Patents Represented by Attorney Albert L. Jeffers
  • Patent number: 4958442
    Abstract: For a measuring device, a boom, rotatable arm, guide arm and cross beam form a parallel crank drive which is mounted so as to be swivelable about the vertical axis of a supporting column. A clamping device for the rotatable arm makes it possible to use only a single drive for both a coarse swivel motion and a precision swivel motion for precision adjustment in order to home in on the measuring position. Measuring probes are attached to measuring support bars that are mounted on the cross beam, and are movable in vertical direction.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: September 25, 1990
    Assignee: J. M. Voith GmbH
    Inventor: Roland Eckhardt
  • Patent number: 4953389
    Abstract: A method and an apparatus for determining the surface tension between a gas and a liquid, and wherein the surface tension of a film established on the surface of a bubble in a medium may be calculated. A liquid medium such as an aqueous medium is provided in a chamber. The container is constructed so that an air bubble may be formed in the liquid medium in the chamber and a film of a material, such as a surfactant material, can then be formed at the air-liquid interface. The chamber is also constructed so that the pressure of the liquid medium may be varied. On increasing the pressure of the liquid medium, the bubble volume and its surface area are reduced. Thus, the interfacial film is compressed, and alternatively, when the pressure of the liquid medium is reduced, the film is expanded by the expanding of the bubble. The chamber provides a complete enclosure so that the liquid medium and the surfactant are not exposed to the atmosphere.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: September 4, 1990
    Assignee: University of Calgary
    Inventor: Samuel Schurch
  • Patent number: 4934787
    Abstract: A mode scrambler capable of converting the mode distribution of light transmitted through an optical fiber into a stationary mode distribution. The mode scrambler comprises a plurality of cylinders arranged in a predetermined arrangement, and a step index optical fiber of 100 .mu.m or above in core diameter and 0.4 or above in numerical aperture wound around and across the plurality of cylinders. The step index optical fiber is wound at least in one 8-shaped wind at least across the two cylinders of the plurality of cylinders. At least the diameter of one of two cylinders across which the step index optical fiber is wound in an 8-shape is not less than ten times and not more than fifty times the core diameter of the step index optical fiber, and the diameter of the other cylinder is not less than that of the former cylinder.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: June 19, 1990
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kiyoshi Ichimura, Hiroshi Okada, Masatoshi Toda, Satoshi Takahashi, Masayoshi Komiya
  • Patent number: 4934400
    Abstract: An irrigation control system includes a soil moisture sensor (S) that controls the common lines of various irrigation valves (VA) being controlled by a conventional irrigation time based controller (TC). The sensor is in a first zone of primarily shallow rooted plants. A timer (TR) is activated whenever the soil moisture sensor allows the first zone to be watered. The timer (TR) increments a counter (CR) which closes after a pre-set number of irrigation cycles of the first zone having been completed. When the counter (CR) close contacts (C), then the irrigation valves feeding a second zone of primarily deep rooted plants are activated.
    Type: Grant
    Filed: January 18, 1989
    Date of Patent: June 19, 1990
    Inventor: Kenneth J. Cuming
  • Patent number: 4935727
    Abstract: A device for measuring the quantity of light in a tank is disclosed, including three level sensors housed within a tank in a predetermined relative position. Alternative processors are disclosed for processing information supplied by the level sensor, wherein the information depends on the liquid level sensed by each of the sensors. An indicator, controlled by the processor, indicates the quantity of liquid contained in the tank.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: June 19, 1990
    Assignee: Fiat Auto S.p.A.
    Inventors: Stefano Re Fiorentin, Piero Tonello
  • Patent number: 4931291
    Abstract: Feeds comprising unicellular algaes whose cell wall are disrupted are provided as the feeds for larvae of crustaceans and shellfishes to be cultivated. With such feeds, it is possible to achieve the rates of survival and growth equivalent to, or higher than, those achieved with untreated diatom.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: June 5, 1990
    Assignee: The Nisshin Oil Mills, Ltd.
