Patents Assigned to Emhart Industries, Inc.
  • Patent number: 5019147
    Abstract: A pivotally mounted mold support has a cylindrical roller extending parallel to the pivot shaft. A pivotal lever arm is connected to the mold support via a link which is connected to the pin supporting the cylindrical roller. The lever arm has a cam surface which engages the roller to close the mold support and establish a line of force extending between the axis of the roller and the axis of the pivot shaft.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: May 28, 1991
    Assignee: Emhart Industries, Inc.
    Inventors: Gary R. Voisine, Kenneth L. Bratton
  • Patent number: 5014894
    Abstract: An automatic riveting machine determines that an operator has manually removed a rivet from the nose of the gun by sensing its insertion into the nose and its subsequent absence prior to gun operation.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: May 14, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Charles F. Smart
  • Patent number: 5012968
    Abstract: A device for controlling access to an actuator of a fastener manipulation system as described. The device includes a discriminator which cooperates with moveable elements to allow access of authorized objects and to prevent operation of the actuator upon insertion of unauthorized objects.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: May 7, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: William Hylwa
  • Patent number: 5008653
    Abstract: A fluid detection system includes a central monitor, an overfill probe for detecting the approach of the overfill condition of a tank of liquid, and n other probes, where n is an integer greater than or equal to 1. The probes are connected to the monitor via electronic cables. The monitor communicates with the probes by producing probe identifier signals comprising integers starting with zero up to the number n. Each probe includes a signal receiving and sending means which compares the identifier signal sent by the monitor to a preset identifier number for that probe and sends a status signal indicative of the fluid status at that probe when it receives the identifier signal that is the same as the preset number. The overfill probe is set with the identifier zero. The monitor includes a timing circuit which determines a six second probe check cycle.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: April 16, 1991
    Assignee: Emhart Industries, Inc.
    Inventors: Roy E. Kidd, Raymond J. Andrejasich, Hilary Michel, Laurence S. Slocum
  • Patent number: 5006677
    Abstract: A housing includes a switch chamber and a plunger chamber communicating with the switch chamber. A plunger is slidable within the plunger chamber. Cam surfaces on the plunger operate electrical switches in the switch chamber. There is an axial channel in the plunger, and a slot through the plunger wall communicates with the channel. A vacuum passageway passes from one side of the housing, into the channel, and a solid extension of the passageway passes through the slot, and into a hole in the opposite wall of the housing. As the plunger moves in and out, the slot slides on the extension to guide to stabilize the plunger. A vent hole in the vacuum passageway opens into the channel. A sealing member slides in the channel along the axis of the plunger, alternately sealing and unsealing the vent hole as the plunger moves. A spring seated between the plunger and the sealing member permits the plunger to continue moving when the sealing member is seated in the passageway vent hole.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: April 9, 1991
    Assignee: Emhart Industries Inc.
    Inventors: John W. Smith, James P. Meagher
  • Patent number: 5003563
    Abstract: A first sensor at a first location along a conveyor provides a first signal indicating whether or not a container is present at the first location while a second sensor similarly provides a second signal indicating whether or not a container is present at a second nearby location. The first and second signals are input to a logic circuit which outputs a count pulse only if the the inputs are of a proper form in a proper sequence designed so that dither is ignored. The sensors are diffuse reflection type sensors operating at different frequencies. They are mounted so their sensing axes converge at about a 15 degree angle and the sensor lenses are about 3.5 inches from the point of conveyance. A mounting system allows the sensors to be moved up/down and in/out with respect to the conveyor and maintain a position perpendicular with both the container sidewall and the container flow direction.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: March 26, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: David A. Passmore
  • Patent number: 4999040
    Abstract: A glassware forming machine contains molten glass and distributes runners of molten glass through a refractory orifice ring having a plurality of discharge holes. The refractory orifice ring includes an annular side wall of uniform cross-section, a bottom wall of uniform thickness, and a discrete number of strengthened areas on the interior of the annular side wall at selected locations equidistant from each pair of the holes. The periphery of each of the holes also has an increased thickness.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: March 12, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Michael J. Stankosky
  • Patent number: 4995662
