Patents Examined by H. Burks, Sr.
  • Patent number: 3972193
    Abstract: A vapor generating system for use in a power plant having a steam turbine and a condenser connected in a series flow relationship, in which a vapor generating section receives a heat exchange fluid and passes the fluid in a heat exchange relation to a source of heat to raise the temperature and pressure of the fluid to predetermined values. The vapor generating section operates at substantially constant pressure during start-up and a pressure reducing station is provided for reducing the pressure of the fluid before it is passed to a plurality of separators in the main flow path for receiving the fluid and separating the fluid into a liquid and a vapor. The separators are connected to a vapor circuit and to a liquid circuit for passing the vapor and liquid to the turbine and condenser, respectively. A method of starting up a vapor generating system in a power plant.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: August 3, 1976
    Assignee: Foster Wheeler Energy Corporation
    Inventors: William D. Stevens, Walter P. Gorzegno
  • Patent number: 3969891
    Abstract: A substantial part of the superheating surface is shifted out of the pressure vessel and into the flow of exhaust gases from the gas turbine in order to reduce the size of the pressure vessel. The superheating surface outside the pressure vessel is located in the same housing as the feedwater preheating surfaces and can be bypassed by a suitable by-pass line. A supplementary burner can also be positioned in the gas turbine exhaust flow upstream of the displaced superheating surface.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: July 20, 1976
    Assignee: Sulzer Brothers Limited
    Inventor: Emile Aguet
  • Patent number: 3969898
    Abstract: A cover for a retention chamber in a master cylinder reservoir which will permit a probe to pass through a tab and pressurize a piston in a pressurizing chamber with a test fluid under pressure. This test fluid will allow an operator to visually inspect the master cylinder for fluid failures at various pressures. In the normal operation, the tab of the cover will allow fluid to flow from a supply chamber into the retention chamber. However, during a brake application when fluid is transmitted through the compensator port as the pressurizing piston moves past the compensator port, the tab will prevent this fluid from being squirted into the supply reservoir. This will assure that a minimum quantity of fluid is always present in the retention chamber to operate the brake system even though a low fluid level indicator in the supply chamber presents a failure warning signal to the operator.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: July 20, 1976
    Assignee: The Bendix Corporation
    Inventors: Keith H. Fulmer, Raymond Kosarski, Jr., Harold W. Hughes
  • Patent number: 3965679
    Abstract: A device for utilizing wave energy that is otherwise lost, or spent in eroding shore lines and/or shore facilities, having a combined trough-turbine arrangement is disclosed. Inclined ramp means, curved and triangular deflectors, bucket-wheel combinations, and turbine guards combine with a flywheel to provide smooth-flowing power from wave energy. The interrelationships of the various parts reduces turbulence and increases the thrust of an incoming volume of wave energy, to rotate a shaft from which power can be derived.
    Type: Grant
    Filed: June 14, 1974
    Date of Patent: June 29, 1976
    Inventor: Erasmus J. Paradiso
  • Patent number: 3961480
    Abstract: A pressure source for providing a stream of liquid at a substantial pressure. The pressure source includes pressurizing means such as a piston-cylinder assembly to which a force is applied to expel the contents thereof under pressure to form the stream. Weight means moving from an upper elevation to a lower elevation provides the said force. The pressure source also includes means to release, in discrete quantums of mass, the weight means for downward movement, in the preferred embodiments, without substantial impediment other than the pressurizing means. This provides sufficient force to supply a stream at a usefully high pressure, for example one which can drive a turbine wheel or a linear actuator at a useful velocity. In a preferred form, the weight means is a buoyant body, and the pressure source includes lift means to float the buoyant body to the upper elevation, and then to permit it to descend to the lower elevation.
    Type: Grant
    Filed: January 17, 1974
    Date of Patent: June 8, 1976
    Inventor: William S. West
  • Patent number: 3961481
    Abstract: An arrangement for retaining an actuating member in an extreme position which has a connecting element held in permanent engagement with the actuating member and received between a pair of supports to which the connecting element is pressed by at least one coil of wire wound about the supports with an effort sufficient for retaining the actuating member in its extreme position. The wire is selectively connectable to a source of power so that the wire is heated up whereby the pressure of the supports against the connecting element is reduced, and the connecting element is released to move relative to the supports, thus releasing the actuating member, so that the latter moves through its working stroke.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: June 8, 1976
    Inventors: Nikolai Trofimovich Romanenko, Jury Filippovich Nikitin, Ljudmila Anatolievna Litenkova
  • Patent number: 3958423
    Abstract: In a hydraulic brake booster, wherein a body, to which is coupled a master cylinder, is provided with a projecting portion extending outwardly towards the master cylinder; a power piston adapted to operate the piston of the master cylinder extends through the projecting portion to define a working chamber positioned on the side remote from the master cylinder; a pressure chamber, to which is introduced a pressure fluid from a pressure source, is provided in the middle portion of the body; and a first valve which is normally closed for controlling the communication of the pressure chamber with the working chamber and a second valve which is normally open for controlling the communication of the working chamber with a reservoir are operated by means of a valve stem member and an input shaft adapted to operate the valve stem member; the improvement in which a stop slidingly provided within the pressure chamber and adapted to receive pressure from the pressure chamber in the direction opposite to the moving direc
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: May 25, 1976
    Assignee: Tokico Ltd.
