Patents Assigned to Sulzer Brothers Limited
  • Fuel injection system
    Patent number: 4834055
    Abstract: The injection fuel system employs a hydraulically operated piston for pressurizing and expelling a primary fuel suspension through an injection valve into the combustion chamber. A high pressure piston pump which is driven off the camshaft delivers diesel oil to operate the piston. In addition, the high pressure piston pump provides pressurized diesel oil to open and close the injection valve for the primary fuel during an injection phase and also supplies pressurized diesel oil to operate the injection valve for the ignition oil. The hydraulically operated piston can be adjusted in dependence upon the speed of the engine with a corresponding adjustment in the pressure used to regulate the injection valve for the ignition oil.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 30, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Anton Steiger
  • Projectile-catching brake for a loom
    Patent number: 4832089
    Abstract: The projectile-catching brake employs at least one resilient brake shoe which is made of metal for use with plastic projectiles. Where used with steel projectiles, the brake shoe may be provided with an insert of plastic material which can be replaced from time-to-time. In some embodiments, the resilient brake shoe is formed of a hollow section member to define a cavity through which air or other coolant may flow. In still other embodiments, bent stampings are used to form the brake shoes. A brake shoe body of metal may also be mounted by spaced apart resilient plastic strips.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: May 23, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Peter Riesen, Walter Gruber
  • Hip joint implant
    Patent number: 4828566
    Abstract: The shank is provided with a recess in the proximal medial region and a U-shaped wire mesh structure is secured within the recess. The wire mesh structure provides for an ingrowth of bone tissue at the medial narrow side of the shank and an absorption of shear micro movements between a bone and the implant. The mesh structure can be secured in place by rivets or by weld seams.
    Type: Grant
    Filed: February 4, 1987
    Date of Patent: May 9, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Peter Griss
  • Valve
    Patent number: 4827975
    Abstract: The check valve employs a helical tension spring which is connected at one end to the valve lid on the axis of the valve lid and at the opposite end via a ring on the axis of the valve body. Wedge-shaped elements are provided in the lid to engage with an annular groove in the spring and similar wedge-shaped elements are provided in a hub of the ring to engage with the second end of the spring. A rubber member may also be inserted within the windings of the spring to reduce the flow cross section through the valve body.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 9, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Anton Steiger
  • Steam plant and method of controlling same
    Patent number: 4825654
    Abstract: The steam plant is operated so that the temperature of the steam entering the water separator is compared with the saturation temperature of the steam in the separator in order to produce a temperature difference signal for control of a changeover element. When the temperature difference is less than or equal to zero, the changeover element is activated to deliver a signal corresponding to the level of water in the separator for the control of the plant. When the temperature difference signal is greater than a critical value, the changeover element is actuated to deliver a signal corresponding to the temperature of the steam downstream of the separator for the control of the plant. When the temperature difference is greater than zero and less than the critical value, the changeover element is retained in the previously activated state.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: May 2, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Cenek Svoboda
  • Fuel injection system
    Patent number: 4825842
    Abstract: The fuel injection system employs a relief valve which is connected to the fuel chamber in the injection valve containing the primary fuel. The relief valve opens towards the end of the primary fuel injection phase to connect the fuel chamber to a discharge duct. Further, the relief valve permits a flushing of the fuel chamber after a changeover from operation with a coal slurry suspension to operation with diesel oil as the primary fuel. A selector valve, a pair of three way valves and multiple reservoirs are provided to accommodate switching over of operation from coal slurry to diesel oil.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 2, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Anton Steiger
  • Endoprosthesis for a hip joint socket
    Patent number: 4822367
    Abstract: The endoprosthesis for a hip joint socket is provided with a plastic socket body, a metallic outer shell and a screw thread on the surface of the shell. The screw thread has a constant pitch with each turn of the screw thread having a length (L) of from 4 to 12 millimeters, a base width of from 0.15L to 0.2L and a crest width of from 0.025L to 0.05L.
    Type: Grant
    Filed: February 4, 1987
    Date of Patent: April 18, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Karl-Gerhart Stuhmer
  • Loom shedding motion
    Patent number: 4817676
    Abstract: In a loom shedding motion device, the pivoting motion of cam follower levers driven by cams is transmitted by way of thrust rods, bent levers to the leaves of the loom. Extending from a central bearing of each lever are arms on the motion input side of the lever and the motion output side of the lever. The arms are cranked or offset relatively to a bearing lug of the bent lever so that pivot points or arrangements at the ends of the arms and a center bearing are disposed substantially on a straight line, so that, because of the transmission forces in the shedding motion, the pivot experience torques which are operative around the bearing center and whose resultant is disposed vectorially on the bearing axis. The bent levers are therefore supported on the spindle or bearing shaft without tilting, so that the operation is free from wear and little lubricant is needed.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: April 4, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Peter Hans
  • Chain for use in device for preventing rupturing of a pipeline
    Patent number: 4813225
    Abstract: The chain for pressing a plurality of annular segments against a pipeline includes a plurality of links which are interconnected by pivot pins. At least some of the pivot pins are provided with eccentrics which are disposed within the inner links so that upon turning of a pivot pin using a suitable tool, the tension on the chain can be adjusted. Nuts are rigidly secured at the ends of the pivot pins carrying the eccentrics to facilitate turning of these pivot pins.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 21, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Hans Fricker
  • Electrode boiler and an insulator therefor
    Patent number: 4812619
    Abstract: The electrode boiler is provided with an electrical insulator of ceramic material which is provided with a layer of fluoroplastic material to protect against water deposits thereon. The protected layer may be formed of polytetrafluoroethylene and is of a thickness of from 20 to 50 .mu.m.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: March 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Albert Kunzli, Kurt Schutz
  • Weft yarn store for a loom
    Patent number: 4811762
