Patents Represented by Law Firm Hill, Van Santen, Steadman & Simpson
  • Method of preparing urethane foam articles
    Patent number: 5141684
    Abstract: In a method of preparing a urethane foam article having a high density outer surface layer, of the type wherein a plastic liquid containing isocyanates, polyols, a catalyst, a blowing agent, an assistant and other additives is poured into a mold through a one-shot molding process, a certain type of catalyst is added for causing the isocyanates and the blowing agent to create a difference in gas evolving reaction between an inner part and an outer part of the plastic liquid in the mold so as to form a high density layer on the outer surface of a urethane foam article.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 25, 1992
    Assignee: Tokyo Sheet Co., Ltd.
    Inventors: Kimio Yoshimura, Satoshi Narumi
  • Fluidization arrangement for an electrostatic powder coating device
    Patent number: 5140935
    Abstract: A fluidization and conveyor arrangement for electrostatic powder coating devices. The arrangement includes a container pivotable by 180.degree. on a carrying frame, and a cover, having a fluidization plate. A powder discharge tube and a compressed air tube pass through the cover and into the container. A transport package, for example a sack filled with powder, is introduced into the container. The container is then closed with the cover, and is pivoted by 180.degree. to an operating position, in which fluidization and discharge of the powder may be affected.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: August 25, 1992
    Assignee: Wagner International AG
    Inventor: Johann Gruber
  • Method and circuit arrangement for determining the quality of virtual connections through an asynchronous transfer mode switching equipment
    Patent number: 5142653
    Abstract: For determining the quality of virtual connections between input lines and output lines of an ATM switching equipment, the plurality of accepted and output message cells is separately acquired in a call-associated manner in the ATM switching equipment on the basis of cell headers of the message cells accepted via the input lines and, respectively, output to the output lines. In response to the cleardown of a respective virtual connection, the loss rate of the message cells is then calculated as a measure for the quality of the respective virtual connection from the previously, separately-acquired plurality of accepted and output message cells.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: August 25, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Horst Schefts
  • Level sensor which has high signal gain and can be used for fluids particularly chemically corrosive fluids
    Patent number: 5142267
    Abstract: A PTC-resistor which is a temperature dependent electrical thermistor of semiconductor ferro-electric ceramic which is provided with power leads and serves as a sensor element is directly fused into glass. The power leads are welded to metal coatings formed on the PTC-resistor which are stable at the temperature occurring when the PTC-resistor is fused. The metal coatings are made of aluminum which are formed by aluminum silk screened metallizations which have a thickness of 50 .mu.m or more.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: August 25, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Siegfried Fellner, Gerhard Bisail
  • X-ray arrangement comprising an X-ray radiator having an elongated cathode
    Patent number: 5142652
    Abstract: An x-ray radiator has an elongated cathode for emitting an electron beam having an elongated cross section, the electrons of the electron beam being accelerated onto an anode for generating x-radiation. The cathode is formed by a geometrical member completely filled with electron-emitting material, and the material of the cathode contains at least one element from the group of rare earths and at least one element from the group of precious metals or boron.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 25, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Reichenberger, Gerhard Brandner
  • Variable inlet spraying apparatus
    Patent number: 5141162
    Abstract: A liquid spray gun whih includes an improved flow rate control. The improved flow rate control results from a valve in the supply inlet line which can restrict the flow of liquid material from the supply container. The ability to vary the flow rate is improved because, while the electromagnetic motor is maintained at maximum electrical input power, inlet flow can be accurately regulated. Maintaining maximum input pressure ensures optimum spray performance. Finer atomization at lower flow rates can be achieved from the improved flow control system.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: August 25, 1992
    Assignee: Wagner Spray Tech Corporation
    Inventors: Richard Gunderson, Richard L. Soderlind
  • Power semiconductor component with emitter shorts
    Patent number: 5142347
