Patents Represented by Law Firm Davis, Hoxie, Faithfull & Hapgood
  • Patent number: 5324179
    Abstract: In a motor pump where the cooling of the motor section and the lubrication of bearings are achieved by an independent circulation system of a treating liquid by an auxiliary impeller, the pressure of a motor section, that is, the pressure of the treating liquid circulating is raised more than the suction pressure of a main process (the suction pressure of a main impeller). The treating liquid circulating from a front rotor chamber is caused to flow through a passage into an inlet port which is separated radially outside by a selected distance L from a suction inlet portion of the auxiliary impeller. This raises the pressure at the inlet port (the pressure of the front rotor chamber) to a pressure which is higher than the pressure at the suction inlet port by a magnitude corresponding to the distance L.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: June 28, 1994
    Assignee: Nikkiso Co., Ltd.
    Inventor: Yuzo Nakagawa
  • Patent number: 5325499
    Abstract: A computer system including a write protection circuit and a write poster is disclosed. The write protection circuit provides page description information to the computer system for controlling various operations. Illegal write operations as defined by the page description information are prevented from reaching a system bus and external cache. Internal cache invalidate operations may also be performed transparently to system operation. The write poster accepts write operations in zero wait states and assembles them into fewer more efficient writes to memory. A unique method and apparatus for programming a descriptor random access memory (RAM) is also provided.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 28, 1994
    Assignee: Tandon Corporation
    Inventors: David A. Kummer, Robert T. Rumer
  • Patent number: 5324923
    Abstract: An apparatus for forming a dynamically variable machine readable N-ary code executes operations on an electronic code. The apparatus includes a generator for generating a machine readable non-electronic code in response to the received electronic code. A data integrity enhancer forms the electronic code into output blocks which are formed as a linearly determined function of the binary values of the N-ary digits of the electronic binary code.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: June 28, 1994
    Assignee: International Data Matrix, Inc.
    Inventors: Robert S. Cymbalski, Christen V. Nielsen
  • Patent number: 5323442
    Abstract: An X-ray source that produces X-rays as a result of igniting an electron cyclotron resonance plasma inside a vacuumated dielectric spherical chamber filled with a heavy atomic weight, non-reactive gas or gas mixture at low pressure. The spherical chamber is located inside a non-vacuumated microwave resonant cavity that is in turn located between two magnets to form a magnetic mirror. Conventional microwave energy fed into the resonant cavity ignites the plasma and creates a hot electron ring which electrons bombard the heavy gas and dielectric material to create an X-ray emission. The X-ray source is suitable for surface and volume sterilization of foodstuffs, packaged goods, medical supplies, blood products and other materials and medical diagnostic and therapeutic devices such as tomography, mammography and radiology.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: June 21, 1994
    Assignee: Ruxam, Inc.
    Inventors: Konstantin S. Golovanivsky, Valeri D. Dugar-Zhabon
  • Patent number: 5322660
    Abstract: A method of producing a fire-resistant glazing product comprising introducing a predetermined quantity of an epoxy based liquid resin material at an elevated temperature into a cavity defined between spaced apart glass panes so that at least one pane bows outwardly, moving the panes back into a substantially parallel, closely spaced apart relationship to cause the introduced resin material to fill the cavity and allowing the resin material to cure.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: June 21, 1994
    Assignee: Miller Construction Limited
    Inventor: James A. A. Hickman
  • Patent number: 5321750
    Abstract: A system for securely providing restricted display information having an encoder-transmitter for transmitting selected update data using information identification codes as enabling reception keys and a plurality of uniquely identified decoder-receivers for receiving the update data for display on a video screen. Authorized decoders are provided with enable reception keys so that subsequently transmitted data having an information identification code matching a reception key at a decoder-receiver may be received for subsequent display on the video screen. Symbolic signaling is used so that enabling a decoder-receiver with a reception key also provides display coordinate information for displaying the update data in the proper relative display location for the video screen of that enabled decoder, so that the update data subsequently transmitted is displayed using that display coordinate information.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: June 14, 1994
    Assignee: Market Data Corporation
    Inventor: Joseph S. Nadan
  • Patent number: 5320772
    Abstract: A cleaning composition for cleaning the surfaces of edible fresh fruits and vegetables. The composition comprises water and a preservative, and preferably also a co-solvent with a dielectric constant less than that of water, a surfactant, a flavorant, and a buffering agent to maintain the composition's pH within the range of 2 to 9. The invention further comprises a fibrous wiper impregnated with the cleaning composition for wiping the fresh produce, and a dispenser for storing the impregnated fibrous wiper.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: June 14, 1994
    Assignee: Empire Products Packaging Development, Inc.