    Inventors: Yoshihiro Hayashida, Tetsuo Haraikawa, Setsuo Mitobe
  • Patent number: 3956895
    Abstract: A regenerative heat engine designed to produce power for the operation of equipment such as an artificial heart is disclosed. The heat engine includes a temperature control heat pipe located around the periphery of the engine cylinder and a temperature distribution heat pipe located around the periphery of the heat source. A flywheel and bellows seal is included as part of the displacer piston drive, and a flexure support is positioned on the hot end of the displacer piston to allow the piston to move longitudinally while restricting lateral motion.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: May 18, 1976
    Assignee: The United States of America as represented by the Administrator of the National Institute of Health
    Inventors: Jack E. Noble, Peter Riggle, Stuart G. Emigh, William R. Martini
  • Patent number: 3956896
    Abstract: Fluid within a pressure chamber is displaced and pressurized by reeling a flexible cable or filament into the pressure chamber. A movable piston or similar pressure-responsive member in fluid communication with the chamber is moved by the displacement of fluid in the chamber, so as to perform useful work. The flexible cable or filament is wound on a motor-driven reel located in the pressure chamber.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: May 18, 1976
    Inventor: Charles A. Bailey
  • Patent number: 3956894
    Abstract: An expansion chamber is provided and heated heat exchange surfaces are disposed in the expansion chamber. An expandable fluid supply is provided together with structure for selectively admitting the expandable fluid into the chamber in good heat exchange relation with the heat exchange surfaces. Further, energy conversion structure is provided and communicated with the expansion chamber and operable to convert the energy of the fluid expanded in the chamber into mechanical energy.
    Type: Grant
    Filed: July 17, 1973
    Date of Patent: May 18, 1976
    Inventor: Robert C. Tibbs
  • Patent number: 3955371
    Abstract: A master cylinder having a secondary piston for absorbing rapid initial pressure increases in proportion to the stroke of the primary piston. The master cylinder includes a housing having a first cylinder formed therein. A first piston is movable within the first cylinder. A second cylinder is formed in the first piston. A second piston is movable within the second cylinder.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: May 11, 1976
    Assignee: Wagner Electric Corporation
    Inventor: Richard C. Bueler
  • Patent number: 3955370
    Abstract: The disclosure concerns a hydraulic slack adjuster useful in the brake circuits of railway as well as road vehicles, and improved brake circuits and apparatus particularly suited to the needs of railway rapid transit service. One type of circuit incorporates the slack adjuster in combination with a simple air-to-hydraulic booster and defines a portion of a service brake, and another type utilizes this apparatus in combination with a hand brake control unit and a double check valve and enables the brake cylinders to perform both service braking and hand braking functions.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: May 11, 1976
    Assignee: General Signal Corporation
    Inventor: Thomas H. Engle
  • Patent number: 3952519
    Abstract: In a system for converting heat energy to mechanical energy, a working fluid is vaporized and then permitted to expand in an expander. The vaporized working fluid is introduced to a condenser including a container and a conduit for guiding the working fluid through the container. A condensing medium in a generally solid state is disposed in the container in contact with the conduit to absorb heat from and thereby condense the working fluid. In response to the absorbed heat, the condensing medium liquifies, in which state it can be supercooled at ambient temperatures and stored for an extended period of time. The supercooled condensing medium can be triggered at a predetermined time to release the absorbed heat to the system. The provision of a super-coolable condensing medium in the condenser minimizes the heat loss thus providing a significant increase in the overall efficiency of the system.
    Type: Grant
    Filed: July 2, 1973
    Date of Patent: April 27, 1976
    Assignee: Kay Laboratories, Inc.
