Patents Represented by Attorney Charles N. Quinn
  • Patent number: 4102620
    Abstract: Apparatus for forming rigid structures such as disk brake pads from a dry mix of friction material includes a compression molding press, a friction material agitator and an improved mechanism for transporting friction material from the agitator to the press with friction material preform forming apparatus between the agitator and the press defining an intermediate portion of the improved transport mechanism.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: July 25, 1978
    Assignee: Pennwalt Corporation
    Inventor: Edward Moneghan
  • Patent number: 4078702
    Abstract: This invention relates to automatic closures of the type in which finger pressure applied to a portion of the closure opens an aperture of a container to which the closure is attached thereby permitting dispensing of granular material from the container. Upon release of finger pressure, the closure self-closes, preventing accidental dispensing of material from the container.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: March 14, 1978
    Assignee: Pennwalt Corporation
    Inventor: David Warren Neff
  • Patent number: 4076057
    Abstract: Methods are provided for filling adsorber filter cells with particulate granular adsorbent material from above the filter cells. The methods produce a substantially uniform packing density of particulate material in the cells without the necessity of vibrating the cells.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: February 28, 1978
    Assignee: Pennwalt Corporation
    Inventors: Ivars Sigurds Spulgis, Jack Leland Pettit, Michael Duane Allard, Harold Cheney Parish
  • Patent number: 4075077
    Abstract: An electrolytic cell for production of alkali metal chlorates has pairs of spaced flat parallel perforate cathodes and has flat imperforate anodes resident within each pair of cathodes, with each cathode having a plurality of horizontal slots therethrough, within an electrically conductive tank. Electrically insulative chemically resistive bumpers on either side of each anode maintain the anode spaced from the pair of cathodes within which the anode resides. The cell bottom and two sides are formed of a single member; the cell top is electrically insulated from the remainder of the cell.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: February 21, 1978
    Assignee: Pennwalt Corporation
    Inventor: Jimmie Ray Hodges
  • Patent number: 4043886
    Abstract: A photochemical reactor and processes for irradiation of fluid reactants for production of products by radiation catalysis are provided. The reactor is particularly adapted for radiation catalysis of fluids which are substantially opaque to radiation and hence must be mixed thoroughly during irradiation for satisfactory radiation catalysis to occur. The processes are similarly particularly adapted for irradiation of substantially opaque fluids and provide thorough mixing of the fluid reactants.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: August 23, 1977
    Assignee: Pennwalt Corporation
    Inventors: George John Bierker, Arnold Kivnick
  • Patent number: 4032943
    Abstract: A dental x-ray film processor system, including a developer processor and a magazine, for the automatic development of one or a plurality of standard sized dental x-ray films. The films can be of any of the three sizes which are generally designated as standard sizes and sizes can be mixed. The individual films need not be placed in the magazine dispenser in a contiguous manner; they can be placed in the dispenser in an intermittent fashion. The x-ray film processor is disposed to accept films from the magazine, one at a time, and to sequentially process the films through a developer bath, a fixer bath, a rinse bath and to dry the individual films before dispensing them one-by-one.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: June 28, 1977
    Assignee: Pennwalt Corporation
    Inventor: Ernest Zwettler
  • Patent number: 4030639
    Abstract: Apparatus is provided for use in filling charcoal adsorber air filter cells by dispersing the particulate charcoal into the filter while the apparatus is disposed vertically above the filter. The apparatus is particularly adapted to produce an even packing density of particulate charcoal in the filled air filter without the necessity of vibrating the air filter once the charcoal has been allowed to fill the filter to the top. A method is provided for semi-automatically, pneumatically filling the apparatus and the charcoal adsorber air filter. Some embodiments of the apparatus are adapted for filling two or more charcoal adsorber air filters simultaneously.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: June 21, 1977
    Assignee: Pennwalt Corporation
    Inventors: Harold Cheney Parish, Michael Duane Allard, Jack Leland Pettit, Ivars Sigurds Spulgis
  • Patent number: 4003498
    Abstract: A novel method and an improved combination of apparatus are provided for controlled feeding of dry friction and other high bulk materials along a closed path, whereby release of dust particles of the friction or other high bulk material is substantially eliminated. The method and apparatus are particularly suited to feeding the dry material from a remote storage container along a closed path and into contact with a rotatable screw for at least partially plasticizing the dry material in preparation for compression molding thereof. Also provided is apparatus for molding rigid structures from dry friction material, having as a portion thereof the improved apparatus for feeding friction material.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: January 18, 1977
    Assignee: Pennwalt Corporation
    Inventor: Edward Moneghan
  • Patent number: 3972451