    Abstract: A pick-up head (10) of the apparatus has three alternative pick-up surfaces (24,34,64) formed respectively on a body (16), a first piston member (30), and a second piston member (60). The first piston member (30) is slidable in a cylinder (22a) formed in the body (16) and the second piston member (60) is slidable in a cylinder (48a) formed in the first piston member (30). The piston members (30,60) are movable between projecting positions and retracted positions. When both piston members are retracted, the surface (24) of the body (16) is used, when only the second piston member (60) is retracted, the surface (34) of the first piston member (30) is used, and, when neither piston member is retracted, the surface (64) of the second piston member (60) is used.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: February 26, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Victor T. Hawkswell
  • Patent number: 4996658
    Abstract: A glass container inspection machine including a bottle handling mechanism which presents glass containers to a capacitive sensor which provides a voltage signal representative of the thickness of the glass container, a computer which receives the voltage signals, a keyboard for inputting data into the computer, and a display. The thickness of a glass container is measured at four points, and as each point is presented to the sensor, the measured thickness in input into the computer, which stores the sensed voltages, correlates them to the input thicknesses, and calculates a curve used to determine glass thickness from sensed voltage. Alternatively, the minimum and maximum thicknesses of a glass container are measured, input into the computer, the container is passed through the machine, and the computer correlates the lowest and highest voltages sensed with the minimum and maximum thicknesses respectively, and uses this data to generate the calibration curve.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: February 26, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Russ J. Baker
  • Patent number: 4986844
    Abstract: Each section (10) of the machine comprises a parison moulding apparatus (12), a final moulding apparatus (14) and an invert mechanism (16). The invert mechanism is driven by a servo-motor (108) connected to a gear (100, 102) secured to an end portion of a neck ring support (90, 92) of the invert mechanism away from the center-line of the section. The baffle mechansim (32) of the parison moulding apparatus (12) is mounted on an overhead structure (22) and the mould portions (62) of the final moulding apparatus (14) are moved in a straight line to open and close the moulds. By these measures, the center-line of the section (10) is cleared enabling the radius of the invert mechanism (16) to be reduced.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: January 22, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Frank A. Fenton
  • Patent number: 4986712
    Abstract: A flanged nut is received by a cup washer which is slightly larger than the flanged nut to allow rotation of the nut relative to the washer. The cup washer is deformed (staked) to capture the nut about its flanged periphery. The nut is designed to rotate relative to the washer during assembly to assure two known, constant bearing surfaces regardless of the nature of the panel surface beneath the washer. The flanged nut has a large nut-to-washer bearing area capable of optimizing stress distribution at high loads.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: January 22, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Robb M. Fultz
  • Patent number: 4980803
    Abstract: A housing has a window with a plurality of panes. There is a light guide member in the form of first and second plates meeting at right angles. The first plate has white indicia painted on it and the light guide member is positioned so that the indicia are viewable in the window, one indicia in each pane. A red arm slides along the first plate on the side opposite the window. The arm is made of light guide material and is attached to a slidable tape and a lever passes through a hole in the tape so that the indicating arm moves in coordination with the lever to provide a red background to the one of the indicia in the window that indicates the position of the lever. A blue plate on the side of the arm opposite the window provides a blue background to the other indicia in the window.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: December 25, 1990
    Assignee: Emhart Industries, Inc.
    Inventors: James W. Richmond, Ellis P. Lipp
  • Patent number: 4978380
    Abstract: A mould mechanism for a glass forming machine comprises two mould supports which have first end portions which are mounted on parallel shafts for linear movement between mould open and mould closed positions. The mould supports are moved by mould operating mechanisms which each comprise a hydraulically operated piston and cylinder device providing one of the shafts. A clamping mechanism is provided to latch the mould supports together when in mould closed position.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 18, 1990
    Assignee: Emhart Industries, Inc.
    Inventors: Hermann H. Nebelung, Johann Zsifkovits
  • Patent number: 4972985
    Abstract: A vacuum pulls a spent mandrel through a gun bore and into a collection tube which discharges into a collector. Gun operation and mandrel entry into and departure from the collection tube are sensed and blockage of the mandrel within the collection tube and the jamming of the mandrel in the rivet gun are determined and signalled to the operator. The cycle immediately continues when the mandrel is cleared.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: November 27, 1990
    Assignee: Emhart Industries, Inc.
