrom
  • Apparatus for the heat treatment of particulate material such as food
    Patent number: 5284085
    Abstract: An apparatus for the heat treatment of particulate material such as food includes a vessel which may be pressurized or evacuated and a perforated agitator through which steam is furnished to a layer of the material under treatment in the bottom of the vessel while the agitator is oscillated.
    Type: Grant
    Filed: July 12, 1992
    Date of Patent: February 8, 1994
    Assignee: Alfa-Laval Food Engineering AB
    Inventor: Bengt Palm
  • Apparatus for the production of a dissociated atomic particle flow
    Patent number: 5282899
    Abstract: Apparatus for forming a source of dissociated and excited molecules from a working gas-plasma interaction for use in treating substrates such as hydrogen passivation of semiconductors. A plasma is generated under resonant conditions and confined in a reaction chamber by a magnetic mirror trap. The working gas is injected into the reaction chamber to intersect the confined plasma. The interaction forms a neutral species of dissociated and excited molecules and a charged species of ions and electrons. A multipole magnetic field is used to stabilize the plasma and maintain the charged particles of the plasma and the charged species away from the reaction chamber. The charged species is confined to the plasma by the net magnetic field so that the neutral species flows out of the reaction chamber for processing of substrates, e.g., hydrogenation of semiconductor materials.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: February 1, 1994
    Assignee: Ruxam, Inc.
    Inventors: Alexander A. Balmashnov, Konstantin S. Golovanivsky, Erzam M. Omeljanovsky, Andrew V. Pakhomov, Alexander Y. Polyakov
  • Sealing and packaging method and apparatus
    Patent number: 5282349
    Abstract: A horizontal form fill packaging and sealing apparatus comprises a film dispenser and a film forming plow which, together with a roller guide, forms the film to be sealed into a tube with the free edges at the side. The object to be packaged is inserted into the film tube. The free edges of the film are longitudinally sealed together at the side of the package by a rotary heat sealer and immediately cooled to approximate impulse sealing, and a cross seal is made at the front and back of the object to be packaged. The excess gas in the package is pressed out by a presser before the back cross seal is made.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: February 1, 1994
    Assignee: Weldotron of Delaware, Inc.
    Inventor: Martin Siegel
  • Plural compartment cartridge for flexible bills
    Patent number: 5282612
    Abstract: A cartridge for holding flexible bills in first and second stacks, comprises a cuboid housing having first and second openings on oppositely located walls thereof, a mechanism for opening and closing the first and second openings, and pressure plates disposed within the housing which press the first and second stacks against the first and second openings, respectively. The pressure plates are parallel to each other and are movable independently of each other along a common axis. At least one of the pressure plates is movable from its associated opening to the immediate proximity of the other pressure plate, thereby making maximum use of the interior space of the cartridge.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: February 1, 1994
    Assignee: Landis & Gyr Betriebs AG
    Inventor: Andre Gerlier
  • Device for guiding coins
    Patent number: 5277292
    Abstract: A device for guiding a coin arriving in an entry (6) of the device to a selected one of a plurality of exits (12) of the device, comprising a movable guide (14) having a plurality of inlets (16) each leading to a common outlet (18), the guide being movable to position the outlet in register with any selected one of the exits, and the inlets being so arranged that one of them is in a position to admit a coin arriving through the entry irrespective of the position of the guide, whereby the coin is guided from the one inlet via the common outlet to the selected exit.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: January 11, 1994
    Assignee: Mars Incorporated
    Inventor: Stephen C. Boxall
  • Planar, core saturation principle, low flux magnetic field sensor
    Patent number: 5278500
    Abstract: A device is disclosed for measuring low-flux magnetic fields with a sensor operating according to the core saturation principle. The sensor is provided with a ferromagnetic core, an excitation coil and a measuring coil. The measuring coil, the excitation coil and the ferromagnetic core are electrically insulated from one another, each being disposed in a single, separate, parallel layer on a support material.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: January 11, 1994
    Assignee: Landis & Gyr Betriebs AG
    Inventor: Thomas Seitz
  • Planar magnetic harmonic sensor for detecting small quantities of magnetic substances
    Patent number: 5276396
    Abstract: A device is disclosed for detecting the presence and/or determining the configuration of a magnetic substance. The device includes a magnetic circuit having a magnetic core and an air gap. Coupled to the magnetic circuit are an excitation coil, for periodically driving the magnetic circuit into saturation, and a measurement coil, for measuring the effective appearing permeability of the magnetic circuit in the presence of the magnetic substance.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Landis & Gyr Betriebs AG
    Inventor: Thomas Seitz
  • Method and apparatus for calculating the atrial escape interval for a cardiac pacing device in the event of atrial extra systoles
    Patent number: 5271394
    Abstract: A method for calculating the atrial escape interval. A calculation is made of the average value of the delays between two "P" waves measured over 8 heart cycles, and this average value is taken as the value of the atrial escape interval. The "P" wave is monitored to identify atrial extrasystole so that only competent "P" waves are used in determining the average value and, hence, the atrial escape interval.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: December 21, 1993
    Assignee: ELA Medical
    Inventors: Sylvie Girodo, Odile Malherbe
  • Screw nut for plate osteosynthesis
    Patent number: 5269784
    Abstract: This screw nut (1) is designed for the rigid fixation of a bone screw (15) to a bone plate (20) having plate holes (21). It has a generally cylindrical body (5,6) with a central axis (2), a central hole (3) with a hole axis (34) and an internal thread (4) designed to receive a bone screw (15). The body (5,6) comprises of a lower section (5), an upper section (6), a lower side (9) and an upper side (10). The profile (7) of the upper section (6) orthogonal to said hole axis (34) is smaller than the profile (8) of the lower section (5) orthogonal to said hole axis (34) and the upper section (6) is shaped to be insertable into the plate hole (21) of the bone plate (20).
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: December 14, 1993
    Assignee: Synthes (U.S.A.)
    Inventor: Jeffrey W. Mast