Patents Examined by Theodore Olds
  • Patent number: 4806080
    Abstract: A pump including an impeller having a magnet or a second conductor therein, the impeller being adapted to be directly rotated by virtue of magnetic fields of stator coils. The impeller is rotated within a casing in close proximity thereto via ceramic bearing members, one bearing member having spiral grooves on its slide surface. The ceramic bearing members constitute a dynamic pressure bearing means.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: February 21, 1989
    Assignee: Ebara Corporation
    Inventors: Shotaro Mizobuchi, Katsumi Sasaki, Yoshikazu Kimura
  • Patent number: 4798522
    Abstract: A joint structure has a fuel supply pump disposed within a fuel tank in a vertical posture, and a fuel outlet pipe projecting from the upper end surface of the fuel supply pump. A cylindrical retaining member is fitted around the fuel outlet pipe and an O ring is also fitted around the fuel outlet pipe in contact with the upper end surface of the cylindrical retaining member. The inner surface of the O ring is in close contact with the outer surface of the outlet pipe. A cylindrical joint member penetrates the upper wall of the fuel tank and an upper opening of the joint member is connected to one end of a fuel supply pipe leading to an engine. The fuel outlet pipe is pressed into a lower opening of the joint member. At this time, the outer peripheral surface of the O ring retained by the cylindrical retaining member in contact therewith, comes in close contact with an inner surface of the joint member.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: January 17, 1989
    Assignee: Nippondenso Co., Ltd.
    Inventors: Hideki Kaga, Hisanori Kobayashi
  • Patent number: 4792288
    Abstract: The invention relates to a compressor (2) which is encapsulated in a housing (4) and which can be rotated about the axis (16) of its crankshaft (8) while maintaining the oil lubrication of the moving parts of the compressor. The interior (14) of the housing (4), in which an oil sump (18) is located, is connected flow-wise to the compressor (2). According to the invention, the interior (14) is connected to two gas lines (24, 26) which lead to a common manifold (32) via at least one shutoff valve (28, 30). The connecting openings (25, 27) of the two gas lines (24, 26) leading into the interior (14) are arranged opposite to one another in the vicinity of the axis (16) of the crankshaft (8). By these measures, the compressor can be inclined relative to the horizontal over a wide angular range without lubricating oil flow into the gas loop.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: December 20, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernd Gromoll, Peter Gulden
  • Patent number: 4787812
    Abstract: A self-propelled apparatus for lifting arrays of paving stones has a mobile arm one end of which carries a support for a polygonal assembly of suction cups having axially and angularly movable bellows which attract the paving stones of an array during transport. The support further carries directional jaws which are adjacent to the sides of the polygonal assembly of suction cups and are movable relative to the support to rearrange the paving stones of an array if the distribution of paving stones departs from an optimum distribution. The jaws are moved out of the way before the suction cups deposit the paving stones of an array so that a freshly deposited array can be placed into immediate or close proximity of the previously deposited array or arrays.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: November 29, 1988
    Inventor: Reinhard Gopfert
  • Patent number: 4787826
    Abstract: A pump, particularly, for pasteous masses, includes a rotatable outer wheel provided with a plurality of inner teeth, a pinion rotatable inside the outer wheel eccentrically thereto and having a plurality of outer teeth, the outer wheel and the pinion forming an intermediate space therebetween, a pressure seqment located in the intermediate space between the outer wheel and the pinion, an inlet and an outlet which are offset relative one another in direction of rotation, and a filling device connected with the inlet, the filling device including a filling container and a feeding element arranged in the filling container and having a feeding direction so as to feed a mass toward the inlet.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: November 29, 1988
    Assignee: Karl Schnell GmbH & Co. Maschinenfabrik
    Inventor: Karl Schnell
  • Patent number: 4781378
    Abstract: A promotional game particularly adapted for use in connection with packaged food products, the game including a game board preferably printed on the product container and one or more game cards. The game board has imprinted on it a first set of game indicia which is common to all packages utilized in the promotion. The game card consists of a transparent film laminate on which is imprinted a second set of game indicia, which will vary from card to card. The card consists of a film laminate including a transparent core layer of biaxially oriented polymeric film on which is printed the second set of game indicia, which is then coated with adhesive, and laminated with a layer of transparent, grease and oil resistant, polymeric film. The game is played by removing the card or cards from the package and placing it in overlying register with the game board to determine whether that combination is a game winner.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: November 1, 1988
    Assignee: Lustour Corp.
