Patents Represented by Law Firm Fitch, Even, Tabin & Luedeka
  • Patent number: 4120187
    Abstract: A large flat metal plate is formed to have a three-dimensional shape of compound curvature by locally heating to an elevated temperature along predetermined lines and then quickly cooling, as by using a torch which carries a water spray nozzle. The heating extends completely through the thickness of the plate, and cooling causes significant shrinkage in the plane thereof in a direction perpendicular to the line of heating. Heating is carried out along lines in a geometric pattern and in a preselected sequence involving all quadrants of the plate so that it experiences a gradual transformation overall. The plate is normally supported upon an underlying cradle shaped to the desired compound curvature.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: October 17, 1978
    Assignee: General Dynamics Corporation
    Inventor: Roger F. Mullen
  • Patent number: 4120615
    Abstract: A box fan comprising a box-like structure containing an electric motor and a fan blade assembly operable by the motor, which structure consists of a front section and a rear section forming a box having front and rear openings which are interconnected to form a duct through said box, the fan blade assembly being positioned for causing air flow through the duct when the motor is operating, wherein the two sections are held securely together by a locking means including external resiliently operable disguised clamps which are disposed transversely of the interface between said sections.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: October 17, 1978
    Assignee: Allware Agencies Limited
    Inventors: Phillip William Keem, Laimons Kaimins, James Graham
  • Patent number: 4119170
    Abstract: A vehicle having an interacting steering-suspension system wherein a lower frame section having ground engaging wheels or tracks is interconnected to an upper overlying frame section through fluid pressure rams facilitating selective tilting of the upper frame section relative to the lower frame section. The upper frame section supports front and rear steering axle and wheel assemblies through axle support arms which are operative to steer the vehicle when the upper frame section is tilted or when the support arms are pivoted by actuating rams independently of tilting of the upper frame.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: October 10, 1978
    Inventor: Brian K. Hutcherson
  • Patent number: 4117711
    Abstract: A combination cutting and crimping tool arrangement is disclosed having a housing defining an anvil underlying a vertically movable mandrel cooperative with the anvil to crimp a tubular connector body onto a cable disposed in supporting relation on the anvil, and wherein the housing has a vertical slot therethrough facilitating insertion of a cutting tool having a cutting edge operative to shear a cable when the cutting tool is impacted by the mandrel.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: October 3, 1978
    Assignee: Belden Corporation
    Inventor: Wayne R. Medcraft
  • Patent number: 4116833
    Abstract: A method and apparatus for removing contaminants from the surface of water. An open-ended barricade is directed into and about a contaminant mass to channel the contaminant material to skimming apparatus which assists in collecting the material for recovery, storage and reuse. The process and apparatus is especially adaptable for use in naturally flowing bodies of water into which the apparatus is restrainably positioned to continuously and automatically remove the contaminant material. A scoop member, collection apparatus, and transporting circuit recovers the contaminant material for subsequent reuse while leaving the body of water free from contamination.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: September 26, 1978
    Assignee: Oil Spill Recovery, Inc.
    Inventors: Merlin D. Stagemeyer, Seth Ford Allcorn
  • Patent number: 4116160
    Abstract: Apparatus for coating particles with a substance contained in a reactant gas, the particles being suspended in a fluidized bed within a coating chamber, an elongated nozzle extending upwardly from the coating chamber base with an outlet for reactant gas being substantially above the base to direct the reactant gas into a dilute phase region of the particles. With the base of the chamber being an inverted conical member, coated particles are preferably removed from the chamber by means of a movable plug forming the apex of the conical member, the elongated nozzle preferably being mounted upon the unloading plug.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: September 26, 1978
    Assignee: General Atomic Company
    Inventors: John Randolph Langley, Michael H. Spritzer
  • Patent number: 4116007
    Abstract: A readily deployable barrier apron is used with contaminant recovery systems to encompass contaminant material or to channel such material to collection devices. An upper apron member which is impenetrable has a lower penetrable member attached. Deployment devices such as hinging segments or spooling rolls of such apron barrier are utilized with an uprighting construction to provide for a quickly deployable, ready to use, and easy to control barrier construction for such uses as the containment of oil spills.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: September 26, 1978
    Assignee: Oil Spill Recovery, Inc.