    Abstract: In symmetrically blocking thyristors and in diodes, a lowering of the storage charge at the anode side is desirable in some applications. This is achieved by shorts lying in the emitter zone of the anode side. These shorts are formed between zones of a first conductivity type embedded in the emitter zone and zones of a second conductivity type. The zones of the second conductivity type are deeper than those of the first conductivity type and partially overlap the zones of the first conductivity type. Given low current density, these shorts are ineffective; however, they are effective at high current densities. Shorts of this type can also be used at the cathode side in specific diodes that are to be utilized as free-wheeling diodes for GTO thyristors, and can also be employed in asymmetrical GTO thyristors at the anode side.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: August 25, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Peter Voss
  • Optocoupler
    Patent number: 5142342
    Abstract: An optical coupler has a light-emitting semiconductor component and a light-receiving semiconductor component that are connected to one another via an electrically-insulating, light-transmissive coupling and provide a voltage output, particularly for the drive of field-effect transistors. The light-receiving semiconductor component is a semiconductor chip in which a plurality of photoelements are integrated connected in series.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: August 25, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl-Ulrich Stein
  • Vertical axis centilevered pump provided with a stabilizing by-pass flow
    Patent number: 5141390
    Abstract: A vertical-axis cantilevered-shaft centrifugal pump having an impeller within a pump casing, an intake end in fluid communication with a fluid supply, and a dischage end, in which is provided an integral by-pass. The pump is operated at a speed representing a relatively high level of pump efficiency to produce a relatively stable fluid flow from the fluid supply through the casing. The first portion of the fluid flow from the casing is directed through the discharge end of the pump, while a second portion of the fluid flow is diverted from the casing back to the fluid supply. The second diverted portion may be returned to the supply through a plurality of outlets located on volutes of the pump casing. The discharge from the pump can be controlled using a variable control valve adjacent the discharge end of the pump.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 25, 1992
    Inventor: Walter D. Haentjens
  • Woven slide fastener stringer
    Patent number: 5140725
    Abstract: A woven slide fastener stringer has a web section and a woven filament section defining a longitudinal edge portion and including successive loops formed from a woven plastic filament and each having upper and lower legs and is provided with a plurality of tensioning warp threads and a plurality of loop fastening warp threads both interposed between binding warp threads and adapted to draw the upper and lower legs closely together and hold the loops stably in place on the stringer.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: August 25, 1992
    Assignee: Yoshida Kogyo K.K.
    Inventor: Haruo Matsushima
  • Method of and apparatus for manufacturing slide fasteners
    Patent number: 5138763
    Abstract: A method of and apparatus for manufacturing slide fasteners of selected product lengths from an elongate continuous stringer chain, the method comprising selecting predetermined fastener component parts from among a plurality of such respective component parts which differ in type, form, material and color, feeding and applying the selected parts one at a time to the stringer chain. The apparatus reducing the method to practice comprises operating units arranged to selectively feed and apply the component parts under computer program control.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: August 18, 1992
    Assignee: Yoshida Kogyo K.K.
    Inventors: Hiroshi Mizuno, Kazuki Kuse, Shunji Akashi, Hiroshi Yoshida, Yozo Okada, Tatsuo Ito
  • Heterojunction bipolar transistor and the manufacturing method thereof
    Patent number: 5140399
    Abstract: A heterojunction bipolar transistor formed as a collector top or emitter top type. This heterojunction bipolar transistor can operate at high speed and can be fabricated into a semiconductor integrated circuit with ease. The manufacturing method thereof is also disclosed.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: August 18, 1992
    Assignee: Sony Corporation
    Inventor: Hiroji Kawai
  • Patterned adherent film structures and process for making
    Patent number: 5139804
    Abstract: Plastic web materials are provided which are selectively treated in a patterned manner with corona discharge. Methods for making and using such webs are provided. In one aspect, such a web is utilized as the inside surface of a container structure. During meat cook-in, such structure selectively in treated areas adhere to highly proteinaceous material cooked therein.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: August 18, 1992
    Assignee: Plicon, Inc.