    Inventors: John V. Clinnin, Dale E. Dolence
  • Patent number: 4781548
    Abstract: A modular infusion pump system utilizes a positive displacement pump for pumping a known quantity of fluid for each stroke. A plurality of longitudinally spaced apart fixed combs cooperate with a resilient tube to define a known pumping volume. A plurality of movable combs are interdigitated with the fixed combs and are periodically linearly directed to cause the pump volume to be compressed, and therefore the fluid expelled. A rotary to linear drive system is connected with the movable combs and a ratchet system prevents counterrotation when the motor is in the off position. Valves are disposed above and below the pumping unit to appropriately seal off the pumping volume. The valves and the movable combs are operated by means of cams carried by a common shaft.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: November 1, 1988
    Inventors: Richard K. Alderson, Ronald D. Sleater, James R. Talley
  • Patent number: 4780061
    Abstract: A screw compressor assembly includes a motor housing section, a compressor section and an oil separator downstream of the compressor discharge port. The motor housing section defines a flow path for suction gas traveling to the working chamber of the compressor so that the compressor drive motor is cooled by suction gas. The motor housing section also internally defines an integral heat exchange structure through which a passage for the flow of oil is defined. Discharge pressure in the oil separator drives separated oil into the passage in the motor housing heat exchange structure prior to the delivery of such oil to compressor surfaces requiring lubrication. The oil flowing through the integral heat exchange structure is cooled by the suction gas passing over the surface of the heat exchange structure interior of the motor housing.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: October 25, 1988
    Assignee: American Standard Inc.
    Inventor: Arthur L. Butterworth
  • Patent number: 4778181
    Abstract: An elongated generally cylindrical body of rigid plastics material has a handle portion and an outer portion and defines a longitudinally extending internal bore or chamber. An elongated rod is supported within the chamber for longitudinal movement and has an outer end portion projecting into an enlarged portion of the chamber. In one embodiment, a fifth wheel release actuator is removably connected to the outer end portion of the rod, and the rod supports the actuator for movement between a retracted position within the chamber and an extended position projecting outwardly from the body where the inner end portion of the rod threadably connects with the body. The actuater includes a pivotal hook-like plate which may be repositioned to provide for pushing or pulling of the fifth wheel release handle. In a modification, the chamber confines a pressurized tear gas canister or container which is shifted axially for dispensing the gas in response to axial movement of the rod within the chamber.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: October 18, 1988
    Inventor: James L. Arney
  • Patent number: 4778357
    Abstract: In an electromagnetic pump, the inner end of an outlet pipe fixed in a pump housing extends for a predetermined length inside a sleeve housing a plunger to form a pump delivery pulsation absorption chamber around the outlet pipe. The inner end opening of this pipe is selectively closed by a control valve serving as a guide member for slidably guiding a valve body of a delivery valve along the axial direction. The fuel leakage prevention control valve and the pulsation absorption chamber are simply and optimally formed with a single construction.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: October 18, 1988
    Assignee: Jidosha Kiki Co., Ltd.
    Inventors: Takatoshi Arai, Michio Idei
  • Patent number: 4776771
    Abstract: A self-aspirating and self-bleeding metering pump comprises a metering chamber having an inlet connected with a predelivery chamber and an outlet connected with a metering point. The predelivery chamber is connected with a metering agent tank through a suction conduit comprising a suction valve and a return conduit comprising a head valve. Furthermore, a diaphragm for predelivering into the predelivery chamber is provided. A metering section of the diaphragm cooperates with the metering chamber for performing the metering stroke and comprises a separate drive serving this purpose. In this manner dynamically stressed sealing members are avoided, whereby the self-aspirating and self-bleeding metering pump is resistent also to the metering of aggressive media.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: October 11, 1988
    Assignee: Grunbeck Wasseraufbereitung GmbH
    Inventor: Hans Kern
  • Patent number: 4775154
    Abstract: A promotional game particularly adapted for use in connection with packaged food products, the game including a plurality of specially constructed game cards. Each game card consists of a transparent film laminate on which is imprinted a set of game indicia, which will vary from card to card. The card consists of a film laminate including a core layer of biaxially oriented polymeric film on which is printed the game indicia, which is then coated with adhesive, and laminated with a layer of transparent, grease and oil resistant, polymeric film. The game is played by removing cards from packages and placing them in overlying register with each other to determine whether that combination is a game winner.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: October 4, 1988
    Assignee: Lustour Corporation
    Inventors: John V. Clinnin, Dale E. Dolence
  • Patent number: 4773830
    Abstract: A gas driven pump (102) is controlled by an asynchronous controller (101). The controller (101) has two control conduits (105,103) respectively in communication with the bottom and top regions of the chamber of the pump (102). Low pressure air is bubbled through the control conduit (105) in communication with the bottom region of the pump chamber; therefore, the pressure in that conduit, which is applied to the face top of the diaphragm (111), in a direct function of the depth of the liquid in the pump chamber. The other control conduit (103) is in communication with the bottom face of the diaphragm (111). When the difference of the pressures in the control conduits (105,103) exceeds the bias of the spring (114), the diaphragm (111) and the attached spool (128) move downward to activate a mechanically operated pilot valve (144). The pilot valve, in turn, releases supply air under pressure to switch the main valve (145) from the rest state to the operated state to initiate discharge of liquid by the pump.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: September 27, 1988