    Inventors: Merlin D. Stagemeyer, Seth Ford Allcorn
  • Patent number: 4117375
    Abstract: An exposure system is described employing a lamp and means for controlling the exposure time period during which light from the lamp at a preselected level is passed through a light path to an exposure plane. Light is detected in the light path and the brightness of the lamp is adjusted according to the sensed light to provide the preselected level of light output from the lamp during the exposure period. Also described is a method for operating such a system.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: September 26, 1978
    Assignee: Optical Associates, Incorporated
    Inventors: Gerald Bachur, George E. Richardson
  • Patent number: 4115025
    Abstract: A lead screw tapping unit is disclosed wherein a tap or thread forming die is mountable on a tool support spindle which is longitudinally movable with a nonrotatable quill. The spindle is rotatably driven by a reversible drive motor and has a lead screw carried thereon which cooperates with a lead nut to effect controlled inward feeding and withdrawal of the tap relative to a workpiece. The lead nut carries a cam bushing which is operative to actuate a safety switch and deenergize a drive motor to stop rotation of the spindle should the spindle and tap undergo a thrust overload condition, or if seizure occurs between the lead screw and lead nut.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: September 19, 1978
    Inventor: Robert J. Petroff
  • Patent number: 4112901
    Abstract: A fuel supply system supplies volatile fuel at a controlled rate to an air-fuel mixing chamber leading to a subatmospheric intake manifold of an internal combustion engine. Fuel is metered out by a metering gear pump supplied with fuel under pressure sufficient to maintain the fuel in its liquid state. An equalizer valve maintains the pressures on the two sides of the gear pump equal. This assures linearity of fuel rate as a function of pump speed. Pump speed is measured to provide a feedback signal to a controller. The controller compares the feedback with a control signal indicative of desired rate of fuel to develop driving power for application to the gear pump to drive the latter at the speed that supplies fuel at the desired rate.
    Type: Grant
    Filed: April 1, 1977
    Date of Patent: September 12, 1978
    Assignee: Autotronic Controls, Corp.
    Inventors: Leonard Lee Chapin, James Walter Merrick
  • Patent number: 4112945
    Abstract: A syringe device is disclosed which employs an operator cooperable with the plunger of a syringe cartridge to facilitate discharge of fluid from the syringe cartridge. Various embodiments of the operator each include a sleeve portion which progressively telescopes the barrel of the syringe cartridge to prevent its fracture and lend stability to the assembly during operation. The operators are cooperable with the syringe cartridge to selectively discharge one or more predetermined dosages from the syringe.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: September 12, 1978
    Assignee: Alcon Laboratories, Inc.
    Inventors: Michael L. Helixon, Barry S. Ward
  • Patent number: 4112738
    Abstract: A method and pycnometer apparatus are disclosed for accurately determining the volume of a condensed material sample. Equal free space volumes are established between a pair of gas filled chambers before and after insertion of a powder or solid sample within one of the chambers. The volume of the sample receiving chamber is increased to maintain equal free space volumes after the sample is inserted, the adjusted increase in volume providing a highly accurate determination of the volume of the sample. The apparatus may also be employed to determine the compressibility or the porosity of a material sample.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: September 12, 1978
    Assignee: Systems, Science and Software
    Inventor: Philip L. Turner
  • Patent number: 4112025
    Abstract: A method of and apparatus for transferring gas to liquid, for example, air to liquid in an aeration process. Included is a novel combination air-liquid conduit and a method of making same, a novel jet aerator wherein the outlet section is shortened to include only a converging portion, a novel aeration system utilizing the conduit and jet aerator aforesaid and a novel coupling means for mounting the aerator on the conduit.
    Type: Grant
    Filed: July 26, 1973
    Date of Patent: September 5, 1978
    Assignee: Houdaille Industries, Inc.
    Inventors: George E. Wilson, Milo E. Friesen, Albert J. Smith
  • Patent number: 4111439
    Abstract: A rotary seal seals a large, high temperature rotary drum, such as a rotary cement kiln, from the inflow of ambient air where the drum is mounted for rotation in respect to a stationary hood, the drum having a substantially circularly cylindrical surface at one open end thereof substantially coaxial with the axis of rotation of the drum, and the hood having an opening through which the cylindrical surface extends. The seal is made of a strip of flexible material for encircling the cylindrical surface, the flexible material being substantially air impermeable and resistant to heat and oxidation at temperatures at least up to 250.degree. F. The outer edge of the strip is sealed to the hood. A wear resistant liner is affixed to the underside of the inner edge of the strip to space the strip from the cylindrical surface. The side of the liner opposite the strip mates with the cylindrical surface and is biased thereagainst.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: September 5, 1978
    Assignee: Amcord, Inc.