    Inventor: R. Eugene Tricca
  • Patent number: 5318164
    Abstract: An apparatus and method for reducing vandalism and minimizing damage from liquids injected into apertures of a vending machine is described. An anti-salting module, having a housing with an integral tray for collecting liquids, is connected beneath a bill validator in a vending machine A rubber fillet is connected to the rear of the bill validator and directs injected fluids to the tray. A moisture sensor integral to the tray is connected to detection and control circuitry. When moisture is detected, the detection and control circuitry operates to interrupt power and control signals to the bill validator. Other external sensors, such as a second moisture sensor and a continuity sensor for monitoring the status of other vending machine components, may also be connected to the detection and control circuitry. After moisture has been detected, vending machine power and control signals can be restored only when moisture is no longer present, and a SET switch is depressed by service personnel.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: June 7, 1994
    Assignee: Mars Incorporated
    Inventors: Elwood E. Barnes, Thomas E. Shuren, David C. Deaville, Michael Chittleborough
  • Patent number: 5318594
    Abstract: A cardiac pacemaker that is programmable to have one of a DDD and an AAI pacing mode of operation such that the pacing mode best suited to the patient's physiological condition is selected and implemented. The heart is paced in the AAI mode during periods of atrio-ventricular conduction. It automatically switches to pacing the heart in the DDD mode in response to a lack of atrio-ventricular conduction, and automatically switches back to the AAI mode after occurrence of a restoration event including restoration of atrio-ventricular conduction. Time delays for use in the DDD mode are calculated during operation in the AAI mode prior to loss of atrio-ventricular conduction and other timing delays for monitoring the patient's current physiological condition for mode switching are calculated.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: June 7, 1994
    Assignee: ELA Medical
    Inventors: Marcel Limousin, Sylvie Girodo, Odile Malherbe
  • Patent number: 5316124
    Abstract: The present invention relates to a method and apparatus for a money-operated, low-powered, vending and dispensing apparatus which is solely battery-powered and which can be utilized in the vending or dispensing of products or services. The present invention comprises at least one battery, a control system housed on a control board, money sensing and validating devices, circuitry to perform a battery power test and to indicate a low battery power condition, circuitry and devices to determine the acceptability of various types of money, or its equivalent, which could be accepted by the apparatus, and circuitry and devices to indicate such acceptability. The present invention further comprises a product delivery circuit and device, circuitry to indicate the activation, or lack thereof, of the product delivery device, and circuitry and a device to indicate when the apparatus is being serviced.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: May 31, 1994
    Assignee: Mars Incorporated
    Inventors: Elwood E. Barnes, Ronald R. Bernardini, Geoffrey A. June
  • Patent number: 5313973
    Abstract: An installation for the supply of oxygen including an oxygen source and an oxygen generating unit, where oxygen is supplied simultaneously to a mixing frame from the oxygen source and oxygen generating unit. An emergency frame may be included as well.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: May 24, 1994
    Assignee: Dessarollos, Estudios & Patentes, S.A.
    Inventor: Francisco B. Fabregat
  • Patent number: 5315687
    Abstract: Signal processing structures for providing direct prediction coefficients and direct Least Square-Finite Impulse Response (LS-FIR) filter coefficients. The structures include one or more processors, and a storage and retrieval structure for selectively storing predictor and filter coefficients and intermediate variables, to thereby allow the one or more real processors to emulate a plurality of virtual processors, which take the form of a side fed superlattice structure, in the case of linear prediction, and a side-fed superlattice-superladder structure, in the case of direct LS-FIR filtering.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: May 24, 1994
    Assignee: Adler Research Associates
    Inventors: George Carayannis, Christos Halkias, Dimitris Manolakis, Elias Koukoutsis
  • Patent number: 5312403
    Abstract: A bone gripping pincers for osteosynthetic purposes has a swivel joint (1) that can be locked, a minimum of two jaws (2, 3) and a minimum of two legs (4, 5). After bone fragments have been set by means of the bone gripping pincers, its swivel joint (1) can be locked, so that it can act as a permanent bone clamp. The legs (4, 5) can be removed. By a connection pin (9) mounted on the pincers, it is possible to combine several bone pincers into a stable osteosynthetic setting device.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: May 17, 1994
    Assignee: Synthes (U.S.A.)
