Patents Assigned to Valcor Engineering
  • Patent number: 9623369
    Abstract: A hollow fiber fluid separation device includes a hollow fiber cartridge, comprising a plurality of hollow fiber membranes arranged around a central tubular core, a first tubesheet and a second tubesheet encapsulating respective distal ends of the hollow fiber bundle. The tubesheets have boreholes in fluid communication with bores of the hollow fiber membrane. In at least one of the tubesheets, the boreholes are formed radially and are in communication with the central tubular core. The hollow fiber fluid separation device can be utilized in liquid separation applications such as ultrafiltration and in gas separation processes such as air separation. The design disclosed herein is light weight and compact and is particularly advantageous at high operating temperatures when the pressure of the feed fluid introduced into the bores of hollow fibers is higher than the pressure on the shell side of the device.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 18, 2017
    Assignees: POROGEN CORPORATION, VALCOR ENGINEERING CORPORATION
    Inventors: Benjamin Bikson, Stephen Etter, Nathaniel Ching
  • Patent number: 7077158
    Abstract: A valve assembly includes a valve body configured to define a chamber forming a primary flowpath between an inlet port and a discharge port, an isolator disposed inside said chamber, and a poppet having a bore. The isolator is defined by a skirt and a stem, with the stem coupled to the valve body, and the skirt affixed to the stem. The poppet is disposed inside the chamber, and the bore is slidably received over the skirt. The isolator is configured to guide the poppet relative to the valve body, and the skirt is configured to shield the bore and isolate the poppet from substantially all of a dynamic pressure component of pressurized fluid when pressurized fluid flows from the inlet port past a portion of the poppet and then through the discharge port of the valve assembly.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: July 18, 2006
    Assignee: Valcor Engineering Corporation
    Inventor: Yuri Vladimirovich Gerasimov
  • Patent number: 5739605
    Abstract: A bi-stable clutch is introduced comprising an input and output shaft, a hub assembly attached to output shaft, a hub assembly attached to output shaft and operatively associated with a friction ring which rotates with output shaft of the unique bi-stable clutch. The input shaft is connected to a rotor which drives an armature plate to which the rotor is rotatably attached. The rotor and armature plate are forced apart when the clutch is engaged creating an air gap between the two large enough to not be overcome by the permanent magnet field attracting the armature plate due to a force caused by compression coil springs and the armature plate remains in contact with the rotor and the clutch remains engaged without continuous current transmitting torque from the input to the output shaft.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: April 14, 1998
    Assignee: Electroid Co.,A Division of Valcor Engineering Corp.
    Inventor: Edward D. Lazorchak
  • Patent number: 5638868
    Abstract: An improved hydraulic accumulator is introduced wherein a valve mechanism is used to seal a hydraulic fluid before the pressure charged piston reaches the end of the accumulator to minimize the loss of compressed gas by eliminating the pressure differential when the piston is fully extended, thereby prolonging the fatigue life of the accumulator vessel. Reduction of the pressure loading on the vessel will also prolong the life of the piston seals and metal bellows effectively extending the accumulator life and effectively allowing design for weight reduction and preservation of the integrity of the complete hydraulic or pneumatic system.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: June 17, 1997
    Assignee: Valcor Engineering
    Inventor: Haim Loran
  • Patent number: 5529387
    Abstract: A solenoid actuated valve of an in-line construction having an inlet and outlet between which are located the valve's operating components including a piston with a hollow head which engages a seat for sealing the valve's main flow path. The piston head has a discharging orifice which is sealed by the pilot pin of a solenoid operated popper and a charging orifice through which high pressure fluid from the valve inlet is supplied. The poppet has flow passages downstream of the piston seat which communicate with the valve outlet.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: June 25, 1996
    Assignee: Valcor Engineering Corporation
    Inventor: Waldemar Mialkowski
  • Patent number: 4624441