    Inventor: John Kenneth Schmidt
  • Patent number: 4112288
    Abstract: An orifice tip for a plasma arc welding and cutting torch is described wherein the tip is comprised of an isotropic graphite of substantially uniform thermal conductivity and with a very small particle and pore size, thereby providing substantially superior operating life.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: September 5, 1978
    Assignee: General Atomic Company
    Inventors: William R. Pieren, Robert F. Stetson
  • Patent number: 4111146
    Abstract: A two-piece skirt is disclosed for supporting a tank in the hull of a ship. One skirt portion carries a trough, and the edge of the other skirt portion extends into the trough but is spaced from contact therewith. The trough is filled with a hardenable material, preferably of low thermoconductivity, which upon hardening structurally joins the two skirt portions. If the tank carries liquefied gas, the joint effectively thermally insulates it from the hull.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: September 5, 1978
    Assignee: General Dynamics Corporation
    Inventors: Robert A. Babcock, Rolf D. Glasfeld, Luther E. Holt
  • Patent number: 4112131
    Abstract: A continuous, in-line, method and apparatus for cooking process cheese products. Raw material, comprises a uniform blend of cheese with appropriate additives, for introducing into a pressurized cooking zone. Steam is injected directly into the raw material in a confined region to heat and melt the raw material into a molten mass. The molten cheese mass is delivered from the cooking zone to a mixing zone where the steam is mixed with the cheese and the temperature of the molten cheese mass is equilibrated. The molten cheese is delivered from the mixing zone to a low pressure cooling zone where deaeration and cooling of the molten mass is effected via a sharp reduction in pressure.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: September 5, 1978
    Assignee: Kraft, Inc.
    Inventors: George Bosy, Edwin N. Edwards, Willis M. Hoffbeck, Paul A. Silvio, Leonard A. Warwick
  • Patent number: 4112302
    Abstract: A gas monitor comprising means for detecting changes in electron flow between two electrodes caused by absorption of the electrons by an electron capture gas flowing between the electrodes. A carrier gas is supplied to the detecting means at a predetermined velocity. A sample of the gas to be measured is added to the carrier gas by a valve means at a predetermined time which gas sample contains a trace of a first type of electron capture gas. The carrier gas together with any gas sample flows through a column means which slows down the velocity of any other type of electron capture gas in the sample with respect to the velocity of the first type of electron capture gas. The gas then passes through the detector wherein the electron capture gas causes a decrease in the electron flow between the electrodes. Means are provided for measuring the maximum decrease in the electron flow caused by the first type of electron capture gas and means are coupled to the measuring means for indicating the maximum decrease.
    Type: Grant
    Filed: March 2, 1977
    Date of Patent: September 5, 1978
    Assignee: Systems, Science and Software
    Inventors: Brian S. Flanagan, Phillip L. Turner, Richard D. Broce, Peter L. Lagus
  • Patent number: 4111335
    Abstract: A metering system is described for metering quantities of particles, such as fissile, fertile and shim particles for nuclear fuel elements. Predetermined volume discharges from three particle reservoirs are collected and two of them are weighed in comparison with a predetermined standard. A small amount of particulate material is added to each of the two weighed containers dependent upon the difference between the weight of the volumetrically dispensed particles therein and the predetermined standard. All three intermediate containers are then discharged into a volumetric chamber which is then brought to a standard volume by the addition of further particles. The resultant charge in the volumetric chamber is comprised of a fixed volume in which the weight of particles from two of the three reservoirs is standardized.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: September 5, 1978
    Assignee: General Atomic Company
    Inventors: Satya Prakash Arya, Albert Stevens Ballard, Stephen James Foster
  • Patent number: 4111080
    Abstract: An applicator apparatus for securing belt fasteners to belt ends by staples comprises a staple guide block means having resiliently biased pin means for exerting a clamping force to hold the belt end against shifting during the driving of the staples through the belt and the clinching of the ends of the staples against the belt fasteners. The preferred applicator is formed to accommodate various widths of belts by releasably securing a series of separate applicator units each having a staple guide block and secured to a base plate in predetermined and aligned portions thereon. An adjustable cam lever allows shifting of the staple guide block means to accommodate different thicknesses of belts. A gauge pin is eliminated by having shoulder surfaces on the staple guide block means hold the belt fasteners with their hinge pin receiving ends in alignment with one another.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: September 5, 1978
    Assignee: Flexible Steel Lacing Company
    Inventor: Winston C. Pray