Search Patents
  • Configurable space launch system
    Patent number: 6360994
    Abstract: A configurable space launch system of multiple different vehicle configurations that use a common reusable spaceplane and cost effective external tanks is presented. Each vehicle configuration in the system incorporates one or more reusable spaceplanes and most or all ascent propellant in multiple releasable external tanks. The flight trajectory of each vehicle has multiple in-flight staging points to increase vehicle performance efficiency. The system is governed and configured by a unique set of eight prescripts that together minimize launch costs.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 26, 2002
    Assignee: Don A. Hart & Associates, Inc.
    Inventors: Don A. Hart, David W. Geyer
  • Thermodilution injector
    Patent number: 4212298
    Abstract: A thermodilution injector is presented in which a pneumatically powered piston operates the plunger of a syringe to deliver a measured amount of injectate in an accurately predetermined time period.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: July 15, 1980
    Assignee: Hart Associates, Inc.
    Inventor: Walter A. Gezari
  • Reciprocating infusion pump and directional adapter set for use therewith
    Patent number: 4065230
    Abstract: A reciprocating infusion pump is presented having a pair of syringes activated by individual actuating cylinders. The actuating cylinders are interconnected with a hydraulic fluid, and the cylinders and alternately pneumatically actuated whereby the cylinders alternately act as drive and follower cylinders whereby one syringe delivers fluid to a patient while the other is refilled from a reservoir. A directional adapter set is affirmatively actuated in synchronism with the actuating cylinders to control the direction of fluid flow from the reservoir to the syringes and from the syringes to the patient.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: December 27, 1977
    Assignee: Hart Associates, Inc.
    Inventor: Walter A. Gezari
  • Skived foam article containing energy absorbing phase change material
    Patent number: 5955188
    Abstract: A composition for saturation of preformed, previously cured foam substrates having an at least partially open cell configuration, includes a polymer binder in which microspheres containing a phase change material are dispersed. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. A preferred cured foam substrate is a skived polyurethane or polyether foam of from 20 to 1000 mils in thickness, preferably 20 to 200 mils in thickness, having up to 6 ounces per square yard or more of encapsulated phase change material embedded in a polymer binder. One method of applying the binder with dispersed encapsulated phase change materials is by applying a binder/microsphere dispersion to the upper surface of a previously cured foam sheet with, then drawing a vacuum from the underside of the cured foam sheet to permeate from 20% to 100% of the cured foam sheet with the binder/microsphere dispersion. The resulting product is then cured.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: September 21, 1999
    Assignees: Outlast Technologies, Inc., R.H. Wyner Associates, Inc.
    Inventor: Robert J. Pushaw
  • Skived foam article containing energy absorbing phase change material
    Patent number: 5851338
    Abstract: A composition for saturation of preformed, previously cured foam substrates having an at least partially open cell configuration, includes a polymer binder in which microspheres containing a phase change material are dispersed. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. A preferred cured foam substrate is a skived polyurethane or polyether foam of from 20 to 1000 mils in thickness, preferably 20 to 200 mils in thickness, having up to 6 ounces per square yard or more of encapsulated phase change material embedded in a polymer binder. One method of applying the binder with dispersed encapsulated phase change materials is by applying a binder/microsphere dispersion to the upper surface of a previously cured foam sheet with, then drawing a vacuum from the underside of the cured foam sheet to permeate from 20% to 100% of the cured foam sheet with the binder/microsphere dispersion. The resulting product is then cured.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: December 22, 1998
    Assignees: Outlast Technologies, Inc., R.H. Wyner Associates, Inc.
    Inventor: Robert J. Pushaw
  • Spring top and laundry bag
    Patent number: 3977450
    Abstract: A laundry bag with a stay open spring top adapted to accommodate fitting the bag into any size hamper.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: August 31, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Virginia Schampier
  • Electrochemical system
    Patent number: 4237197
    Abstract: An electrochemical system comprising a housing containing at least two electrodes, a reservoir having flexible walls, conduit means connecting said housing and said reservoir, and means to circulate electrolyte between said housing and said reservoir is disclosed.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: December 2, 1980
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Catalytically increasing the obtainable concentration of halogen in water
    Patent number: 4337237
    Abstract: When halogen is bubbled into a body of water in the presence of catalysts of graphitized carbon, ruthenised titanium, platinised titanium or mixtures thereof, hydrohalic acid is formed at higher concentrations than obtained by water by itself.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: June 29, 1982
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Leak detection system
    Patent number: 5258050
    Abstract: A method of separating a lighter gas from heavier gases. A series of pumps is used. A gas to be separated out from a mixture of gases is introduced at an exhaust port of one of the pumps, with the lighter gas among them traveling upstream into a container.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: November 2, 1993
    Assignee: Danielson Associates, Inc.