    Inventors: Eiji Kojima, Kiyohiro Kitagawa, Akira Seto
  • Patent number: 4930437
    Abstract: Formed on the doctor element, between a chamber mouth and the paper web respectively the backing roll supporting it, is an application space which relative to the doctor element, that is, on the entrance side of the paper web, is defined by a baffle plate and kept at a pressure which exceeds atmospheric pressure. Between the baffle plate, this application space 2 is subdivided toward the doctor element (coating blade) 1, creating between the end of the vane 2 and the coating blade 1 a gap whose width ranges between 4 mm and 10 mm. This makes it possible to produce a flawless coating application also in the case of very light basis application weights.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: June 5, 1990
    Assignee: J.M. Voith GmbH
    Inventor: Martin Eckhard
  • Patent number: 4925253
    Abstract: An automatic method for preventing wheel skidding during braking and acceleration is disclosed, in which an instantaneous rotational wheel speed is sensed and an instantaneous absolute speed variation is calculated therefrom. During braking, the brake is released automatically when rotational speed either reduces so that speed variation is greater than a predetermined maximum permissible value, or when rotational speed approaches zero with the vehicle still moving. The brake is applied during braking when rotational speed increases to a predetermined time-varying value after brake release. During acceleration, the brake is applied when rotational speed increases so that speed variation is greater than the aforementioned maximum permissible value, and is released when rotational speed falls to a predetermined time-varying value after the brake application. The brake remains unaffected when speed variation is less than the maximum permissible value.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: May 15, 1990
    Inventor: Bror Lennart A. Swiden
  • Patent number: 4924834
    Abstract: The device comprises substantially an integral connection block for connection to an air manifold and to an engine wall; in said block there is provided a plurality of pairs of main air feed holes, one hole of each pair being controlled by a throttle valve; in the block there is also provided a series of supplementary idling air ducts the passage of which is controlled by a solenoid modulating valve housed in a suitable seat in the block. On the block there is also provided a series of seats for the injectors, and a pair of ducts for feeding fuel to the injectors and for its recirculation. Finally, on the block there are provided further seats for a fuel pressure regulator and for a pneumatic actuator arranged to control said throttle valves by way of a transmission.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: May 15, 1990
    Assignee: WEBER s.r.l.
    Inventors: Silverio Bonfiglioli, Rino Stagni
  • Patent number: 4923220
    Abstract: The disclosures relates to a tube coupling (10) for a tube (11) having a body (12) with open ended throughway (13) to receive the tube and a collet (21) in the open end of the throughway having resilient arms (23) engaging a tapered cam surface (20) in the body to clamp the ends of the arms against a tube extending through the collet into the body to lock a tube in the body.The body has a cylindrical outer surface and a cylindrical cover (30) encircles and is slidable along the body. One end of the cover has an end wall (32) extending across the end of the body opposite the open end of the throughway with an aperture (33) through which the tube extends. The other end of the cover has an internal annular projection (35) which snaps over the end of the cylindrical body to retain the cover on the body while permitting the cover to slide linearly along the body.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: May 8, 1990
    Assignee: John Guest Limited
    Inventors: John D. Guest, Bo Harde
  • Patent number: 4923122
    Abstract: An electromagnetic injector featuring an anchor integral with a plunger and which is attracted, against the action of flexible means, towards a core having an electric winding; the injector itself presenting a casing housing the core and plunger, and which is divided, at the anchor, into two independent elements connected coaxially integral with each other, and between which is inserted a spacer element of nonmagnetic material, such as titanium or brass.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: May 8, 1990
    Assignee: Weber S.r.l.
    Inventors: Francesco Morini, Paolo Bortolotti
  • Patent number: 4917136
    Abstract: This invention relates to the supply piping system of the process gas for various types of thin-film making and fine pattern dry etching process, and more particularly to the process gas supply system, which makes it possible to form high quality thin films and to perform high quality etching.Specifically, when there are a unit in operation with process gas supplied and a unit not in operation with no process gas supplied in a process gas supply piping system, supplying the process gas to two or more process units from a cylinder cabinet piping system, this invention provides a gas supply piping system, where the process gas supply piping line to the process unit not in operation can be purged with purge gas all the time and where gas flows all the time through all of gas supply piping lines to eliminate the stagnation of gas.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: April 17, 1990
    Assignee: Tadahiro OHMI
    Inventors: Tadahiro Ohmi, Kazuhiko Sugiyawa, Fumio Nakahara, Masaru Umeda
  • Patent number: 4913812
    Abstract: The active support substance and the adsorbent for chromatography, which have got all of the properties desired for affinity chromatography, can be constituted by a porous copolymer comprising gel copolymer which is principally composed of (A) a glycidyl monovinylester or glycidyl monovinylether and (B) alkyleneglycol divinylester, and combination groups to be bound to ligands through a covalent bond, the (A) component being crosslinked by the (B) component, and the combination groups being bound to epoxy groups of the (A) component.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: April 3, 1990
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Soyao Moriguchi, Yoshito Nakayama, Hiroshi Suzuki, Tae Ishii, Seiji Shioda, Isao Kaiho
