Patents by Inventor James D. King

James D. King has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5402713
    Abstract: A deep fat fryer is disclosed that employs an interior array of heat exchanger tubes arranged in a "U" configuration along the sides and back of the vat. The heat exchanger tubes are located in the interior of the vat with the ends attached to the front vat wall. Each heat exchanger tube employs one or more premix burner components which direct combusting fuel and oxygen into the heat exchanger tube from one end. Each heat exchanger tube may have its burners on either end of the tube. The combustion gases produced by the burners travel through the heat exchanger tubes and exit into a combustion channel. The combustion channel directs the gases exiting the heat exchanger tube around and in contact with at least a portion of the exterior wall of the vat and then to an exhaust flue at the rear of the vat.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: April 4, 1995
    Assignee: Henny Penny Corporation
    Inventor: James D. King
  • Patent number: 5402712
    Abstract: A motor driven assembly to assist in the raising and lowering of the lid of the vat of a large capacity pressure cooker. The assist assembly comprises a vertically oriented support frame secured to the rear of the pressure cooker housing. The support frame comprises a pair of vertical, inwardly opening, U-shaped guide rails joined together by top and bottom horizontal support frame members. The front, rear, sides and top of the support frame are enclosed by panel members completing the overall housing of the pressure cooker. A vertically oriented, frame-like carriage is mounted within the support frame. The carriage has rollers received within the support frame guide rails and is vertically shiftable within the support frame. The carriage mounts a pair of horizontal arms which extend through vertical slots in the pressure cooker housing and which support the vat lid. The top frame member of the support frame carries a drum which is driven by an electric motor.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: April 4, 1995
    Assignee: Henny Penny Corporation
    Inventors: James D. King, Stephen D. Werts
  • Patent number: 5122746
    Abstract: A method of using a transient NMR response signal to determine physical properties of gases, specifically calorific content and compressibility, while the gas is in-line. The amplitude of the free induction decay signal, as well as relaxation time constants, are used to identify components of a gas mixture and to determine relative composition. This data is then used to calculate calorific value and compressibility as a function of the hydrogen content of components of the gas rather than as a function of the total hydrogen content of the gas.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: June 16, 1992
    Assignee: Gas Research Institute
    Inventors: James D. King, William L. Rollwitz, Colin I. Nicholls, Armando De Los Santos
  • Patent number: 4997101
    Abstract: A single handle-actuated lid opening, closing, and locking mechanism for a large capacity pressure cooker having an open-top cooking vat and a counter-balanced lid shiftable vertically between a vat open and a vat closed position. The mechanism comprises a pair of slotted hook arms mounted to either side of the vat. A cam bar extends transversely of the vat lid and is provided with a forwardly extending arm near each of its ends. The forward ends of the arms are joined by a bar constituting a handle in parallel spaced relationship to the cam bar. The ends of the cam bar support rollers receivable within the slots of the hook arms. The cam bar is manually shiftable by the handle between a forward lid locking position and a rearward unlocking and lid engaging position. In its forward lid-locking position, the cam bar assumes an over-center orientation with its rollers bearing upwardly against the upper surfaces of the hook arm slots and the cam bar body bearing downwardly against the lid.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: March 5, 1991
    Assignee: Henny Penny Corporation
    Inventors: James D. King, Stephen D. Werts
  • Patent number: 4930408
    Abstract: A large capacity pressure cooker in which an open-topped vat having an upper cooking zone and a lower cool zone for collecting contaminants is provided with a counterbalanced vertically moveable lid, operator-actuatable locking means having a single operating handle being provided to lock the lid in a closed and sealed position, including latching mechanism for maintaining the lid locking mechanism in the closed position when the vat is pressurized, the latching mechanism additionally serving to depressurize the vat if the latching mechanism is accidentally released.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: June 5, 1990
    Assignee: Henny Penny Corporation
    Inventors: James D. King, Stephen D. Werts
  • Patent number: 4638251
    Abstract: In the preferred and illustrated embodiment, a method and apparatus for measuring the flow of non-homogeneous materials in an incompletely filled channel is set forth. In one embodiment, a NMR (or ESR) flow meter arrangement including a magnet forming the requisite magnetic field H.sub.o across a flow channel is incorporated. The magnet cooperates with a coil providing an NMR or ESR output signal from selected specie(s) or sub-atomic patricles (i.e. nuclei or unpaired electrons) in the material in the flow stream. It is desirable for the signal to be representative of the total amount of material in the flow stream. This signal may be in error, unable to sort out prospective combined variations due to (1) incomplete filling of the sensing volume or (2) a non-homogeneous composition of material. A composition sensor coil inscribing a very small volume in selected portions of the flow channel is included to form an NMR output signal indicative of composition, the small volume being filled for that sensor.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: January 20, 1987
    Assignee: Southwest Research Institute
    Inventor: James D. King
  • Patent number: 4629987
    Abstract: A method and apparatus are set forth for measuring flow velocity of an element of interest in a compound within a pipe. In the preferred and illustrated embodiment, a static magnetic field is imposed on the flowing material of interest. Preferably, a uniform field of finite width is imposed. There is a first coil around the path for imposing an RF magnetic field at right angles to the static magnetic field. There is a relationship between the flowing material including the element, frequency of the RF field and static magnetic field intensity which aligns nuclei or electrons of the element. There is a second (detection) coil spaced downstream from the first coil, the second coil also being around the pipe. By turning the first coil off or on, the NMR or EMR signal observed at the second coil can be made to change abruptly as the "tagged" element flows to the second coil. By measuring the time of travel of the element of interest evidenced by the second coil signal, the flow velocity can be measured.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: December 16, 1986