    Inventor: Kenneth Hoffman
  • Method of preparing urethane foam articles
    Patent number: 5139713
    Abstract: In a method of preparing a urethane foam article having a high density outer surface layer, of the type wherein a plastic liquid containing isocyanates, polyols, a catalyst, a blowing agent, an assistant and other additives is poured into a mold through a one-shot molding process, while maintaining the mold at a temperature in the range of from 15.degree. to 40.degree. C., a temperature sensitive catalyst is added for causing the isocyanates and the blowing agent to create a difference in chemical reaction between an outer portion of the plastic liquid contacting the mold surface and an inner portion of the plastic liquid held out of contact with the mold surface, thereby retarding the foaming of the outer portion than that of the outer portion.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 18, 1992
    Assignee: Tokyo Sheet Co., Ltd.
    Inventors: Kimio Yoshimura, Satoshi Narumi
  • Buckle
    Patent number: 5138751
    Abstract: A buckle for connecting opposite ends of a belt or the like is disclosed. the buckle comprises a plug member and a socket member releasably engageable therewith. The socket member has a central through-opening for accommodating a locking member and a spring member which has a plurality of integrally formed strip-like spring elements arranged to provide uniform distribution of pressure over the locking member.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: August 18, 1992
    Assignee: Yoshida Kogyo K.K.
    Inventors: Yutaka Shima, Ryukichi Murai
  • Device for cutting and/or slitting a travelling sheet or web of material to form box-type packages
    Patent number: 5138921
    Abstract: A device for cutting and/or slitting travelling webs or sheet-like board material includes a pair of coacting rotary circular knives mounted on each side of the path of the web with the two peripheral cutting edges being in contact with one another. The device includes the use of a flat spring to provide an arrangement for biasing one knife against the other knife in the axial direction to provide the desired elastic pretension therebetween.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: August 18, 1992
    Assignee: Peters Maschinenfabrik GmbH
    Inventor: Gerhard Winckler
  • Method of performing an ion exchange of optical glass
    Patent number: 5139557
    Abstract: This invention relates to a method of performing an ion exchange of optical glass to produce an axial gradient index material having a good linear distributiion by bringing a glass body containing a monovalent cation component into contact with a medium containing a monovalent cation component and exchanging these cation components under a predetermined condition.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: August 18, 1992
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Shigeo Kittaka, Hiroshi Koshi, Yoshikazu Kaite, Minoru Toyama, Noboru Akazawa
  • Sleeve for a medical instrument, particularly a dental handpiece, and the method of manufacture
    Patent number: 5139422
    Abstract: A sleeve that has the shape seen in the longitudinal direction that deviates in cross section and/or has an outside diameter that changes from a shape with a rotational symmetry to a shape with a non-rotational symmetry and has a ridge extending at least a portion of the length of the sleeve to form ledges between the ridge and adjacent curved surfaces. A method for manufacturing the sleeve includes inserting a workpiece in a die having the desired contour for the outer surface of the sleeve, heating the material and subjecting the material to internal pressure to deform the workpiece into the contour of the die to form the sleeve.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: August 18, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reinhard Straihammer, Werner Schuss
  • Drug therapy for alcohol abusers
    Patent number: 5140032
    Abstract: A novel composition and/or method for the treatment of alcoholism, wherein the composition comprises a therapeutically effective dosage of disulfiram and a drug that affects the neurological system in a manner similar to alcohol, preferably a habit-forming or addictive drug. The method comprises administering a composition to alcoholics that combines therapeutically effective dosages of disulfiram and a habit-forming or addictive drug into a single composition. Preferably, the habit-forming or addictive medication is an anti-anxiety drug and is a member of the benzodiazepine family. Most preferably, the habit-forming, anti-anxiety drug is diazepam.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: August 18, 1992
    Inventor: Thomas E. Radecki
  • Apparatus for metered filling of toner from a reservoir into the developing station of a printer or copier device
    Patent number: 5139176
    Abstract: An apparatus for metered filling of toner from a reservoir into the developing station of an electrophotographic printer device comprises a metering drum in the exit region of the reservoir. A hollow conveyor helix is situated in a conveyor tube above the metering drum. The conveyor helix extends parallel along the metering drum into the toner reservoir. The conveyor helix and the metering drum are coupled in terms of drive corresponding to the metering power.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: August 18, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Reindl, Albert Eben