    Inventor: Robert Frigg
  • Patent number: 5312402
    Abstract: The connection device (20) for adjustable connection of a first with a second structural element (12, 13), particularly tubes or rods, for a setting device has an external component (21) with a cylindrical hole and two internal components (22) inserted into the hole so that they can be slid axially and rotatably, each of which said internal components (22) has through openings (24, 25) crossways to the axial direction of the components to hold a structural element (12, 13). By means of loading means (23, 29), designed as a nut/screw connection, the internal component (2) is pushed axially to the external component (21) and thereby grips the inserted structural elements (12, 13).
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: May 17, 1994
    Assignee: Synthes (U.S.A.)
    Inventors: Johannes F. Schlapfer, Martin Hess
  • Patent number: 5312728
    Abstract: A probe for the detection of a nucleic acid target sequence containing a molecular switch comprising three essential elements: a probe sequence of 20-60 nucleotides surrounded by switch sequences of 10-40 nucleotides which are complementary to each other, wherein the state of the switch is useful for selectively generating a detectable signal if the probe is hybridized to a target; also, assays and kits utilizing such probes.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: May 17, 1994
    Assignees: Public Health Research Institute of the City of New York, Inc., The Salk Institute for Biological Studies
    Inventors: Paul M. Lizardi, Fred R. Kramer, Sanjay Tyagi, Cesar E. Guerra, Hilda M. L. Buyoli, Barbara C. Chu, Gerald F. Joyce, Leslie E. Orgel
  • Patent number: 5312451
    Abstract: Upon detection of a ventricular extrasystole, a pacing control algorithm is brought into play to trigger: a stimulation of the atrium, a controlling of the atrium at a faster pacing rate than that of the ventricle during some cycles, a synchronous controlling of the ventricle during a period that is a multiple of a programmed number of cycles, and subsequent to the programmed number of cycles, a slowing of the ventricular rate until either the programmed base rate is reached or a further sinus detection occurs. The algorithm is inactivated on certain conditions, inhibited on certain conditions, and reactivated on further sensed ventricular extrasystoles.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: May 17, 1994
    Assignee: ELA Medical
    Inventors: Marcel Limousin, Remy Nitzsche, Nicolas Rosset
  • Patent number: 5312109
    Abstract: A soccer court comprises a rectangular playing area approximately the size of a tennis court and preferably covered with artificial turf, an enclosing wall with goal openings in the end walls and goal nets disposed outside of the playing area. The enclosing wall is constructed of a plurality of rigid transparent panels held in place by horizontal and vertical supports. Player entry doors are provided in the enclosing wall. The goal may optionally be configured as an inverted U and/or provided with doors to fully or partially close the goal opening. A backstop net is provided above each end wall to block errant shots on the goals, and the playing area may be bisected to create two substantially square training areas.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: May 17, 1994
    Inventor: David G. Cagle
  • Patent number: 5311116
    Abstract: A multi-channel electromagnetically transparent voltage probe transmission link system for monitoring a plurality of voltage signals at a plurality of test points of a device under test that is subjected to a radiation field. Each channel includes two voltage probes, an electrical to optical signal transmitter, an optical signal transmission line and a receiver located out of the radiation field. The voltage probes contact and sense the voltage signals at the test point. The electrical to optical transmitters are removably mounted in a common base and are powered by either a common (or shared) power supply and/or by dedicated power supplies, such as rechargeable batteries. The receivers process the optical signals and provide display signals corresponding to the sensed voltage signal at the plurality of test points for evaluating the effect of the test radiation field.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 10, 1994
    Assignee: Electronic Development, Inc.
    Inventor: Wesley A. Rogers
  • Patent number: 5310619
    Abstract: A positive photoresist composition is provided which can be used in the presence or absence of atmospheric moisture. There is used a major amount of a commercially available resin, such as a novolak, a dissolution inhibitor with thermally labile t-butyl ether or ester groups, and an aryl onium salt.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: May 10, 1994
    Assignee: MicroSi, Inc.
    Inventors: James V. Crivello, Michael J. O'Brien, Julia L. Lee
  • Patent number: 5307869
    Abstract: In a plate heat exchanger each one of a stack of plate elements consists of two heat transfer plates which define between themselves a flow space for a heat exchange fluid and which are permanently joined together, for instance by brazing, around their edges and at several places distributed over the heat transfer portions of the plates. Each heat transfer plate has protuberances and depressions formed by pressing in its heat transfer portion and has port portions with at least four through flow openings. Adjacent plate elements are permanently joined together, for instance by brazing, only around each of the through flow openings. The stack of plate elements is held together by members extending through said through flow openings.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: May 3, 1994
    Assignee: Alfa-Laval Thermal AB
    Inventor: Ralf Blomgren