Patents Represented by Attorney Joseph S. Iandiorio
  • Patent number: 4963773
    Abstract: A compact low pass/high pass filter phase shifter including a semiconductor switch having a control electrode and first and second load electrodes; a first inductance connected in series with one load electrode and second inductance connected in series with the other load electrode; a third inductance connected in parallel with one load electrode to ground and a fourth inductance connected in parallel with the other load electrode to ground; a capacitance connected in series between the control electrode and ground; and means for applying a control signal to the control electrode for switching the semiconductor switch between a first state in which it operates as a low pass filter and a second state in which it operates as a high pass filter to introduce a phase shift in a propagated signal.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: October 16, 1990
    Assignee: Hittite Microwave Corporation
    Inventor: Yalcin Ayasli
  • Patent number: 4963855
    Abstract: A warning sound generating device includes a sound source member and an enclosure for protecting the sound source member. A front wall of the enclosure and a sound emitting portion of the sound source member face each other. The front wall of the enclosure has at least one continuous projecting wall extending toward the sound source member. The sound source member has at least one continuous projecting wall extending toward the enclosure and surrounding the sound emitting portion. The enclosure has a plurality of sound exits formed outwardly from the outermost projectng wall of the enclosure. The projecting walls of the sound source member and the enclosure cooperate to define a sound passageway through which a sound generated from the sound emitting portion passes. Each of the projecting walls has a thickness decreasing from the base to the forward rim thereof, so that the passageway has a width between the projecting walls increasing from the sound emitting portion to the sound exits.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: October 16, 1990
    Assignee: Kobishi Electric Co., Inc. Ltd.
    Inventor: Yoshikazu Kojima
  • Patent number: 4961352
    Abstract: A magnetic rotor suspension system including a magnetic rotor having a spin axis, and a generally spherical housing spaced from the rotor. The system includes means attached to the housing for applying magnetic fields to the rotor to fix its lateral and axial position relative to the housing and to adjust the angular orientation of the spin axis of the rotor relative to the housing.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: October 9, 1990
    Assignee: SatCon Technology Corporation
    Inventors: James R. Downer, David B. Eisenhaure, Richard L. Hockney, Bruce G. Johnson
  • Patent number: 4960596
    Abstract: The slow release preparation obtained by the method of the invention reduces the number of times the medicine needs to be taken per day, and also provides lower peaks of concentration in the blood after the medicine has been taken while simultaneously ensuring that the lowest concentration in the blood remains higher over a period of time.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: October 2, 1990
    Assignee: Ethypharm
    Inventors: Patrice Debregeas, Gerard Leduc, Jean-Francois Boyer
  • Patent number: 4959965
    Abstract: A monitoring system for detecting contamination of a liquid entrained in a circulating fluid, including a housing having an inlet for receiving the fluid, a reservoir for containing extracted liquid, and an outlet portion disposed in predetermined relationship with the reservoir for venting the fluid from the housing. There is also a separator, which may be formed as part of the housing, for extracting liquid from the fluid and directing the extracted liquid to the reservoir. A probe, disposed in the reservoir, measures an electrical parameter representative of the electrical resistance of the liquid to detect a change in resistivity indicative of contamination of the liquid.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: October 2, 1990
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Fredrick D. Browne, Jacob H. Martin
  • Patent number: 4958874
    Abstract: A mobile unit comprises a lorry trailer having side wall portions which pivot down to form an enlarged floor and upwardly-slidable panels or frames from which unfold side-roof portions, e.g. canopies or pivotable panels.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: September 25, 1990
    Inventor: Leslie J. Hegedus
  • Patent number: 4959642
    Abstract: A loop-powered, backlit liquid crystal display (LCD) responds to a current instrumentation loop for providing a current representative of the value to be measured and an LCD for displaying the measured value. A light-emitting diode (LED) circuit, which includes an LED disposed proximate to the LCD, is interconnected with, and driven by, the current of the current instrumentation loop for backlighting the LCD.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: September 25, 1990
    Inventor: Kenneth R. Sharples
  • Patent number: 4956544
    Abstract: An electric cartridge heater for use as an immersion heater in a steam table tank has a tubular elongate stainless steel sheath with a curved inner surface attached to a riser tube adapted to be connected to a wall of the tank and contains an electric heater element. A copper heat transfer member having an enlarged, curved surface complementary to the inner surface of the sheath is urged into close, intimate thermal contact therewith and transfers heat from the sheath to a bimetal thermostat for turning off the heater element in response to a rise in temperature of the sheath above a predetermined level.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: September 11, 1990
    Assignee: Hotwatt Inc.
