Patents Examined by Sheldon Richter
  • Patent number: 6834636
    Abstract: An internal combustion barrel engine includes an engine housing with a first and second end. An elongated power shaft is longitudinally disposed in the engine housing and defines a longitudinal axis. A combustion cylinder and a guide cylinder are spaced apart and disposed on a common cylinder axis that is generally parallel to the central axis. The cylinders each have an inner end and an outer end, with the inner ends being closer to each other. The outer end of the combustion cylinder is closed. An intake system is operable to introduce a mixture of air and/or fuel into the combustion cylinder. A track is supported between the inner ends of the cylinders and has an undulating cam surface. The track is moveable such that the portion of the cam surface most directly between the cylinders undulates toward and away from the inner end of the combustion cylinder.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: December 28, 2004
    Assignee: Thomas Engine Company
    Inventors: Charles Russell Thomas, Bret R. Hauser, David P. Branyon
  • Patent number: 6820420
    Abstract: A solar-based power generating system including an electrical alternator or generator for generating electrical power in which the alternator or generator is driven by a refrigerant circulating through a closed-loop heat transfer system including an evaporator exposed to solar energy and a condenser disposed within a large heat sink such as a body of water.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: November 23, 2004
    Assignee: Global Energy Group, Inc.
    Inventor: Thomas H. Hebert
  • Patent number: 6591612
    Abstract: The invention relates to an electrically operated charge-air compressor, for connection to an internal combustion engine, which includes an electric motor with a stator and a rotor for driving a compressor impeller; the compressor impeller is disposed in a compressor housing that is provided with at least one air inlet and one air outlet, and the air inlet and the air outlet communicate via a flow conduit extending in the compressor housing, and by rotation of the compressor impeller in a compression portion of the flow conduit, a compression of the charge air is attainable. It is proposed that the charge-air compressor be refined such that the compressor impeller can be displaced in the compressor housing out of a working position into a position of repose and back again, and the compressor impeller upon a displacement into the position of repose is moved at least partway away from the compression portion.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: July 15, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Martin-Peter Bolz, Michael Baeuerle
  • Patent number: 6553764
    Abstract: A turbocharger system for use in an internal combustion engine, and particularly suitable for use in an on-road vehicle, is provided with a turbocharger including a turbine, a compressor and a turboshaft coupling the turbine and the compressor together; mechanically coupling a first motor/generator to the turboshaft; mechanically coupling a second motor/generator to a flywheel; electrically coupling the second motor/generator to the first motor/generator; storing power in the flywheel using the second motor/generator during periods of excess turbocharger boost; and rotating the turbocharger shaft using the first motor/generator during periods of insufficient turbocharger boost. The turbocharger system provides a compact and efficient method of storing energy in the flywheel during periods of excess turbocharger boost, and retrieving energy from the flywheel during periods of insufficient turbocharger boost.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: April 29, 2003
    Assignee: Caterpillar Inc
    Inventors: John R. Gladden, Beth A. Hinchee
  • Patent number: 6553762
    Abstract: In an exhaust gas turbocharger for an internal combustion engine including an exhaust gas turbine and a compressor connected to the turbine so as to be operated thereby, the turbine includes a housing consisting of an inner and an outer shell formed from steel sheets and being arranged in spaced relationship so as to form therebetween an intermediate space.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: April 29, 2003
    Assignee: DaimlerChrysler A.G.
    Inventors: Paul Löffler, Wolfgang Erdmann, Peter Fledersbacher, Siegfried Sumser, Friedrich Wirbeleit, Jürgen Willand
  • Patent number: 5899065
    Abstract: An arrangement for bleeding or flushing a hydraulic system includes a portable pump and a hydraulic fluid packet. The hydraulic fluid packet comprises a flexible receptacle which contains a body of hydraulic fluid. A spout is located at one end of the receptacle and an opening is provided at the opposite end of the receptacle. The spout can be connected to the pump and the opening allows the receptacle to be suspended with the spout facing down. As hydraulic fluid is withdrawn from the receptacle, the receptacle collapses around the remaining hydraulic fluid to inhibit the formation of air pockets in the receptacle.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: May 4, 1999
    Assignee: Phoenix Systems, L.L.C.
    Inventor: Jon A. Petty
  • Patent number: 5865086
    Abstract: Description of a system of a thermodynamic steam pump for water propulsion, its heating, disinfection and sterilization, or propulsion of other liquids, characterized by use of water steam pressure as the propelling media of a liquid mass directly, without intermediate equipment to convert the energy, which is composed of a pressure tank, an electric input valve, steam under pressure provided by an external source and means for introduction by gravity of the liquid mass to be impulsed, with electromechanical elements to control level and flow, including a heat exchanger where recycled steam is forced through a tube panel which over heats the liquid thus eliminating the existing microbes and bacteria or just taking advantage of said heat exchanger to pre-heat and fluidify heavy crude oils or other viscous liquids with no expense of additional energy. This same thermo-hydro-dynamic system installed in a surface vessel (ship) can act as propulsor of the same by the action and reaction principle. (Jet propulsion.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: February 2, 1999
    Inventor: Haris Petichakis P.
