Patents Represented by Law Firm Fitch, Even, Tabin, Flannery & Welsh
  • Patent number: 4328097
    Abstract: An improved apparatus for filtering frying oil in a cooker apparatus includes the steps of adding diatomaceous earth to oil in the cooking vessel; draining the oil into a drain pan; drawing the oil through a filter positioned in said drain pan, such that said earth is deposited on the surface of said filter; and returning said oil to the cooking vessel. Thereafter, the oil is filtered by the steps of draining the oil into said drain pan such that the earth is not disturbed to any substantial extent off of the surface of said filter; drawing the oil through said filter; and automatically returning said oil to the cooking vessel.The improved apparatus includes attaching said drain pan and filter to said cooker apparatus and positioning a metallic plate between the drain opening of said vessel and said filter such that the oil drained into said drain pan is initially deflected to prevent disturbing the diatomaceous earth deposited on the surface of said filter.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: May 4, 1982
    Inventors: Bennie M. Whaley, Janice C. Whaley
  • Patent number: 4327841
    Abstract: This invention teaches an improved cover designed to be positioned in place over an electric outlet box otherwise exposed on the outside of an exterior wall operable to weatherize the wall and minimize leakage past the outlet box. The cover has a tubular wall, and a flange and closure wall are integral with the tubular wall and disposed at its opposite ends respectively transversely thereto. The cover is formed of plastic and is unitary, with the tubular wall being continuous circumferentially, with the flange extending radially outward from the tubular wall and being continuous peripherally, and with the closure wall having an opening therein which corresponds in size to the access opening on the outlet box. The cover flange is positioned flush against the exterior wall with the closure wall opening lined up adjacent the outlet box, and the flange is secured by nails or the like to the exterior wall in this position.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: May 4, 1982
    Inventor: Joseph Wimberly
  • Patent number: 4326609
    Abstract: A device for automatically reducing excess play in moving parts of brakes comprises a stem moved axially from a rest position to an operative position.The stem can be threaded into a coupling lever such as to accommodate the drift of the rest position, to this end the stem being furthermore provided with a projecting arm imparting thereto a play compensating torque by engagement against an end-of-travel detent.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: April 27, 1982
    Assignee: Steelyamamoto International Company Ltd.
    Inventor: Franco Sala
  • Patent number: 4326304
    Abstract: A heart valve has an elliptical occluder mounted for pivoting in an annular heart valve body with a circular passageway between an open position to allow blood flow through the passageway and a closed position to block blood flow. A pair of ears extend from the occluder into a pair of opposed pie-shaped depressions in the interior wall of the valve body so that the relative rotation of the ears along the verticies of the depressions defines an eccentric pivot axis. The occluder seats in its closed position against a lip which protrudes inward of the interior wall on the major side of the eccentric axis.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: April 27, 1982
    Assignee: Hemex, Inc.
    Inventor: Jerome J. Klawitter
  • Patent number: 4327246
    Abstract: Improved shielding members and electric cable constructions which utilize these shielding members are described. Various configurations of the shielding members can be used to enclose a single cable circuit consisting of one or more conductors in two concentric metallic shielding layers fabricated from a single shielding member which provides excellent electrical isolation for the cable circuit. Generally, the shielding members comprise an elongated ribbon of insulating material and a pair of elongated foil strips arranged in parallel relationship with the ribbon. The foil strips are bonded to opposite sides of the ribbon and each has an elongated edge generally in alignment with opposite elongated edges of the ribbon. The selective use of layers of heat sensitive sealing material for sealing the shielding layers protects the cable circuits from moisture.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: April 27, 1982
    Assignee: Belden Corporation
    Inventor: John W. Kincaid
  • Patent number: 4326493
    Abstract: In an ignition system for an internal combustion engine, current from a d.c. power supply is applied through an input inductor alternately through an ignition coil and through a circuit path in shunt of the ignition coil. The current through the ignition coil is made of substantially constant predetermined magnitude while flowing through the shunt circuit, preferably by means of a fixed ballast resistor in the shunt circuit. Switching of the current into the ignition coil is enabled during a predetermined fraction of the engine cycle, with no current applied to the ignition coil between predetermined periods. The current is switched back and forth between the two paths a plurality of times during each predetermined period.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: April 27, 1982
    Assignee: Autotronic Controls, Corp.
