Patents Examined by Jane Obee
  • Patent number: 4728272
    Abstract: In a fluid displacement machine with a rotor ring (7) rotatably supported about a fixed axis (6) and carrying a number of radially movable vanes (a-h), the latter being held in fluid-tight contact with the chamber wall (5) of the machine housing (3) by a stationary vane guide block (9), the new feature is that the vane guide block (9) is loosely supported inside the rotor ring (7), where it is held in its working position by the revolving vanes (a-h).With this arrangement it is possible to dispense with special securing means for the guide block (9), thus making it possible to connect both ends of the rotor ring (7) (i.e. both in front of and behind the plane of the Figure) with the drive shaft (18), resulting in a considerable increase in the mechanical strength of the machine, so that it may be used for rough work, such as pumping comminuted meat containing fragments of bone.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: March 1, 1988
    Inventor: Knud Simonsen
  • Patent number: 4719991
    Abstract: A lubricant distribution system which includes a standard oil storage tank, a pump, a retractable hose reel for discharging the lubricant, and a saddle bracket for mounting the reel to the covered upper surface of the tank. The bracket is configured to facilitate attachment of the reel to a lubricant containing tank in an operative system by connecting to the tank at the ventilation cap fitting of the tank, and to be supported and leveled upon the tank with adjustable feet.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: January 19, 1988
    Assignee: Prestolite Wire Corporation
    Inventors: Philip H. Diehn, Timothy P. Dunigan, Jr.
  • Patent number: 4714138
    Abstract: A device for draining an engine sump of the type having a threaded drain plug comprises a cup-like container having a flexible flange surrounding the open end thereof. The flange is provided with a gasket for forming a fluid tight seal between the sump and the container and with magnet means for adhering the container to the sump. A shaft carrying a socket on one end extends into the container and is sealably movable with respect thereto. Once the container is placed in position over a drain plug, the plug can be engaged and removed by manually turning a handle provided on the other end of the shaft. After removal of the plug, oil from the sump drains from a tube at the bottom of the container whereby contact with the oil by the service person is completely avoided.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: December 22, 1987
    Inventor: Samuel G. Zaccone
  • Patent number: 4683985
    Abstract: A vertical gear unit has a downwardly extending output shaft operably connected at its upper end to a motor and at its lower end to an impeller. A first housing defines a first lubricating oil sump and a second housing defines a second lubricating oil sump for collecting lubricating oil exiting from a bearing for the drive shaft, the lubricating oil having been supplied from the first housing. The first and second housings are vertically spaced about the output shaft with the first housing being disposed vertically above the second housing. A pneumatic purge is provided for supplying air into the second sump for increasing the pressure therewithin to a level above the pressure within the first sump. A conduit connects the first and second sumps, with the relatively high pressure within the second sump driving the lubricating oil collected therewithin upwardly into the first sump.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: August 4, 1987
    Assignee: Dresser Industries, Inc.
    Inventor: Claes L. Hultgren
  • Patent number: 4648817
    Abstract: A supercharger for supplying a heat engine of a motor vehicle includes a main body having a working chamber in which rotate at least two bodies continuously sealed along at least one generatrix parallel to the axis of the main body and in which said chamber is in communication with an intake duct and an outlet duct. The main characteristic of this supercharger lies in the fact that it comprises constituent parts made with a relatively rigid supporting structure having an external form provided by moulding material onto the supporting structure.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: March 10, 1987
    Assignee: Gilardini S.p.A.
    Inventor: Lauro Mariani
  • Patent number: 4571165
    Abstract: A rotor housing for rotary piston engines has an inner wall formed with a first layer of chromium plating, and a second layer of nickel-fluorine resin composite plating formed on the first layer. The second layer of composite plating includes 9 to 40 vol. % of fluorine resin particles dispersed in nickel matrix and has a thickness of 5 to 25 microns.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: February 18, 1986
    Assignee: Mazda Motor Corporation
    Inventor: Yoshinori Murata
  • Patent number: 4415319
    Abstract: A plurality of pump sections are received in a stack in a body. Each of the pump sections include a cam ring disposed in surrounding relationship with a rotor having vanes thereon, and a pair of sideplates which closes the opposite sides of the cam ring. All of the pump sections are driven by a common drive shaft, thereby providing a compact pump unit having a reduced axial length. The outermost sideplates are subject to a discharge pressure from the respective pump sections to urge the various components of the individual pump sections to be held against the body. In this manner, the components are maintained at given accurate locations, eliminating the likelihood of a liquid leakage and simplifying the arrangement.
    Type: Grant
    Filed: August 11, 1981
    Date of Patent: November 15, 1983
    Assignee: Jidosha Kiki Co., Ltd.
    Inventors: Naosuke Masuda, Takeshi Ohe, Tadaaki Fujii
  • Patent number: 4413962
    Abstract: Torque-amplifying servomechanism particularly for use in motor vehicle power steering systems, having the advantage of occupying less space in the axial sense;The device provided by the invention is made up by the association of a hydraulic motor of the vane type and a rotary piston, known per se and secondly, a fluid distributor of the valve spool type said spool being arranged actually inside the body of the rotary piston.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: November 8, 1983
    Assignee: Societe Anonyme DBA
    Inventor: Gilbert Kervagoret
  • Patent number: 4412796
    Abstract: The invention concerns helical- or screw-type driving and driven rotors having lands and intervening grooves for coacting engagement, within a housing of a machine, such as a gas compressor or expander, the rotors having improved, more efficient, profiles. The profiles are defined with contiguous elliptic and involute sections to improve the pressure angle, and the profiles are configured to define rotor-to-rotor sealing surfaces in closure of a compressed gas pocket in which, the pocket gas pressure always urges or torques the driven rotor in the positive or forward-rotary direction.
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: November 1, 1983
    Assignee: Ingersoll-Rand Company
    Inventor: James L. Bowman
  • Patent number: 4398868
    Abstract: A control apparatus for a gas dynamic pressure-wave machine for charging combustion engines. The inflow cross-sectional area of the gas pocket in the high-pressure exhaust channel is controlled in accordance with the desired operating conditions of the engine by a bimetallic flap or valve member as a function of the temperature of the high-pressure exhaust gas.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: August 16, 1983
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Christian Komauer, Andreas Mayer
  • Patent number: 4388052
    Abstract: A fixed displacement pump including a variable capacitance flow regulator for absorbing the excess fluid flow from the pump which is not required by a hydraulic system. The variable capacitance flow regulator, in a hydraulic embodiment, includes a pair of pistons slidably movable within a housing for independent movement relative to each other. The fluid pressure in the hydraulic system is communicated to a first of the pistons to bias it to various positions within the housing depending upon the pressure level in the hydraulic system. The second or varibale capacitance piston is acted upon by the fluid pressure in the pump discharge chamber, and when the pressure in the hydraulic system exceeds the spring pre-load against the first piston, the first piston will be displaced away from the second piston.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: June 14, 1983
    Assignee: J. I. Case Company
    Inventors: Eugene L. Falendysz, Sr., Eldon M. Brumbaugh, Max R. North