    Inventor: William K. R. Watson
  • Patent number: 3950948
    Abstract: Hydraulic control apparatus for automatic remote control of a hydraulic actuating ram. The apparatus has a double-acting slave cylinder connectable hydraulically to an actuating ram, and a double-acting master cylinder the piston of which is mechanically connected to the piston of the slave cylinder, the master cylinder being operable by hydraulic pressure supplied via a pilot-operated valve arranged automatically to reverse the stroke of the master ram at limits set according to the desired stroke of the actuating ram. The control apparatus may be used for controlling actuating rams which effect reciprocating pivotal movement about one or more axes of a water jet monitor.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: April 20, 1976
    Assignee: English Clays Lovering Pochin & Company Limited
    Inventor: William George Luke
  • Patent number: 3949554
    Abstract: A regenerative heat engine designed to produce power for the operation of equipment such as an artificial heart is disclosed. The heat engine includes a temperature control heat pipe located around the periphery of the engine cylinder and a temperature distribution heat pipe located around the periphery of the heat source. A flywheel and bellows seal is included as part of the displacer piston drive, and a flexure support is positioned on the hot end of the displacer piston to allow the piston to move longitudinally while restricting lateral motion.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: April 13, 1976
    Assignee: The United States of America as represented by the United States National Institute of Health
    Inventors: Jack E. Noble, Peter Riggle, Stuart G. Emigh, William R. Martini
  • Patent number: 3949557
    Abstract: A method and apparatus for generating power by compressing and expanding a first fluid in inward and outward extending first fluid passages within a centrifuge type rotating rotor. In a closed form of the turbine, heat is supplied to the first fluid by circulating a second fluid in a heat exchanger within the rotor, and heat is removed from from the first fluid by circulating a third fluid through another heat exchanger. A regenerator type heat exchanger is provided for removing heat from the first fluid during compression and adding heat into said first fluid during expansion; thus, heat is taken from one stream of the first fluid and the same heat is added into another stream of of the first fluid within the rotor. Alternately, two rotors may be used, with a second rotor serving as the power output rotor. Also, in an open form, the cooling heat exchanger may be deleted, with the first fluid entering from outside of the rotor and being discharged to outside said rotor.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: April 13, 1976
    Inventor: Michael Eskeli
  • Patent number: 3948051
    Abstract: A fluid pressure amplifier for intensifying fluid pressure, the amplifier comprising a housing including a gas-hydraulic interface piston; a first chamber includes a slave piston mounted for reciprocation therein and for abutting engagement with a work piece. A hydraulic fluid path extends intermediate the interface piston and the first chamber so as to apply hydraulic pressure thereto. A second chamber is disposed in the path intermediate the first chamber and the interface piston and includes a check valve in the path intermediate the second chamber and the first chamber. A third chamber, includes a fluid intensifier piston having a head end and a tail end, the head end being mounted for reciprocation in the third chamber and the tail end being mounted for reciprocation in the second chamber. The head end of the intensifier piston has a larger diameter than the tail end and is exposed to gas pressure while the tail end is exposed, in the second chamber, to hydraulic pressure.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: April 6, 1976
    Inventor: Don J. Marshall
  • Patent number: 3946564
    Abstract: An oil-hydraulic servo-motor, usable with an automotive brake, including a control piston slidably extending through the rear end wall of a power cylinder in aligned opposite relation to an output piston therein and forming together with the cylinder end wall a spool-type control valve which is operable to energize and de-energize the power cylinder. The control piston is axially movable normally within definite limits under the operator's input, and abutment means provided to limit the extent of advancing movement of the control piston is rendered inoperable automatically upon failure of an associated oil pressure circuitry to enable the control piston to drive the output piston directly under the operator's input. The oil pressure circuitry may be formed in two independently operable systems. Major features include simplicity of the valving mechansim and hence of the entire structure of the servo-motor and a highly improved reliability in operation.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: March 30, 1976
    Assignee: Nisshin Kogyo Kabushiki Kaisha
    Inventor: Tadao Nakagawa
  • Patent number: 3946563
    Abstract: A master cylinder for a dual hydraulic braking system has two pistons arranged end-to-end in respective bore sections, each piston having sealing valves which close off communication between front and rear brake circuits and respective reservoirs when displaced by operation of a brake pedal to cause pressurization of respective compression chambers connected to the brake circuits. This invention provides two seals in the inner piston between the two compression chambers and an auxiliary chamber defined between these seals into which small quantities of brake fluid escape in the event of leakage from either compression chamber to give visual warning of such leakage.
    Type: Grant
    Filed: June 14, 1974
    Date of Patent: March 30, 1976
    Assignee: Fiat societa per Azioni
    Inventors: Enrico Rivetti, Giuseppe Rosso
  • Patent number: 3943718
    Abstract: Supplementary means for heating liquid in a steam producing boiler comprising an electrical heating unit located in the boiler, the current for which is produced by an electric generator driven by a steam operated turbine. The turbine may utilize all or only part of the steam output of the boiler. Where the turbine uses substantially all of the steam, the generator driven by the turbine will have excess capacity to be used to drive a motor. Where the turbine uses only enough steam to drive a generator sized to meet the needs of the heating unit, the balance of the steam will ordinarily be used to drive some major prime mover or to supply heat to a heating system.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: March 16, 1976
    Inventor: Clyde F. Berry