    Inventor: James W. Merrick
  • Patent number: 4326134
    Abstract: Integrated circuit system for generating a rise-time regulated and level controlled high voltage pulse utilizing a plurality of diode-connected stages driven by capacitively coupled low voltage clocks. The maximum output voltage may be controlled by a gated diode reference device, which provides a reference voltage independent of power supply voltage. A feedback circuit may be provided which controls the high voltage rise time by modulating the effective low voltage clock amplitude driving the high voltage generator. A MOS logic level interface circuit may also be provided for sensing achievement of the predetermined high voltage level.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: April 20, 1982
    Assignee: Xicor, Inc.
    Inventors: William H. Owen, Richard T. Simko, Wallace E. Tchon
  • Patent number: 4326244
    Abstract: A booster circuit is disclosed for enabling a flyback power supply having a power transformer normally operative in a free running mode to have an increased power output at high loads, comprising a clock circuit including a first transistor that is turned on whenever a resistor-capacitor network times out before the end of the flyback interval of the power supply, with the result that the flyback interval is caused to terminate early, and the power transformer to begin recharging. A second transistor acts to disable the operation of this first transistor whenever the output voltage of the power supply is found to not be in regulation.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: April 20, 1982
    Assignee: Astes Components, Ltd.
    Inventor: Elliot Josephson
  • Patent number: 4324804
    Abstract: A soft bodied cream cheese which is readily spreadable at refrigeration temperatures is prepared by blending a cultured cream cheese dressing mix having substantially unhomogenized milkfat with a firm bodied cream cheese curd having homogenized milkfat and packaging the blend at an elevated temperature.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: April 13, 1982
    Assignee: Kraft, Inc.
    Inventor: Loren L. Davis
  • Patent number: 4324074
    Abstract: A building structure and method of making the same are disclosed wherein an inflatable form is inflated and an insulation layer of urethane foam is applied to the undersurface of the form. Hanger members are secured to the foam layer by adhesively affixing planar base portions of the hangers to the foam layer whereafter additional foam is applied to embed the hanger bases. Reinforcing mesh is secured to and supported by the hangers followed by the application of one or more layers of a cementitious material which is allowed to cure. Air pressure beneath the form is progressively increased to maintain a substantially constant uplift force on the foam. The inflatable form may be removed after curing and a protective coating applied to the outer exposed surface of urethane foam to protect it from ultraviolet degradation.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: April 13, 1982
    Inventors: David B. South, Barry South
  • Patent number: 4323382
    Abstract: Disclosed is a method of pressing glass articles, especially feet of glasses with integrally formed stems, by pressing a portion of a glass lump or parison into a mold having the (internal) contour of the glass article to be formed, with the other portion of the parison being left behind outside of the mold, and wherein the glass article is subsequently separated from the remaining part of the parison which comprises cutting off the still plastified connecting strand or core between the remaining part of the parison and the glass article, following the pressing operation, directly at the glass article, and removing the strand lug or protrusion left on the glass article, after removal of said glass article from the mold.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: April 6, 1982
    Assignee: Dorma Glas GmbH & Co. KG
    Inventor: Herman Fuller
  • Patent number: 4323721
    Abstract: An improved shielding member and electric cable constructions which utilize this shielding member are described, the design of the shielding member allowing two cable circuits, each consisting of one or more conductors to be wrapped in and electrically isolated by a single shielding member. The shielding member comprises an elongated ribbon of insulating material and a pair of elongated foil strips arranged in a parallel relationship with the ribbon, the foil strips being bonded to opposite sides of the ribbon and each of the foil strips having an elongated edge generally in alignment with opposite elongated edges of the ribbon. The shielding member is wound in a generally S-shaped configuration forming two envelopes, each of the cable circuits being encased in, and electrically isolated by, one of the envelopes.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: April 6, 1982
    Assignee: Belden Corporation
    Inventors: John W. Kincaid, Robert E. Ward
  • Patent number: 4323961
    Abstract: A free-running flyback DC power supply includes a transformer having at least one primary and one secondary winding, a transistor switch in series with the primary winding for controlling when current from a source of DC power is coupled through said winding, and a rectifier circuit attached to the secondary winding for generating a DC output voltage. A conventional regulator circuit causes the transistor switch to turn off primary winding current as a function of the present value of DC output voltage. A second circuit senses excessive current in the primary winding and causes the transistor switch to turn off independently of said regulator circuit, to protect against damage to the transistor switch or transformer. A third circuit detects when the DC source voltage is below a predetermined minimum and causes the transistor switch to turn off independently of said regulator circuit. Regulation of the output DC voltage is also maintained as a function of the present value of DC source voltage.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: April 6, 1982
    Assignee: Astec Components, Ltd.