    Inventor: Samuel S. Sayward, Jr.
  • Patent number: 4953976
    Abstract: A gas species monitor system includes a sample volume for receiving a gas to be monitored; an external, independent laser source; means for directing the laser radiation to the volume; a multipass optical cell, responsive to the means for directing, for multiplying the laser radiation intensity in the sample volume; means for continuously flowing the gas to be monitored through the sample volume; a narrow bandpass filter; means for collecting more than a steradian of Raman scattered radiation from the sample in the volume and directing the collected radiation in parallel through the narrow bandpass filter; and means responsive to the parallel radiation from the filter for detecting the Raman scattered radiation representative of the concentration of the species in the gas sample being monitored.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: September 4, 1990
    Assignee: Spectral Sciences, Inc.
    Inventors: Steven Adler-Golden, Neil Goldstein, Fritz Bien
  • Patent number: 4949267
    Abstract: A site-selectable air traffic control system and method for interacting with a user, the system and method generating a representation of at least one moving aircraft having an initial position and heading with respect to a selected site for producing a dynamic simulation of an air traffic scenario. The site selected may consist of one of a plurality of stored sites or a modification of one of those sites. Controller commands issued by a user are entered for altering the air traffic scenario. Rules and procedures stored in a general knowledge base and a site-specific knowledge base are compared to the present state of the simulation of the air traffic scenario or to the controller command by an expert system for issuing a warning upon the immediate or foreseeable failure to observe any rule or procedure in the knowledge bases.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: August 14, 1990
    Assignee: UFA, Inc.
    Inventors: Arthur Gerstenfeld, Michael N. Gualtieri, Thomas D. Moody
  • Patent number: 4948927
    Abstract: A visco-elastic delayed actuator and system are provided, including a visco-elastic delayed actuator which includes a restorable and collapsible structure having at least two confronting surfaces and a resilient member interconnecting the surfaces. A visco-elastic delay member including visco-elastic adhesive on at least one of the confronting surfaces of the structure provides a visco-elastic holding force when the confronting surfaces come into mutual contact with the visco-elastic adhesive. The delayed actuator system also includes a support section and an operator member mounted in the support section. A resilient member in the structure biases the operator member in a first state while permitting the operator member to be selectively switched to a second state, thereby initiating a visco-elastic delay period.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: August 14, 1990
    Assignee: Piezo Electric Products, Inc.
    Inventor: Vic Pajak
  • Patent number: 4943734
    Abstract: An optical inspection system and method for detecting flaws on a diffractive surface such as a reticle or wafer, includes illuminating a surface to be inspected to generate a first scattered energy angular distribution in response to a flaw on the surface and a second scattered energy angular distribution in response to an unflawed surface; the first and second energy distributions are sensed and the minimum energy detection energy level is established; determining whether the minimum detected energy level is in a first or second predetermined energy range and indicating that no flaw is present when the minimum detected energy level is in the first range and a flaw is present when the minimum detected energy level is in the second range.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: July 24, 1990
    Assignee: QC Optics, Inc.
    Inventors: Carl E. A. Johnson, Jay L. Ormsby, Eric T. Chase, George S. Quackenbos, Sergey V. Broude, Abdu Bou dour
  • Patent number: 4941861
    Abstract: An interlocking shaft coupling including a disk-shaped body having two end faces and an interlocking element disposed on each of these faces. Each interlocking element has a substantially circular cross section and a longitudinal axis parallel to a diameter of the disk-shaped body. The coupling can be attached to opposing rotary shafts by hubs which fit over the shafts and have receiving elements which engage with the interlocking elements of the shaft coupling.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: July 17, 1990
    Assignee: Electronic Instrument & Specialty Corp.