    Abstract: A closure apparatus is provided for optionally closing and opening a storage hopper portion of an adsorber filter fill system used for filling adsorber filter cells in a gas adsorber filter system. The closure apparatus is particularly adapted to have a portion thereof move with respect to a metering means of storage hopper of an adsorber filter fill system between first or open and second or closed positions, so as to optionally, selectably permit the opening and closing of the storage hopper. The closure apparatus provides a substantially air-tight seal at holes in the metering means of the adsorber filter fill system when the closure apparatus is at the closed position. The closure apparatus is designed so that its sliding operation and maintenance of substantially air-tight seals is not adversely affected by the presence of any granules of adsorbent which remain in the holes in the metering means or in the vicinity of the holes in the metering means once filling of the adsorber filter system is completed.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: August 3, 1976
    Assignee: CVI Corporation
    Inventors: Harold Cheney Parish, Michael Duane Allard, Jack Leland Pettit, Ivars Sigurds Spulgis
  • Patent number: 3964890
    Abstract: System includes a closed housing having a plurality of rectangularly configured beds with perforate sidewalls longitudinally disposed in housing in laterally spaced disposition with each other. Alternate spaces at inlet end are closed and alternate spaces opposite the open ends are closed at exit end whereby contaminated gas is laterally squeezed through the beds filled with particulate adsorbent. The lower portions of the beds funnel into longitudinally extending discharge chutes enclosed within respective wells, the lower edges of the chutes rising at a constant angle above the well floor. An evacuation system coupled to the wells suctions the pile of particulate from the most remote portion of the chutes first.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: June 22, 1976
    Assignee: CVI Corporation
    Inventor: John William Bonn
  • Patent number: 3964887
    Abstract: Standby gas treatment system for removal of radioactive release from a nuclear containment structure not only during normal purge operations but also in the event of a design basis accident. Ventiduct trains arranged in parallel so that one is redundant are each operative to extract dust in excess of 0.3 microns and adsorb radioactive iodine and compounds thereof at 99.9% plus efficiency. A rechargeable gasketless charcoal filter in each train can be filled or emptied without removing the filter enclosures per se. Laminar flow filter beds entirely encapsulate the gas stream to provide low gas velocity and even distribution across the charcoal cage without channeling, thereby securing long residence time.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: June 22, 1976
    Assignee: CVI Corporation
    Inventors: Thomas Nelson Hickey, Ivars Sigurds Spulgis
  • Patent number: 3956682
    Abstract: A two-wire transmitter for converting a motion input into a D.C. milliampere output signal that varies linearly with the angular rotation of a mechanical arm. The transmitter employs a position balance principle accomplished by reflecting a light beam from a light emitting diode against a mirror of a D'Arsonval movement upon a dual element photocell. Movement of the input arm displaces the light beam to unbalance a bridge circuit, the increase voltage thereof increasing the current in an output loop which is fed back through the D'Arsonval motor coil. Rotation of the coil rotates the mirror to swing the light beam toward the center of the photocell and rebalance the system to meet new input conditions.
    Type: Grant
    Filed: March 28, 1974
    Date of Patent: May 11, 1976
    Assignee: Pennwalt Corporation
    Inventor: Donald Edwin Van Dyck
  • Patent number: 3954591
    Abstract: An apparatus is provided for use as a suspension device for suspending one or more anodes and one or more reference cells inside metallic water tanks as a portion of a cathodic protection system for the water tank for the inhibition of corrosion in the tank. The apparatus is particularly adapted for use in the northern reaches of the earth's temperate zones, where ice forms in outdoor water tanks during the winter season. The apparatus is designed to maintain the anodes and reference cells suspended therefrom in the liquid portion of the water tank as ice forms at the top of the water, the bottom of the water and at the sides of the tank and to allow the anodes and reference cells to retain the ability to perform their function despite the ice.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: May 4, 1976
    Assignee: Pennwalt Corporation
    Inventor: William C. Conkling
  • Patent number: 3931737
    Abstract: A flow transmitter for monitoring pulsating liquid flow rates, such as intermittent or cyclic impulsion produced by reciprocating pumps, employs a short stroke, variable area flowmeter having an armature core mounted in the flowmeter stem. As the stem rises and falls with flow, the armature moves within a linear variable differential transformer coil to produce an A. C. voltage following core deflection. This A. C. deflection signal is converted to a milliampere D. C. signal by means of a demodulator which through a long-time constant RC filter network averages the pulsed flow variations to provide a continuous non-inferential measurement proportional to flow.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: January 13, 1976
    Assignee: Pennwalt Corporation
    Inventors: William Collins Conkling, Joseph Thomas Weber, Jr.
  • Patent number: RE28965
    Abstract: .Iadd.Apparatus for method of vacuum freeze-drying frozen granular material in spaced, substantially vertical product beds is provided by vertical cell units designed for this purpose. Sublimed water vapors are conveyed from the product beds to the condensing area by open spaces between said product beds. The open spaces contain heating means for supplying heat of sublimation to the frozen material within the product beds..Iaddend.
    Type: Grant
    Filed: February 29, 1968
    Date of Patent: September 21, 1976
    Assignee: Pennwalt Corporation
    Inventor: William H. Hamilton