    Abstract: A weft yarn store for a loom comprises a drum adapted to receive a weft yarn supply, a winder for winding weft yarn on the drum and means for retaining the weft yarn at the runoff end of the drum upon the completion of picking. A retaining element of the retaining means is adjustable by means of a controllable drive in the peripheral direction of the drum. When this element moves together with the running-off yarn during the braking thereof, the yarn can be retained smoothly. The weft yarn can therefore be metered accurately and smoothly.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: March 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Robert Bucher, Paul Lincke
  • Electrode boiler and an insulator therefor
    Patent number: 4812618
    Abstract: The insulator for mounting the electrode within the vessel of the boiler includes a hollow moulding of fluoroplastic material and a support member for transmitting mechanical forces. The support member is in the form of a hollow tube which is slidably received at opposite ends in an annular recess of the moulding.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: March 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Albert Kunzli, Kurt Schutz
  • Metal microfilter
    Patent number: 4812236
    Abstract: A metal microfilter foil is provided with a supporting structure made up of two layers which are deposited on a rear side of the foil. The first layer comprises a plurality of connecting elements of column or web shape which widen at the top to form enlarged portions which merge together to form the second layer leaving open macropores. The continuous supporting structure provides large pores as compared with the micropores of the foil and offer considerable stability.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: March 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Christian Ehrsam
  • Giver for a gripper loom
    Patent number: 4807670
    Abstract: The giver is used with a gripper loom having a stationary weft supply and includes a tongue in the gripper casing and a clamping element on a wide side of tongue so devised that clamping element bears to some extent on the underside of the gripper casing. At the entry and clamping zone of the yarn, the clamping element takes the form of a thin flat spring strip which follows the curvature of the tongue and which is secured thereto at one end while at a central region the clamping element presses a clamping surface of the gripper casing. When a member moves the tongue away from the gripper casing, the clamping element also disengages from the clamping surface, so that dirt between the clamping surfaces of the tongue element and casing can drop away or be extracted.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: February 28, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Anton Egloff, Lothar Kohler, Franco Bianchi
  • Artificial vessel
    Patent number: 4804382
    Abstract: The artificial vessel has a membrane of at least semi-permeable bio-inert synthetic material with a monolayer of endothelial cells on the internal surface and a layer of smooth elastic fiber-generating muscle cells on the outer surface. The membrane may be made pore-less or may be made with a network of opened micropores filled with an aqueous gel to provide a smooth internal surface on which the endothelial cells may be coated.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: February 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Marko Turina, Peter Bittmann
  • Artificial vessel
    Patent number: 4804381
    Abstract: The arterial vessel is made of a microporous membrane having pores which are filled with a permeable gel or which are closed over by a thin porous layer. A monolayer of endothelial cells is provided on the internal surface for exposure to the blood flow and smooth muscle cells are layered on the outer surface for increasing the viability of the live cells on the membrane and to impart elasticity. A support structure formed of a braided construction of monofilaments of inert material can be provided to limit dilation of the vessel.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: February 14, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Marko Turina, Peter Bittmann
  • Method of making a metal bone implant
    Patent number: 4800639
    Abstract: The metal bone implant is constructed with thin sheets of superplastic material which are deformed into irregular contours. The sheets are welded to the solid base element of the implant and thereafter deformed outwardly under fluid presure to an irregular shape.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: January 31, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Otto Frey, Manfred Semlitsch
  • Microfilter foil and method of producing same
    Patent number: 4801379
    Abstract: The microfilter foil is made of an inorganic substance such as metal with opened pores. Each pore is formed with a channel which increases in cross-section from the crest so as to obviate clogging. The foil is produced by exposure of a photosensitive layer of paint or lacquer with the use of an interference pattern produced by monochromatic and coherent light. A skin of inorganic material is produced on the photosensitive layer and portions of the skin are thereafter removed from the coated teeth in order to produce the pores in the subsequently formed foil.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: January 31, 1989
    Assignee: Sulzer Brothers Limited
    Inventors: Christian Ehrsam, Thomas Ruegg
  • Weff yarn feed for a weaving loom
    Patent number: 4799516
    Abstract: A weft yarn insertion apparatus for a weaving loom, the apparatus including a main fluid nozzle for inserting a length of weft yarn into the warp shed, a pair of nip rollers, for positively feeding the weft yarn into the main nozzle, the nip rollers being located immediately upstream of the main nozzle to enable the nip rollers to propel the leading end of the yarn through the nozzle and into the shed, and a weft yarn guide immediately upstream of the nip rollers, the guide being movable to selectively introduce and withdraw the weft yarn beteween the pair of nip rollers. The rollers are driven so as to project the weft yarn into the shed at a speed in excess of the given speed normally imparted to the yarn by the main nozzle when the yarn is introduced between the rollers. When withdrawn, the rollers permit the nozzle to project the yarn at the given speed.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: January 24, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: John D. Griffith
  • Weft yarn store for a loom
    Patent number: 4799517
    Abstract: A weft yarn store (1) for looms (3) stores weft yarn (2), the yarn coming from a package disposed outside the store, on a stationary drum (13) having a first winding zone (135) and a second winding zone (136). While a first winder (12) winds yarn (21) on to a first winding zone (135) so that a yarn supply (21) is permanently available, the second winder (14) intermittently or variably unwinds yarn from the first winding zone towards a second winding zone (136). In a preferred operation of the store (1) together with a loom (3), yarn which is from the second winding zone (136) and which was deposited there by the second winder (14) is picked into the loom. After consumption of this supply and until the termination of the same pick, yarn is unwound directly from the supply in the first winding zone (135) by means of the second winder (14) and supplied to the loom (3) without intermediate storage.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: January 24, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Robert Bucher