    Inventor: Philip Danielson
  • Transference and purification of halogen and hydrohalic acid in an electrochemical system
    Patent number: 4320179
    Abstract: Halogen and hydrohalic acid are transferred and purified in an auxiliary electrochemical cell divided into two compartments by a permselective membrane, one compartment containing a low chlorine oxidation overvoltage electrode and the other compartment containing a low chlorine reduction overvoltage electrode.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: March 16, 1982
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Method of forming hydrogen
    Patent number: 4182662
    Abstract: A method of forming hydrogen by electrolysis in a cell containing a hydrohalic acid produced from a reaction process using carbon particles as an input energy source wherein the acid for electrolysis is produced by reacting the electrolysis separated halogen with water and carbon particles in a reaction area communicated with the electrolysis cell. The reaction can also be made in the presence of a catalyst.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: January 8, 1980
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Method of forming hydrogen
    Patent number: 4288301
    Abstract: A method of forming hydrogen by electrolysis in a cell containing a hydrohalic acid produced from a reaction process using carbon particles as an input energy source wherein the acid for electrolysis is produced by reacting the electrolysis separated halogen with water and carbon particles in a reaction area communicated with the electrolysis cell. The reaction can also be made in the presence of a catalyst.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: September 8, 1981
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Filter cartridge
    Patent number: 5207812
    Abstract: A pleated filter cartridge for removing particles or dust from a gas stream is described. The cartridge is made of a perforated support tube, a pleated filter medium around said tube, and end caps into which the ends of the filter medium, and the tube are sealed, wherein the pleated filter medium has less than seven pleats per inch.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: May 4, 1993
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Gregory S. Tronto, Raymond Wnenchak
  • Method of storing electrical energy
    Patent number: 4251568
    Abstract: A method for the useful storage of electrical energy is described in which an electrochemical cell employing a halide electrolyte and an ungraphitized carbon positive electrode is charged at a voltage substantially below the conventional decomposition voltage required to produce free halogen from the selected electrolyte. An unidentified chemical complex is formed and stored at the positive electrode, and the positive electrode may thereafter be employed as an electrical energy source in a primary or secondary battery.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: February 17, 1981
    Assignee: Energy Development Associates, Inc.
    Inventor: Thomas G. Hart
  • Coupon holder
    Patent number: 4004690
    Abstract: A coupon holder is disclosed for classifying coupons and presenting coupons readily for manual dispensing comprising a flexible member folded into panels along a vertical line, the panels being on either side of the line. Transparent flexible pockets are placed on the panels in a stepped relation to one another, the pockets also having openings along the vertical edge thereof facing in a direction toward the vertical line that the flexible member is folded on so that when the coupon holder is folded in a closed position, such openings in the pockets are also closed.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: January 25, 1977
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Ninfa R. Giarritta
  • Apparatus for hot degassing residual olefin oxide from sterilized product
    Patent number: 4549363
    Abstract: A cell for degassing of residual olefin oxide from an olefin oxide sterilized product. The product is fed through the cell on a gravity conveyor using a combination of heat, retention time and air change rate optimized for a particular product. A pallet containing the product to be degassed rolls to a preselected position within the cell. The pre-selected position is established by automatically controlled stops appropriately located on the gravity conveyors. The cell is dedicated to a specific sterilizer product load and can be arranged in a modular fashion with a minimum internal volume.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: October 29, 1985
    Assignee: Buonicore-Cashman Associates, Inc.
    Inventor: Anthony J. Buonicore
  • Apparatus for thermal treatment of semiconductor wafers by gas conduction incorporating peripheral gas inlet
    Patent number: 4512391
    Abstract: An apparatus for the uniform thermal treatment of semiconductor wafers by gas conduction holds the wafer in place over a gas filled cavity in opposition to a thermal mass maintained at an appropriate temperature. Gas is introduced behind the semiconductor wafer adjacent its periphery to produce a near-constant gas pressure across the backside of the wafer. The constant pressure produces constant thermal conductivity. Consequently, heat conduction is uniform, the temperature of the wafer is uniform and uniform processing is accomplished across the wafer.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: April 23, 1985
    Assignee: Varian Associates, Inc.
    Inventor: David J. Harra
  • Method and apparatus for remediating organic loading of marine sediments
    Patent number: 8920073
    Abstract: An apparatus comprises at least one cutting jet configured to inject a fluid into a first layer of soil below a surface layer of underwater soil in a first region. At least one soil extractor is configured to remove at least a portion of the injected fluid and a portion of the first layer of soil in the first region. A mixing manifold is provided for mixing the removed portion of the injected fluid and the removed portion of the first layer of soil. A discharge is provided for depositing the mixed fluid and soil over the surface layer of underwater soil.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: December 30, 2014
    Assignee: Continental Shelf Associates, Inc.
    Inventors: Kevin Peterson, Alan Hart, James Adamson
  • Low-pass step attenuator
    Patent number: 8150004
    Abstract: A filter circuit is constructed as a triplex filter having a high-pass filter, a low-pass filter with attenuation in the passband, and a second low-pass filter without attenuation in the passband. The filter circuit has a frequency response with a high-pass portion, a flat loss portion, and a low-pass portion. Attenuation in the flat loss portion is uniform and is predetermined via selection of filter components. The filter circuit is useful in a bidirectional CATV system in which performance is improved by selectable attenuation of a first source of return path signals but without attenuation of a second source of return path signals.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: April 3, 2012
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Ray Palinkas, Ahmet Burak Olcen, Tom Hart
  • Band-stop filters
    Patent number: 7821359
    Abstract: Multiple tank elements disposed along a common axis and multiple conductive pads disposed along opposing sides of the tank elements define a serpentine transmission path. The tank elements, each having a capacitor and an inductor in parallel communication, define respective portions of the serpentine transmission path that cross the common axis. In a circuit element having multiple tank elements defining a transmission path in which each tank element is preceded or followed by a next neighbor tank element, inductors of next neighbor tank elements are structured to generate directionally opposing magnetic fields upon passage of electrical current progressing along the transmission path.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: October 26, 2010
    Assignee: John Messalingua Associates, Inc.
    Inventor: Thomas Richard Hart
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