    Assignee: Southwest Research Institute
    Inventors: James D. King, Erroll S. Riewerts, William L. Rollwitz
  • Patent number: 4536711
    Abstract: This method and apparatus is directed to measuring flow velocity of a flowing solid or fluid in a pipe. In the preferred and illustrated embodiment, a single magnet is utilized to impress a magnetic field on the flow, the field having a gradient. A concentrically arranged detection coil is positioned in the field and is connected with a nuclear magnetic resonance (NMR) or electron magnetic resonance (EMR) detection apparatus. A segment of the material moves through the magnetic field. The frequency of a the magnetic resonance signal emitted by the nuclei or electron changes proportionate to field intensity. In a fixed gradient, the time rate of change of the emitted NMR or EMR frequency signal is a linear function of flow velocity. This apparatus provides a measure of flow velocity by interrogating with pulses thereby obtaining a frequency dependent signal.
    Type: Grant
    Filed: May 5, 1983
    Date of Patent: August 20, 1985
    Assignee: Southwest Research Institute
    Inventors: James D. King, Erroll S. Riewerts
  • Patent number: 4531093
    Abstract: A flow meter apparatus and method for measuring the flow, composition and heat content of coal is set forth. In the preferred and illustrated embodiment, the free or unpaired electron population of flowing coal is measured by electron magnetic resonance (EMR); the hydrogen nucleii population is measured by nuclear magnetic resonance (NMR). By calibration utilizing a standard specimen for a given type of coal, a profile for various types of coal can be obtained wherein measurement data is converted into an indication of the heat content typically measured in BTU per pound. This enables provision of a volumetric flow meter, a flow meter indicating flow in calorie content. This device enables integration to provide total heat content flow. Other variables describing the coal can be obtained.
    Type: Grant
    Filed: May 5, 1983
    Date of Patent: July 23, 1985
    Assignee: Southwest Research Institute
    Inventors: William L. Rollwitz, James D. King
  • Patent number: 4514691
    Abstract: This method and apparatus are directed to baggage inspection, and more particularly, baggage inspection to locate explosives. In the preferred and illustrated embodiment, a conveyor system is utilized to transport a bag past a first magnet to achieve an initial nuclear magnetic resonance (NMR) polarization of a selected element. The element in the preferred embodiment is hydrogen, it being noted that hydrogen in explosives has a long T.sub.1 and a short T.sub.2. The first magnet provides an initial polarization. The bag continues on the conveyor belt past a second magnet. The second magnet provides the measurement field intensity and a coil contains an interacting RF forming the interrogation pulses. Echos are received. In the preferred embodiment, first and subsequent second echos are received and stored. The two signals are subtracted from one another to a null. The NMR response of elemental hydrogen in compounds typified by explosives (having a long T.sub.1 and short T.sub.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: April 30, 1985
    Assignee: Southwest Research Institute
    Inventors: Armando De Los Santos, James D. King, William L. Rollwitz, George A. Matzkanin, Phillip A. Hornung
  • Patent number: 4446780
    Abstract: A food holding cabinet having a heating and air circulating system overlying the interior of the cabinet, the system including a blower having its inlet side connected to an air mixing chamber and its outlet side connected to an air heating chamber. The air mixing chamber has a first air inlet orifice at the front-top-center of the interior of the cabinet for recirculating air from within the cabinet and a second air inlet orifice in communication with the outside of the cabinet to introduce fresh air, the recirculated air and fresh air being admixed in the air mixing chamber and discharged into the heating chamber. From the heating chamber the air flows downwardly through a duct at the rear of the cabinet, the duct having rows of perforations aligned with the undersurfaces of product containing trays or baskets in the cabinet, the air being drawn through the cabinet for return to the mixing chamber.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: May 8, 1984
    Assignee: Henny Penny Corporation
    Inventors: Timothy J. Puvogel, James D. King, David O. Moore
  • Patent number: 4416630
    Abstract: A realistic audio-visual effects generator for simulating anti-tank and a-aircraft missile launching. A pyrotechnic cartridge having disc at one end that ruptures and allows the efflux of the products of combustion to exit through a hole in the breech block which is placed at the muzzle end of the firing chamber. Along with the simulated cartridge discharge is electrical circuitry for determining if the cartridge has been properly chambered.The circuitry acts to prohibit firing should it be determined that incorrect installation has occurred. Upon initiation of firing a conventional laser transmitter is actuated for simulating firing of the weapon.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: November 22, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James M. Hagen, James D. King
  • Patent number: 4408160
    Abstract: This disclosure is directed to an acoustic Barkhausen stress detector apparatus and a method of obtaining measurements of stress in or determination of the microstructure of ferromagnetic materials. In the preferred and illustrated embodiment, stress or microstructure information in a ferromagnetic specimen is tested and measured through application of a variable magnetic field. A sensitive acoustic detecting device including an input transducer(s) and amplifier(s) forms a signal based on Barkhausen acoustic phenomena which arise from a change in the magnetic field strength. Barkhausen acoustic information is in the form of vibrations produced within the material which occur as magnetic domain walls shift. The domain wall shifts occur at various locations within the material of interest, and the acoustic vibrations are propagated through the material and are observable at the surface by one or more transducers.
