Patents Assigned to Abex Corporation
  • Foundry practices
    Patent number: 4424853
    Abstract: A base metal or alloy in the molten state is further alloyed with readily oxidizable elements in an alloying chamber containing a non-oxidizing protective atmosphere, whereupon a plugged hole in the alloying chamber is opened to allow the alloy to flow into a mold cavity also previously filled with a non-oxidizing atmosphere; consequently, the easily oxidized alloy is cast in the absence of atmospheric oxygen.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: January 10, 1984
    Assignee: Abex Corporation
    Inventors: Igor Y. Khandros, Bruce A. Heyer
  • Austenitic-manganese steel
    Patent number: 4425169
    Abstract: Fine grained austenite achieved in (12%) manganese steel, without annealing, by a novel combination of carbon and aluminum.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: January 10, 1984
    Assignee: Abex Corporation
    Inventors: Dilip K. Subramanyam, Henry J. Chapin, Bruce A. Heyer
  • Flush mountable door latch mechanism
    Patent number: 4420954
    Abstract: A paddle handle actuated latch mechanism has the paddle handle pivotally mounted within a recess formed in a rectangular tray. A bolt is mounted in a housing attached to the back of the tray. A slide bar mounted in the bolt housing is connected to the bolt and has a portion which projects through an opening in the tray and is engaged by the handle when the handle is actuated. The lock bar is connected to the bolt such that when the paddle handle is moved from a stored position to an operated position, the slide bar moves from a locked position to an unlocked position which moves the bolt from an extended position to a retracted position.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: December 20, 1983
    Assignee: Abex Corporation
    Inventors: Gabriel C. Hieronymi, Randall C. Hansen
  • Vertical descent rate detector switch
    Patent number: 4414518
    Abstract: A vertical descent rate detector switch has a pair of contacts which are magnetically actuated when the rate of vertical descent of the switch exceeds a set amount.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: November 8, 1983
    Assignee: Abex Corporation
    Inventor: Aaron V. Farr
  • Metal founding
    Patent number: 4411305
    Abstract: Metal founding in a glass-ceramic mold which is reusable.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: October 25, 1983
    Assignee: Abex Corporation
    Inventor: Robert H. Beetle
  • Spike drivers
    Patent number: 4409902
    Abstract: A pair of air-operated hammers for driving railroad spikes are guided by separate yokes, raised and lowered by trunnion-mounted cylinders; a cross frame in a vertical plane is supported between the hammers and clamps join upright guides to the crossframe, the clamps enabling the hammers to be laterally adjusted on a main frame.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: October 18, 1983
    Assignee: Abex Corporation
    Inventor: Earl E. Frank
  • Proximity sensing head
    Patent number: 4408159
    Abstract: A proximity sensor includes a housing having one compartment which houses the components of an oscillator control circuit and another compartment which houses a sensing head including a ferrite core and oscillator coil assembly. An end cap closes the open end of the sensing head compartment. A fluid passage is provided in the end cap which permits fluid to flow around the oscillator coil assembly. A relatively thick seal assembly is interposed between the one compartment and the oscillator coil assembly to prevent the passage of fluid into the one compartment.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: October 4, 1983
    Assignee: Abex Corporation
    Inventor: Rolf Prox
  • Sintered powder metal friction material
    Patent number: 4391641
    Abstract: An iron-base, sintered powder metal friction material suitable for railroad braking is disclosed. The friction material comprises, by volume, 10-70% carbon; 0-2.5% sulfur; 0-10% alumina; 1-45% of a metal powder additive selected from the group consisting of copper, manganese, ferrochrome, chrome carbide compounds and mixtures thereof; and the balance iron. In preferred embodiments, the powder metal additives are 11-25% copper, or 9-15% manganese, or 5-20% ferrochrome.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: July 5, 1983
    Assignee: Abex Corporation
    Inventor: Herbert W. Lloyd
  • Railroad car wheel gauge
    Patent number: 4386469
    Abstract: A device for measuring and reading out the variation in the distance between the axle bore and the tread of a railroad car wheel at different angular positions on the wheel.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: June 7, 1983
    Assignee: Abex Corporation
    Inventor: Irving Lapsker
  • Roof support for a railroad car roof
    Patent number: 4385563
    Abstract: A roof support for a partitioned, covered hopper railway car having a longitudinal roof hatch which supports the roof between the end partition and an end wall without interfering with the hatch opening and transfers a portion of the roof load to the side walls of the car.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: May 31, 1983
    Assignee: Abex Corporation
    Inventors: Edward A. Bell, William E. Solt
  • Destroking start valve for variable displacement pump
    Patent number: 4381176