    Abstract: A pilot-operated valve suitable for pontoon inflation arrangements contains a main valve poppet urged against a valve seat connecting the inlet and outlet ports of the valve. A portion of the inlet pressure urges a piston carrying the valve poppet away from the valve seat, but this is resisted by a portion of the inlet pressure acting in a pressure volume on the opposite side of the piston. By way of an electrical signal, a manual operation or pneumatic pressure, a pilot valve is opened so as to relieve the pressure on the main valve poppet tending to close it. This allows the valve to open and fluid to pass through the valve assembly. Once the pilot valve has opened pressure from the inlet is applied within the pilot valve to hold it in the open position until the inlet pressure has been substantially reduced. Operation of the pilot valve also allows inlet pressure to be applied to a crossover connection of the valve.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: November 25, 1986
    Assignee: Valcor Engineering Corporation
    Inventors: Morton A. Kreitchman, Kurt Arnold
  • Patent number: 4561468
    Abstract: A valve is formed with a valve chamber and with an entrance port, a first exit port and a relief exit port each of which communicates with the chamber. A valve member is movably mounted within the chamber, and a pair of valve seats is mounted within the chamber for cooperation with the valve member, one of the seats being movable. The valve member and movable seat are biased in such a manner that the valve is normally seated with respect to both seats. When fluid in the entrance port exceeds a certain crack pressure, the movable seat moves away from the valve member and the fluid flows out the relief exit port. To stop flow out the relief exit port without creating a pressure surge, the valve member, actuated by a control, seats against the movable seat and at the same time moves away from the other seat so that the fluid continues to circulate through the first-named exit port.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: December 31, 1985
    Assignee: Valcor Engineering Corporation
    Inventors: Morton A. Kreitchman, Kurt Arnold
  • Patent number: 4102492
    Abstract: Apparatus for selectively enabling and disabling a process depending on the instantaneous value of a measurement made during the process in accordance with a predetermined program recorded by shading adjacent segments on an area of a record means the length of which is an analog of the total range of the measurement with each of the segments representing an interval of the measurement during which the process is to be enabled or disabled. A plurality of memory cores in one to one correspondence with subsegments of the measurement range analog are caused during programming to occupy one of two bistable states in response to a light sensor responsive to the light originating from an incident source and reflected by the program record. After programming, the memory cores are interrogated in accordance with the instantaneous value of measurement and a process control switch is set to a state corresponding to the state of the last interrogated memory core.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: July 25, 1978
    Assignee: Valcor Engineering Corp.
    Inventors: Joseph Gold, Frank Farese
  • Patent number: 4004258
    Abstract: A position indicating pulse latching solenoid has a plunger of paramagnetic steel, movable between two stops of similar material, and fixed permanent magnets which impart a flux to the plunger causing it to adhere to the stop to which it is moved, movement being accomplished by a respective winding about each stop which when excited by an electrical pulse momentarily exerts an attractive force on the plunger. A reed switch senses the momentary flux generated by the excited winding at a leakage gap near one of the stops and also determines whether the flux imparted to the plunger by the permanent magnets has shifted with the plunger to or away from the gap to indicate plunger position.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: January 18, 1977
    Assignee: Valcor Engineering Corporation
    Inventor: Kurt Arnold
  • Patent number: 3969923
    Abstract: A detector for sensing and signalling leakage in a closed fluid system, the detector having inlet and outlet passages connected by parallel main and secondary channels. The main channel is provided with normally closed sealing means to prevent communication between the inlet and outlet passages, and the secondary channel is provided with an element that moves in response to a pressure differential across the secondary channel. The main channel sealing means opens in response to a threshold differential pressure between the inlet and outlet passages, the threshold for the main channel being high to allow flow only when fluid is intentionally passed through the detector. The threshold for the secondary channel is low to permit movement upon pressure differentials caused by leaks, the secondary channel movable means having magnetic flux associated with it to actuate reed switch when this means is moved by a pressure differential across the secondary channel.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: July 20, 1976
    Assignee: Valcor Engineering Corporation
    Inventor: Jack M. Howell