    Assignee: Addison Pump Company
    Inventor: Matthew R. Vetter
  • Patent number: 4769748
    Abstract: A lamp combination wherein the reflector's reflective surface is of a shape specifically designed to compensate for the refractive effects produced by the thickness of the glass walls of the light source's envelope structure located within (surrounded by) the reflector. Optimum light output is thus assured. A method of making such a lamp is also disclosed.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: September 6, 1988
    Assignee: GTE Products Corporation
    Inventors: Robert E. Levin, George J. English
  • Patent number: 4767290
    Abstract: A self-priming pistonless lift pump has a first elongate tubular cylinder within which a second elongated tubular cylinder is loosely contained and freely slidable, the respective cylinders having inlet valves at their lower ends, and at their upper ends having fluid outlets, the outlet of the second tubular cylinder being transversely aligned with the outlet of the first cylinder when the second cylinder is in a lowermost position of travel within the first cylinder.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: August 30, 1988
    Inventor: Ellis O. Jones
  • Patent number: 4767287
    Abstract: A reciprocating opposed piston mechanism having at least one cylinder assembly mounted to oscillate in rotary relation to a block about a central axis, two opposing pistons reciprocally mounted within the cylinder, each of the pistons having an eccentric bearing mounted in its rear portion with an eccentric rotatably mounted in each eccentric bearing, each eccentric fixedly mounted to an eccentric shaft. Each eccentric shaft is mounted to the engine block and rotatable about an eccentric shaft axis equally spaced in opposite directions from the central cylinder oscillation axis. Timing mechanisms in force transmission relation to each of the eccentric shafts is provided to maintain the eccentrics in each cylinder assembly 180.degree. out of rotary phase. An even number of such cylinder assemblies, adjacently 180.degree. out of phase, may be assembled to form the mechanism of this invention. The mechanism is useful as an internal or external combustion engine, compressor or prime mover.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: August 30, 1988
    Assignee: Institute of Gas Technology
    Inventor: David T. Marks
  • Patent number: 4767289
    Abstract: A pump header for use in a peristaltic pump. The pump header includes a flexible outer tube, a collapsible-expandable inner tube, a pressure control valve member and a one-way-flow valve member. The inner tube is disposed within a passageway of the outer tube. The pressure control valve member and the one-way-flow valve member are responsive to positively-pressured liquid at an inlet to the inner tube and allow the liquid to enter a passageway of the inner tube from which the fluid can be pumped by the action of the peristaltic pump. The positively pressured liquid can only pass from the one-way-flow valve member.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: August 30, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Patti L. Parrott, James B. Howell
  • Patent number: 4762476
    Abstract: An oil well subsurface pump comprising a housing for reciprocal disposition with a working barrel and having one end thereof adapted to be secured to the lowermost end of a sucker rod, or the like, and the opposite end thereof in open communication with the fluid reservoir in a well bore, a ball check valve carried by the housing and disposed within a ball chamber having a stop at one end for limiting the movement of the ball member in one direction and the opposite end open to the well fluid, resilient sealing assemblies interposed between the outer periphery of the housing and the inner periphery of the working barrel and slidable with respect to the barrel during a pumping operation, longitudinally disposed passageways provided in the housing and extending from the ball chamber to a position beyond the upper limit of the sealing assemblies to provide communication through the housing to the annulus between the housing and the working barrel for passage of the well fluid from the fluid reservoir to the annu
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: August 9, 1988
    Inventor: Richard L. Turner
  • Patent number: 4762201
    Abstract: A scavenging system (10 or 110) for hydraulic circulation installations. A pump (25) delivers the hydraulic fluid (19) which is thereafter collected in a sump (18 or 18A) that is to be maintained essentially dry. A reservoir (28), independent of the sump (18 or 18A), is supplied for storing the requisite volume of hydraulic fluid (19) for the installation with which the scavenging system (10 or 110) is to be used, and a pump (25) supplies the fluid (19) from this reservoir (28). At least one pickup head assembly (22) is disposed within each sump (18 or 18A), and a float valve (45) is mounted within each pickup head assembly (22). The float valve (45) acts, in response to the level of the fluid (19) within the sump (18 or 18A), to open and close communication through a scavenging conduit system (38) that connects between the sump (18 or 18A) and the reservoir (28).
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 9, 1988
    Assignee: General Motors Corporation
    Inventor: Marvin J. Malik
  • Patent number: 4761118
    Abstract: The invention disclosed relates to the art field embracing positive displacement reciprocating compressors of the type featuring hydraulic drive, and sets out to simplify the construction of such units, rendering them more functional at the same time. Four coaxial bulkheads are adopted, set apart one from the next by three cylinder barrels, and three pistons which are mounted to a common rod and reciprocated thus, each in its respective barrel; the central piston and barrel are of either greater or smaller diameter than the remainder. Hydraulic oil from a power pack driving the compressor flows alternately into chambers which are occupied by the rod, and bounded at one end by one of the pistons of smaller or greater diameter.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: August 2, 1988
    Inventor: Franco Zanarini