  • Patent number: 4911620
    Abstract: A scroll-type hermetic compressor is disclosed including a compressor mechanism having a fixed scroll member. The fixed scroll member includes a plate portion that is subject to forces causing deflection thereof. A housing cover plate is attached to the back surface of the fixed scroll member so as to define a discharge pressure chamber therebetween for exposing a partial area of the back surface to compressed refrigerant fluid. The discharge pressure chamber also serves as a discharge muffler. Also disclosed is a method of assembling a compressor wherein a compressor mechanism is mounted to a top cover plate before the top cover plate is attached to an open-ended shell to form a hermetically sealed housing. The compressor mechanism is suspended from the top cover plate and extends into the interior of the housing.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: March 27, 1990
    Assignee: Tecumseh Products Company
    Inventors: Hubert Richardson, Jr., Thomas R. Barito
  • Patent number: 4911828
    Abstract: A sorting apparatus for sorting fiber suspensions heavily laden with rubbish and other contaminants, which sorter has two successive sorting units each having a ring-shaped strainer space, which are likewise successive, and an accepts space with a rotationally symmetric strainer between the accepts space and strainer space. The first sorting unit is pressurized above atmospheric pressure; diluting water is fed to the second unit strainer space; and a rotating plate is mounted between the first and second sorting units to control the flow between the strainer spaces.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: March 27, 1990
    Assignee: J.M. Voith GmbH
    Inventors: Walter Musselmann, Reimund Rienecker, Herbert Kinzler
  • Patent number: 4909011
    Abstract: The disclosure relates to a hollow section elongated structural member comprising three parallel spaced channel section elements (13) with three panels (11) extending between the respective pairs of elements to form a hollow section member. The edges of the panels have edge formations (17) which are received in the channels, each edge formation being shaped to conform to a side wall (15) and adjacent base part (14) of a channel. Clamping members (18) are provided for each channel having a clamping face including a main part (19) flanked by said faces (21) to act in co-operation with the base and side wall of the channel (13) to clamp the respective edge formations of a pair of panels therein and screws (23) are provided for securing the clamping members to the channel to lock the edge parts of the channels in the channels and thereby create a rigid structue between the channels and panels.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: March 20, 1990
    Inventors: Colin J. Freeman, Corbett E. Jarvis
  • Patent number: 4909475
    Abstract: A valve comprising a body having a cylindrical sliding seat and an opening for the passage of air; a plunger sliding axially inside the aforementioned seat, for regulating the aforementioned air supply opening; and an electromagnet, the core of which presents a rod fitting through an axial hole on the plunger. According to the present invention, the plunger is connected elastically to the rod by means of two springs, each designed to exert elastic force on the plunger in the opposite direction to that of the other spring; regulating means being provided for enabling predetermined preloading of both springs.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: March 20, 1990
    Assignee: Weber S.r.l.
    Inventors: Innocenzo Triolo, Gino Baldi
  • Patent number: 4909904
    Abstract: A headbox features in the machine-wide suspension channel, following in the flow direction of the suspension, a tubular distributing grid, an equalization channel, a turbulence generator, and a nozzle. Connected to the suspension channel is a device for dispensation of diluting liquid into the suspension. The amount of diluting liquid is adjustable across the machine width in contingence on the position of the basis weight cross profile variation in the produced paper web. The diluting liquid is dispensed directly before a choking point of the turbulence generator, into the suspension channel, in order to thereby prevent hydraulic disturbances, specifically cross flows in the suspension flow in the nozzle.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: March 20, 1990
    Assignee: J.M. Voith GmbH
    Inventor: Gernot Kinzler
  • Patent number: 4907951
    Abstract: A pick-up tube for removing foreign particles from the lubricant supplied to hermetic motor-compressors of the type including an outer housing, a lubricant sump in the bottom of the housing, and a rotatable shaft vertically disposed in said housing is provided. The pick-up tube includes an annular groove disposed circumferentially around the pick-up tube, wherein foreign particles found in the lubricant are deposited in the groove as the particles move up the pick-up tube as a result of the centrifugal force created by the rotating of the shaft.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: March 13, 1990
    Assignee: Tecumseh Products Company
    Inventor: Ronald R. Wisner
  • Patent number: 4907561
    Abstract: An internal combustion engine having a flywheel attached to the crankshaft externally of the crankcase. A permanent magnet is affixed to the flywheel proximate the periphery thereof and has a flat exposed face toward the crankcase. The flywheel has fan blades attached thereto for generating a current of air which flows generally radially away from the flywheel and is directed across the engine cylinder by a blower housing. A solid state ignition module is attached to the crankcase axially spaced from the flywheel toward the crankcase so as to be situated substantially free of the air flow generated by the flywheel. The ignition module has a ferromagnetic core with legs extending parallel to the crankshaft and lying in a plane perpendicular to a radius of the crankshaft. The core legs each have a flat end face disposed parallel to the flat face of the permanent magnet, and are adjustable with respect thereto.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: March 13, 1990
    Assignee: Tecumseh Products Company
    Inventor: William C. Kandler