    Inventors: Charles F. Smart, Anthony D'Aquila
  • Patent number: 4972566
    Abstract: A glass container inspection machine includes a head assembly, a console, and a cable connecting the two. The head assembly includes a measuring oscillator and a reference oscillator the outputs of which are applied to a Phase Detector Multiplier. A fixed resistance in the output circuit of the measuring oscillator is selected so that the output of the Phase Detector Multiplier is the same no matter what the frequency of the oscillation. The oscillation and the Phase Detector Multiplier are part of a Phase Locked Loop, the amplifier portions of which are in the console. The machine is comprised of four such data channels, each of which includes a head assembly operating at a different oscillator frequency. All components that are frequency dependent are included in the head assembly while all components in the console are frequency independent. Thus the output of any of the head assemblies may be connected via the cable to any of the data channels of the console.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: November 27, 1990
    Assignee: Emhart Industries, Inc.
    Inventors: Robert P. Andersen, Paul F. Scott, Edward F. Vozenilek
  • Patent number: 4973210
    Abstract: A non-expandible anchor for use in tensile zones of strong material having a compressive strength of at least 20 N/mm.sup.2 includes a cutting portion having a deep, coarse, raised, external helix formed with a cutting edge and having interruptions along the helix which act as chip breakers and permit removal of debris during insertion in a pre-prepared bore drilled in the strong material.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: November 27, 1990
    Assignee: Emhart Industries, Inc.
    Inventors: Michael L. Osborne, Stephen J. Morris, Stephen G. Richardson
  • Patent number: 4970462
    Abstract: There is described a speed sensor that is particularly adaptable to moving vehicles such as automobiles. A permanent magnet, stator assembly, and field coil are held within a ferromagnetic cup that is adapted to mate a bearing assembly of a non-driven wheel of the vehicle. A rotor assembly is carried by the wheel spindle. The rotor assembly has poles spaced entirely around the circumference of a circle while the stator assembly has only a few poles distributed over an arc of a portion of a circle. A magnetic flux is provided by the permanent magnet, which flux passes through the stator poles and the rotor poles. The ferromagnetic cup completes a flux path between the stator and rotor poles, and also to the magnet. The rotor poles rotate with the wheel, causing a changing magnetic flux which in turn generates an alternating voltage current in the field coil. The alternating current so generated is then fed through an electrical terminal to a vehicle computer.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: November 13, 1990
    Assignee: Emhart Industries, Inc.
    Inventor: James W. Richmond
  • Patent number: 4968933
    Abstract: There is described a speed sensor that is particularly adaptable to moving vehicles such as automobiles. A permanent magnet, stator assembly including a stator pole piece, and field coil having an aperature are held within a cup that is adapted to mate a bearing assembly of a non-driven wheel of the vehicle. The stator pole piece is carried substantially within the aperature of the field coil. Rotor poles are carried on the wheel spindle. A magnetic flux is provided by the permanent magnet, the flux passing through the stator poles and the rotor poles which rotate with the wheel in close proximity to the stator assembly, causing a changing flux field. The changing magnetic flux in turn generates an alternating voltage current in the field coil. The alternating current so generated is then fed through an electrical terminal to a vehicle computer.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: November 6, 1990
    Assignee: Emhart Industries, Inc.
    Inventor: James W. Richmond
  • Patent number: 4967786
    Abstract: A single, rectangular piece of sheet metal is rolled to form a tube having a split seam. A cylindrical piece of rubber is inserted in the cylinder with the ends of the rubber cylinder flush with the ends of the metal tube. The cylinder is squeezed or crimped to close the ends of the piece of sheet metal at the seam and cause the metal tube to grip the rubber, thereby forming an armature.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: November 6, 1990
    Assignee: Emhart Industries, Inc.
    Inventor: Michael R. DuHack
  • Patent number: D314500
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: February 12, 1991
    Assignee: Emhart Industries, Inc.
    Inventor: Robert A. Germain