  • Patent number: 5829251
    Abstract: Hydraulic control circuit for working components, in particular in earth-moving machines, said machines comprising a front group provided with actuators controlled by first hydraulic distributors (1,2) and a rear excavator group provided with actuators controlled by second hydraulic distributors (3-8), in said rear excavator group there being present a main arm actuated by a main actuator (13) controlled by a main distributor (3) located upstream of the remaining second distributors (4-8). The main actuator (13) supplies in series the remaining second distributors (4-8) when the pressure downstream thereof is less than a predetermined value and instead discharges the fluid under pressure when said pressure downstream thereof reaches or exceeds said predetermined value. In the front group there is also provided an additional distributor (A-B) which sends the fluid under pressure immediately downstream of the main distributor (3) of the rear excavator group via a bypass line (23).
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: November 3, 1998
    Assignee: Fki Fai Komatsu Industries S.p.A.
    Inventor: Umberto Muraro
  • Patent number: 5809781
    Abstract: A neutral by-pass for hydraulic fluid in a hydrostatic transmission is provided by an essentially closed conduit comprising a pair of bores and a channel communicating the pair of bores, all formed in the cam ring of the transmission. When the neutral point is attained, the bores will be communicated with oil dampening pistons in communication with the hydraulic fluid supply passages and the fluid pressure between the passages will be equalized. This will operate from either the forward or reverse direction. As the cam ring is angularly moved, essentially closed conduit is moved away from the dampening pistons, so there can be no fluid flow therethrough. When this occurs, all fluid flow goes to the motor rotor, causing output rotation.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: September 22, 1998
    Assignee: Dana Corporation
    Inventor: William Douglas Krantz
  • Patent number: 5809862
    Abstract: A flotation control system for controlling the boom of a tractor or brush cutting machine. Three hydraulic valves operate together and work in conjunction with the existing main valve of the tractor or brush cutting machine to provide flotation control or automatic movement up and down of the boom in response to ground surface variations. The system also allows the amount of weight that the cutter or other attachment exerts against the ground to be increased or decreased. The first valve is a flow control valve or a flow restricting or dividing valve that divides hydraulic flow from the pump of the tractor to the flotation control system. The second valve is a pressure reducing valve that provides the general operation of the flotation control system. The third valve is a directional valve and functions as an on/off for the flotation control system.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: September 22, 1998
    Inventor: Jimmie J. Dallman
  • Patent number: 5806313
    Abstract: This invention relates to an arrangement for communicating fluid between a pressurized source and an implement that is remotely mounted on a linkage arrangement of a construction machine. The conduit arrangement includes a pair of conduits positioned internally within the linkage arrangement. One conduit communicates the pressurized fluid to a control valve mounted on the end of the linkage, while the second returns the fluid to a reservoir. This arrangement permits a plurality of conduits to extend between the control valve and a multi-function implement mounted on the linkage arrangement while limiting the number of conduits between the control valve and the source of pressurized fluid.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 15, 1998
    Assignee: Caterpillar Inc.
    Inventors: Howard T. Koshi, Thomas C. Grieshaber
  • Patent number: 5806310
    Abstract: An HC (hydrocarbon) supplementing device is mounted in an exhaust purification device of an internal combustion engine, wherein the amount of HC in the fuel to be added is automatically adjusted to a degree corresponding to the operating conditions of the engine. Accordingly, the supply of just enough HC becomes possible without the use of a complex mechanism for adjusting the supply of HC, and the exhaust gas can be sufficiently purified without wasting fuel.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: September 15, 1998
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shigeki Daidou, Kiyonori Sekiguchi, Yoshiyuki Ito, Shinya Hirota, Masahito Shibata
  • Patent number: 5806306
    Abstract: A deterioration monitoring apparatus for an exhaust system of an internal combustion engine includes an air-fuel ratio control system and a deterioration determining circuit. The air-fuel ratio control system controls an air-fuel ratio of exhaust emissions flowing downstream of a catalytic converter disposed in the exhaust system of the engine to agree with a target downstream air-fuel ratio under feedback control based on an air-fuel ratio of exhaust emissions flowing upstream of the catalytic converter and the air-fuel ratio of the exhaust emissions flowing downstream of the catalytic converter. The deterioration determining circuit determines whether the exhaust system such as an oxygen sensor mounted downstream of the catalytic converter or the catalytic converter is deteriorated or not based on the air-fuel ratio of the exhaust emissions flowing downstream of the catalytic converter and the target downstream air-fuel ratio.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: September 15, 1998
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshiyuki Okamoto, Yasumasa Kaji, Hisashi Iida
  • Patent number: 5799560