    Inventor: Elliot Josephson
  • Patent number: 4322728
    Abstract: A transducer monitoring system includes a transducer assembly positioned at a remote location which operates to measure the change in at least two separate physical phenomena. The transducer assembly is coupled to a central location, such as at the top of an oil drilling platform, by means of a single conductor with a grounded shield. The transducer assembly includes a stepper switch for separately selecting each of said transducer elements and for enabling current applied to said cable and transducer assembly to generate an output voltage representative of the present state of the resistance of each such transducer element. The improved invention requires only a single constant current pulse to both generate said output voltage and to switch the stepper switch to the next contact. Calibration and comparison resistors are also included in said transducer assembly.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: March 30, 1982
    Assignee: Systems, Science and Software
    Inventor: Warren G. Ginn
  • Patent number: 4320719
    Abstract: A piggery comprises a water-cooled metal ceiling, said piggery being run by making the cooling of the metal ceiling and of the air carried into the piggery through openings in the ceiling, dependent primarily of automatical sluicing devices and secondarily controlled by temperature and relative moisture in the piggery in such a manner that the flow of cooling water, which is completely or partially introduced through water nozzles over the metal ceiling, is increased when the automatical sluicing devices are worked or the temperature in the piggery is too high, whereby optimum conditions for the interior climate of the piggery are obtained with the least possible draft.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: March 23, 1982
    Inventor: Sven O. Clemmesen
  • Patent number: 4321075
    Abstract: A process and apparatus for skimming the surface of molten glass in a tank to produce a portion thereof free of contamination includes driving a substantially horizontally disposed strut connected to a scraper arm so as to pivot the strut to raise the scraper arm for horizontal movement above the glass surface, pivot the strut to effect vertical movement of the scraper arm to immerse the arm in the melt, retract the strut to horizontally move the arm while immersed to effect skimming and thereafter simultaneously pivoting and retracting the strut to effect both vertical and horizontal movement of the arm.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: March 23, 1982
    Inventors: Emil Ilk, Helmut Sorg
  • Patent number: 4319706
    Abstract: A percussion tool, disclosed as a nail driver, having a plunger-like hammer or driver which is driven through working and return strokes by a power piston movable in a cylinder which is pressurized with a working fluid and vented by selective actuation of a unique and simplified valving arrangement to effect the working and return strokes. The disclosed nail driver has a nail magazine which is attached to the tool in a novel and rugged manner which resists bending and other damage of the magazine by the periodic impact forces generated in the course of nail driving operation of the tool.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: March 16, 1982
    Inventor: Donald B. Halstead
  • Patent number: 4319948
    Abstract: Individualized sequenced sheets are carried along a conveyer to a predetermined location where an adhesive pattern is applied prior to reaching a card-affixing station where a corresponding individualized sequenced card is attached. A reciprocating carriage removes the lowermost card from a stack of cards in a magazine and feeds the card into the nip between a driven squeeze roller and the conveyer whereby the card is affixed via the adhesive pattern.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: March 16, 1982
    Inventors: Robert B. Volkert, John K. Volkert
  • Patent number: 4318963
    Abstract: This invention provides for improvement in the preservation of cellulosic materials through solubilization of a dried metal alkoxide, particularly magnesium methoxide, in an alcohol with the presence of carbon dioxide. The solution is applied to cellulosic materials by various known methods resulting in deacidification with improved aging properties imparted to the materials. The treated cellulosic materials have improved characteristics and printed materials do not blur or run.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: March 9, 1982
    Inventor: Richard D. Smith
  • Patent number: 4317523
    Abstract: A storage structure includes at least four posts which provide the vertical framework for a rack arrangement. The posts are interconnected in pairs to form end frames and have vertical rows of slots in opposite surfaces. Longitudinally extending channels are connected to the posts by hooks having lower camming edges. After the hooks are received in the slots in the posts, the channels move downward to tighten the connection. The channels are used in matching pairs, and upwardly extending tabs are formed in the lower flange of the outer channel whereas the upper flange is formed with pockets or slots. The inner channel includes downwardly extending tabs in its upper flange, which are received in the slots or pockets of the outer channel, and similar pockets or slots in its lower flange which receive the upwardly extending tabs.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: March 2, 1982
    Assignee: Speedshelf International, Inc.
    Inventors: Anthony N. Konstant, John J. Weider