    Abstract: A destroking device for use with a variable displacement hydraulic pump driven by an electric motor, which device automatically reduces the displacement of the pump during start-up of the motor to a value which will ensure that the motor will accelerate to its rated speed and automatically relinquishes control of the pump when the motor reaches its rated running speed.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: April 26, 1983
    Assignee: Abex Corporation
    Inventors: Herbert H. Kouns, Richard A. Clark
  • Method of centrifugally casting a metal tube
    Patent number: 4377196
    Abstract: A centrifugal casting high in an easily oxidized element achieved by casting a high melting point metal on to an easily oxidized metal of lower melting point. The desirable distribution of the oxidizable element through the cross section of a casting is achieved relying on the basic effect of centrifugal separation.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: March 22, 1983
    Assignee: Abex Corporation
    Inventor: Igor Y. Khandros
  • Analog/digital drive speed control circuit
    Patent number: 4375609
    Abstract: A speed control circuit has a comparator which compares a voltage signal which is indicative of the actual speed of a shaft with a digital reference which is indicative of the desired speed of the shaft. If the actual speed is different than the desired shaft speed, a bi-directional control mechanism is operated in one direction or the other to adjust the actual speed of the shaft. The operation of the bi-directional control mechanism is periodically interrupted to increment the amount the actual shaft speed is changed to prevent overshoot of the desired speed.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: March 1, 1983
    Assignee: Abex Corporation
    Inventor: Robert F. Wolf
  • Vane control for a vane motor
    Patent number: 4374632
    Abstract: A vane motor which uses two-lip vanes has a fluid restrictor in a fluid passage which connects the inner and outer ends of each vane. High pressure fluid is supplied to the inner end of each vane as it traverses the transfer and sealing zone. This fluid flows through the fluid passage to the outer end of the vane to pressure balance the vane. In the event the outer end of a vane is separated from the cam ring the high pressure fluid at the outer end of the vane flows to the low pressure area and a pressure drop is created across the restrictor which results in a force which biases the vane towards the cam ring.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: February 22, 1983
    Assignee: Abex Corporation
    Inventor: Jack W. Wilcox
  • Railroad frogs
    Patent number: 4362282
    Abstract: Railbound frogs for track work installation and so constructed as to strengthen the heel extension, to resist movement of the running rails away from the heel end of the frog and to prevent damage due to what is known as a "false flange" on the car wheel.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: December 7, 1982
    Assignee: Abex Corporation
    Inventor: Earl E. Frank
  • Bridge positioning device
    Patent number: 4358721
    Abstract: A control for the motor of a mechanism which adjusts the position of the distal end of a passenger loading bridge, which control, when actuated, causes the motor to operate and the adjustment mechanism to move the end of the bridge to a preset position.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: November 9, 1982
    Assignee: Abex Corporation
    Inventor: Aaron V. Farr
  • Centrifugal casting
    Patent number: 4357394
    Abstract: A centrifugal casting of tubular form exhibiting an outer layer of a heavy (high density) metal having a high melting point, an inner layer of a lighter (low density) lower melting point metal and an intermediate zone where the two metals vary continuously and oppositely as to concentration from the inner layer to the outer layer; in the case of a tube these layers are the inner diameter (I.D.) and the outer diameter (O.D.).
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: November 2, 1982
    Assignee: Abex Corporation
    Inventor: Igor Y. Khandros
  • Foundry molds
    Patent number: 4346751
    Abstract: Hand patching of recesses in the side walls of a sand mold, intended to receive a core, is avoided by filling the recess, after the core is emplaced with a complemental pre-molded cover.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: August 31, 1982
    Assignee: Abex Corporation
    Inventor: Earl E. Frank
  • Rail lubricator
    Patent number: 4346785
    Abstract: A rail lubricator system for applying lubricant to the flange of a railroad car wheel riding on the head of a rail. The system has a lubricant reservoir with pumps therein for supplying lubricant to a delivery assembly attached to a rail. The pumps are mounted on a support which is connected to the reservoir cover. The lubricant delivery assembly clamps to a rail without the need for bolts or bolt holes extending through the rail web.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 31, 1982
    Assignee: Abex Corporation
    Inventor: Earl E. Frank
  • Wheelchair lift
    Patent number: 4345669
    Abstract: A lift for moving a wheelchair over a stairway includes a ramp, a wheelchair supporting platform and a mechanism for operating the platform over the ramp. When the lift is inoperative, the wheelchair supporting platform can be removed from the ramp and the ramp can be stored such that it does not intrude into the stairway and the operating mechanism is inaccessible.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: August 24, 1982
    Assignee: Abex Corporation
    Inventor: Kenneth L. Noall