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: October 4, 1983
    Assignee: Southwest Research Institute
    Inventors: James D. King, Gary L. Burkhardt, John R. Barton, George A. Matzkanin
  • Patent number: 4311261
    Abstract: A combination fuel tank and carrying rack for a motor driven cycle with a rectangular tank having a fill pipe on the top with a cap and a gravity type fuel system. The top of the tank includes vertical side legs with slots and parallel rubrails to attach items for transporting. The tank further contains undercarriage arms and struts attaching directly to the motorcycle through fasteners provided thereon. Other embodiments include a travel trunk mounting channel attached rotatably to the side legs and a backrest with a cushion on the forward end.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: January 19, 1982
    Inventors: Gordon K. Anderson, James D. King
  • Patent number: 4296378
    Abstract: This disclosure is directed to improved equipment in detection of desired nuclei or electron response. In a magnetic field thought to be inhomogeneous, an improvement which incorporates means for summing repetitive samples is disclosed. Excitation is applied to the sample of interest, and the received signal is broken into samples over the life of the received signal and temporarily stored. The flux is varied by varying the magnet current, and several nuclear magnetic resonance signals are received. They are similarly sampled periodically and added to earlier responses. They are preferably stored in a buffer after conversion by an analog-to-digital convertor. After stepping through several magnetic levels, the testing is completed. The summation of the various signals is a signal enhancement technique which overcomes the lack of a uniform optimum field impressed on the sample of interest.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: October 20, 1981
    Assignee: Southwest Research Institute
    Inventor: James D. King
  • Patent number: 4237623
    Abstract: A food holding cabinet having a closed loop air circulating system to control both heat and humidity, the system including a blower having an air inlet at the front-top-center of the interior of the cabinet, the outlet of the blower being connected to an elongated heating tube the discharge end of which directs heated air over a water reservoir containing a plurality of upwardly projecting removable heat transfer plates. The quantity of moisture introduced into the flowing air is controlled by varying the number of heat transfer plates. The heated and humidified air flows downwardly through a duct at the rear of the cabinet, the duct having rows of perforations aligned with the undersides of product containing trays or baskets in the cabinet, the air being drawn through the cabinet for return to the blower inlet. Heat is controlled by a temperature controller having a probe mounted in the inlet to the blower.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: December 9, 1980
    Assignee: Henny Penny Corporation
    Inventors: Malvern K. Timm, James D. King, David O. Moore
  • Patent number: 4166972
    Abstract: A method and apparatus for enhanced nuclear magnetic resonance (NMR) discrimination and detection is disclosed. In the preferred embodiment, a sample which has a first atomic element is placed in a magnetic field of a first intensity. A reaction between the nuclei of the first atomic element and the electromagnetic field of the apparatus produces an NMR response which is tunable with field intensity. If the first atomic element of interest is present and intimately comingled with a second atomic element of interest, as might occur in compounds, and if the second element of interest has a nuclear quadrupolar moment and if the molecular structure conditions are proper for it to have a nuclear quadrupolar resonance (NQR), then adjustment of the magnetic field intensity varies the NMR frequency of the first element of interest to coincide with the NQR frequency of the second element of interest.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: September 4, 1979
    Assignee: Southwest Research Institute
    Inventors: James D. King, George A. Matzkanin, William L. Rollwitz
  • Patent number: D335732
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: May 18, 1993
    Assignee: Henny Penny Corporation
    Inventor: James D. King
  • Patent number: D336007
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: June 1, 1993
    Assignee: Henny Penny Corporation
    Inventors: James D. King, Stephen D. Werts
  • Patent number: D351966
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: November 1, 1994
    Inventor: James D. King