    Inventor: Robert A. Painter
  • Patent number: 4938409
    Abstract: Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the particles, and placing the particles onto the substrate. The device is heated to a first temperature slightly below the melting point of the silver material, then briefly heated to a second temperature above 1100.degree. C. to rapidly melt the silver material to wet the particles and substrate and to generate alloying among the silver material, the particles, and the substrate. The device is allowed to cool to solidify the alloy and unite the particles and substrate to form a porous coating on the device. Also disclosed are a prosthetic device having a metal shaft for insertion into a bone canal, and a porous coating of metal particles brazed to the metal shaft by a silver material.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 3, 1990
    Assignee: Nuclear Metals, Inc.
    Inventor: Peter R. Roberts
  • Patent number: 4939703
    Abstract: A baffle for enlarging the field of view of and enhancing collection of radiation for a sensor apparatus having a transducer for receiving radiation within its field of view. The baffle includes a base securable proximate the transducer, and at least one blade element extending from the base outwardly from the transducer. The base element includes a proximal edge transecting the transducer to establish at least two apertures for the transducer for enlarging its field of view. The blade element is reflective for the radiation to enhance collection of the radiation from a periphery of the enlarged field of view.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: July 3, 1990
    Assignee: Denning Mobile Robotics, Inc.
    Inventor: Lon J. Muller
  • Patent number: 4932685
    Abstract: A variable color print of an image including an image medium having a plurality of differently oriented local image regions. Each region includes a number of periodic variations in an optical characteristic of the medium which extend substantially in a first direction within that region and are generally parallel to each other in a second direction transverse to the first direction. Each region further includes a number of periodic variations in color which extend in the first direction and are generally parallel to each other in the second direction and are generally aligned with the periodic optical variations in that region. The periodic optical variations selectively prevent viewing of one or more of the color variations at different viewing angles to generate changes in color of the viewed image as the viewing angle changes. A method of forming such a variable color print is also disclosed.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: June 12, 1990
    Inventor: Robert J. Mancuso
  • Patent number: 4924496
    Abstract: An automatic incoming telephone call number display system for detecting an incoming call and identifying the party associated with the incoming call number. The system includes a directory of telephone numbers and parties associated with those numbers. Circuitry detects the origin telephone number of an incoming telephone call and compares that number with numbers in the directory for identifying the calling party. A display permits the user to view the incoming call number and party associated with that number.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: May 8, 1990
    Assignee: Romek Figa d/b/a Abraham & Sons
    Inventors: Romek Figa, Jonathan H. Cohen, Samuel G. Cohen
  • Patent number: 4920975
    Abstract: An apparatus for collecting biological fluid includes a container having an open end and a closed end; a funnel including a mouth at one end and a discharge portion at the other end, the discharge portion being removably attachable to the container to establish fluid communication between the funnel and the container; a cap for closing the container opening; a cover for the mouth of the funnel, which cover has a chamber for releasably holding the cap with the inside of the cap facing outward for engaging with the container opening; and a base having a top which includes a container recess for receiving the closed end of the container to support at least a portion of the container above the base.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: May 1, 1990
    Assignee: Biomedical Polymers, Inc.
    Inventor: John E. Fay
  • Patent number: 4920255
    Abstract: An automatic incremental focusing scanner system which optically reads a code pattern on an object. The system includes a scanner which directs a beam of radiation onto the object at one of a number of focal lengths. The system further includes a range determining unit for measuring the range of the object relative to the scanner, and a mechanism for alternating the focal length of the radiation beam to selectively focus it as commanded by a control module. The focal length of the beam is adjusted based on the measured range to enable accurate reading of the code pattern.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: April 24, 1990
    Assignee: Stephen C. Gabeler
    Inventor: Stephen C. Gabeler
  • Patent number: 4917156
    Abstract: The device (102) is intended to inject a gas under pressure into an aerosol receptacle (100) through a pump or spray head crimped onto said receptacle. The purpose of the gas is to prevent air from penetrating into the aerosol receptacle as the liquid contained therein is sprayed out. The device is actuated by the pressure of the filling gas and it includes a damping system for ensuring uniform operation.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: April 17, 1990
    Assignee: Valois
    Inventor: Jean-Pierre Varlet