Time Delay Means Patents (Class 118/703)
  • Patent number: 4419168
    Abstract: Apparatus is provided for handling gasket-forming material. This material is usually supplied in tubular cartridge form and is dispensed to a screen with a porous pattern which shapes the material to the desired gasket-configuration. The material is spread on the screen and forced through to the other side where the gasket pattern is applied to an adjacent transfer surface of a transfer pad. This pad with the pattern on the transfer surface is moved to a mateable surface of a workpiece located on a support spaced from the screen. The gasket-forming material is then transferred to the mateable surface. The gasket-forming material is dispensed from the cartridge with the aid of a cartridge holder having an opening at one end to receive a spout of the cartridge and having a plunger at the other end with a plunger rod extending outwardly therefrom. A fluid-operated cylinder is aligned with the plunger rod and has a piston connected with the rod.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: December 6, 1983
    Inventor: William A. Paul
  • Patent number: 4407229
    Abstract: A hoist for dipping a package of lumber or other similar work product into a tank of liquid is fabricated basically as a weldment of readily available steel shapes and is of a rugged, reliable design. A vertically movable carriage with forwardly projecting prongs at its lower end receives a package of work product and clamps located above the prongs tightly clamp the package to the carriage during a dipping procedure. The hoist is designed to allow package delivery and removal, to and from the hoist, by a fork lift truck. After placing a package on the hoist the fork lift operator may push a single push button and a control system for the hoist thereafter causes the hoist to automatically go through a full cycle of operation including a immersion period the length of which may be manually adjusted.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: October 4, 1983
    Inventor: Dale Sanborn
  • Patent number: 4386578
    Abstract: A vacuum deposit device for use in producing thin film depositions. A metallic mass is accelerated along a pair of rail-type electrodes. The discharge current passing through the mass during acceleration is controlled as to magnitude and time duration to insure that the magnetic pinch pressure produced by the current exceeds the thermal expansion pressure of the mass thereby maintaining the mass in a solid, non-vapor state during acceleration. The device permits control over mass exit velocities and permits deposition areas of well defined shoulders.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: June 7, 1983
    Assignee: The Boeing Company
    Inventor: Ralph L. Haslund
  • Patent number: 4380967
    Abstract: A coating system for automatically discharging a coating material from a nozzle onto objects moving relative to the nozzle in a path past the nozzle. Each object receives two separately located quantities of the coating material from the single nozzle. A first sensor detects the presence of an object at a first point upstream of the nozzle, and a second sensor detects the presence of the object at a second point downstream of the first point and yet upstream of the nozzle. A delay timer is responsive to either of the sensors to produce a delay signal after a delay time corresponding to a predetermined distance of travel by the sensed object. A duration timer is responsive to the delay signal to produce a duration signal for a duration time corresponding to a predetermined distance of travel by the sensed object. The duration signal is used to create a control signal for effecting discharge of the coating material from the nozzle onto each object.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: April 26, 1983
    Assignee: Nordson Corporation
    Inventor: Timothy S. Matt
  • Patent number: 4354455
    Abstract: A variable sweep means connects the rotating shaft of an electric motor to a rotatable gas manifold in a rotary disc reactor to convert rotation of the shaft into reciprocating oscillation of the gas manifold. A cycle timing control means for varying electric motor speed at two independent speeds is connected to the electric motor. The control means varies the oscillation speed of the gas manifold at two sweep rates by varying electric motor speed automatically during each sweep cycle.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: October 19, 1982
    Assignee: RCA Corporation
    Inventor: Gary W. Looney
  • Patent number: 4265198
    Abstract: Apparatus for fixing toner images carried on a long footage of continuous web such as rolled paper or folded paper, uniformly but intermittently from end to end of the web. The apparatus includes a heating roller and a second roller and control circuitry. During fixation, the image bearing surface of the web is urged against the heated roller which is rotated to move the web, and during the intermission of fixation, the web is disengaged from the heating roller. Preferably, when the web is urged against the heating roller and/or when the web is disengaged from the heating roller, rotation thereof is stopped and the web is maintained in pressure contact with the stopped heating roller for a predetermined time.
    Type: Grant
    Filed: December 12, 1978
    Date of Patent: May 5, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukimasa Shinohara, Hiroo Ichihashi
  • Patent number: 4248174
    Abstract: A control system for a slide centrifuge includes a ratio checking circuit which produces a signal when the ratio between the light passing through the slide and the rate of change of this light passes through a predetermined critical value. When this ratio passes through the critical valve, spinning is stopped. This effectively stops spinning when the rate of reduction of blood cell density on the slide slows, thereby producing better slides for clinical analysis.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: February 3, 1981
    Assignee: Corning Glass Works
    Inventors: Robert C. Beaty, Gerald R. Mansfield