    Abstract: A check valve for controlling a pneumatic threaded fastener-setting tool comprises a hollow cylinder housing connected between the tool and a pneumatic source for transmitting the air pressure therethrough, a retaining ring, a stopper member, a guider member, a slide and the springs sequentially disposed inside the housing. An actuator rod inserted into the tool pushes the slide moving inward for permitting the stopper member to close an air duct in order to interrupt the air fluid from going through thus to stop a shank of the tool from further extracting movement.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: September 1, 1998
    Inventor: Tien-Ju Meng
  • Patent number: 5799486
    Abstract: An axle driving apparatus in which a hydraulic pump and a hydraulic motor which constitute a hydrostatic transmission are disposed on a center section. In a horizontal portion of the center section are provided a pair of linear oil passages in parallel to each other. A pair of arcuate ports are provided on a pump mounting surface formed on the horizontal portion of the center section. The pair of arcuate ports are substantially perpendicular with respect to the direction in which the oil passages extend. The axis of slanting movement of a movable swash plate of the hydraulic pump extends laterally of the vehicle body on which the axle driving apparatus is provided. The rotating direction of an arm provided on a control shaft for slantingly operating the movable swash plate is coincident with the operating direction of a control rod connected with a speed changing member. Thus, the link mechanism for connecting the speed changing member and the control arm for the movable swash plate is simplified.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: September 1, 1998
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Kenichi Takada, Ryota Ohashi, Hironori Sumomozawa, Hiroaki Shimizu
  • Patent number: 5791229
    Abstract: A control device for a travelling system in construction vehicles is disclosed. The control device applies the pilot pressure of the pilot pump to the spool of the directional control valve separately from the travelling control pedal, thus automatically controlling operation of the directional control valve. However, the manual control mode performed by the travelling control pedals has priority over the automatic control mode. The control device has a proportional control valve, which applies the pilot pressure of the pilot pump to the spool in response to an input current signal. A pressure sensor checks the pilot pressures, which are generated by both the travelling control pedals and the proportional control valves and act on the spool. A controller receives a signal indicative of the pilot pressures checked by the pressure sensor and outputs the current signal to the proportional control valve.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: August 11, 1998
    Assignee: Samsung Heavy Industries Co., Ltd.
    Inventors: Jin Han Lee, In Taek Nam
  • Patent number: 5791140
    Abstract: An exhaust gas-purifying system for an internal combustion engine includes an alternator driven by the engine. A regulator controls voltage generated by the alternator. An electrically-heated catalyzer is arranged in the exhaust system of the engine and connected to the alternator to be electrically heated by electric power generated by the alternator. An ECU controls the regulator to control the voltage generated by the alternator and supplied to the electrically-heated catalyzer, according to operating conditions of the engine detected by sensors such as an engine coolant temperature sensor and an intake air temperature sensor.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: August 11, 1998
    Assignee: Honda Giken Kogyo K.K.
    Inventors: Yuichi Shimasaki, Akihisa Saito, Tetsu Teshirogi, Takuya Aoki, Hiroaki Kato, Takashi Komatsuda, Hideo Furumoto, Takayoshi Nakayama
  • Patent number: 5787793
    Abstract: A hydraulic cylinder with which it is possible to promote cost reduction and weight reduction by reducing the number of parts, ensure that a sealing function is fully performed and also make possible a reduction in size comprises a cylinder tube 4, a piston 1 slidably installed inside this cylinder tube 4, a rod 6 connected to the piston, a bearing 9 supporting the rod 6, a tubular cylinder head 10 mounted in the front end of the cylinder tube and seals 12 and 13 mounted in contact with the rod 6 on an inner circumferential surface of the cylinder head 10; a cylindrical recess 19 is formed in the front end of the cylinder tube 4, the radius R of this cylindrical recess 19 is made larger by a predetermined dimension than the radius r of a piston sliding surface formed on the cylinder tube 4, a screw thread 19a is formed in this cylindrical recess 19, the cylinder head 10 is screwed into this cylindrical recess 19 and the bearing 9 supporting the rod 6 is mounted on an inner circumferential surface of this cyli
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: August 4, 1998
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Susumu Niwa, Yukihiro Takada
  • Patent number: 5778753
    Abstract: A pneumatic or hydraulic cylinder assembly (10) includes a cylinder (10), a piston (12) axially slidable within the cylinder (10), and structural elements are disposed within the cylinder (10) to issue a piston (12) position signal in response to the piston reaching a predetermined position.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: July 14, 1998
    Assignee: Parker Hannifin Pty Limited
    Inventor: George Douglas Higgins
  • Patent number: 5775202
    Abstract: A brake actuator includes an inelastically deformed separate clamp band holding the brake actuator housing portions together. The actuator is formed by cutting the clamp band from a roll of thin stainless steel. The cut portions are formed to have an L shaped section. The short L end is then placed on one of the flanges of the brake actuator housing members. The other end of the clamp band is then deformed inwardly to secure the brake actuator housings together. The invention results in a relatively low cost clamp band. The clamp band has particular application on the service side of the spring brake actuator, although it would also be useful on the emergency side.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: July 7, 1998
    Assignee: Indian Head Industries, Inc.
    Inventors: Ronald S. Plantan, Graydon Choinski