Patents Represented by Attorney, Agent or Law Firm McGlew & Tuttle, P.C.
  • Patent number: 6129112
    Abstract: A flow regulator that always guarantees the same rate of flow independently from the admission pressure is provided. This is achieved by a piston (26), which is mounted movably in the direction of flow and is loaded by an elastic element (29) in the direction opposite the direction of flow, being arranged in a housing (10) of the flow regulator. An annular space around the piston (26) is reduced due to the movement of the piston (26) in the direction of the flow. This flow regulator has a strong throttling action in the case of high admission pressure and a weak throttling action in the case of low admission pressure, so that the rate of flow is always maintained at a constant value.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: October 10, 2000
    Inventors: Otto Huthmann, Andre Huthmann
  • Patent number: 6126441
    Abstract: Buccal tube consisting of a body (1) with a base section (2) which is to be attached to a tooth face, and of at least two tubular elements providing seats for corresponding archwires, which features a groove (5) on the vestibular side into which orthodontic instruments can be introduced to position the base section (2) on the corresponding tooth.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: October 3, 2000
    Inventor: Federico Vincenzo Tenti
  • Patent number: 6125112
    Abstract: A multistage ATM switch, method and system with switch elements with two input/outputs switchable to two other input/outputs. The switch elements are arranged connected to define a matrix with an input stage an output stage and at least one an intermediate stage. The multi stage switch inputs are presented with address information for data, the address information indicates requests for one of several outputs of said the multi stage switch. The requests are broadcast into the multi stage switch. At each stage the requests are remembered, merged and propagated to connected switching elements of a next stage. At each output of the multi stage switch grants a request if traffic can be accepted and propagates the requested grant to connected switching elements. At each switching element, upon receiving a request grant, the request grant is propagated to an input that requested the granted output port.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 26, 2000
    Assignee: 3Com Corporation
    Inventors: G. Paul Koning, Brian Ramelson
  • Patent number: 6099614
    Abstract: This invention covers the method and equipment for the continuous or discontinuous addition of reaction/inoculation materials necessary for desulphurization or the production of ductile iron obtainable during the passage of the base iron through a basin containing the chamber for melting, vaporizing and distributing the reaction-inoculation materials into the melt (e.g. magnesium vapor-Ferrum Silicon). The treatment can be conducted continuously for unlimited or freely definable quantities of iron.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 8, 2000
    Inventor: Ettore Bennati
  • Patent number: 6064673
    Abstract: A communications system and method utilizes peer-to-peer architecture to provide "quality" real-time communications in a non-guaranteed, packet-based network. Quality real-time communications in a non-guaranteed, packet-based network is achieved by (i) minimizing packet loss, (ii) minimizing latency, and (iii) minimizing the artifacts caused by packet loss. The system distributes control of functionality to the peer communication devices, thereby eliminating the need for a central processor to establish peer-to-peer communications. Each of the peer communication devices has the capability to respond to variations in network loading to provide quality real-time communications.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: May 16, 2000
    Assignee: 3Com Corporation
    Inventors: Pehr Anderson, Chris Gadda
  • Patent number: 6056365
    Abstract: A center armrest with resettable overload protection. The center armrest is attached so as to be capable of pivoting via a bearing into the substantially horizontal position, protruding in the region of the backrest. A supporting frame is provided including a core. The supporting frame (2) may include at least two elements (2a, 2b) spaced from one another, between which an elastic linkage (5) is disposed.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: May 2, 2000
    Assignee: F. S. Fehrer GmbH & Co. KG
    Inventor: Manfred Messner
  • Patent number: 6051195
    Abstract: The present invention pertains to a synthesis gas heat exchanger unit with one synthesis gas radiant cooler (1), two synthesis gas convection coolers (23), one crude gas-clean gas heat exchanger (4), one crude gas-inert gas heat exchanger (5), and one dust separator (11). These devices are preferably arranged vertically or slopingly. The crude gas heat exchangers (4, 5, 23) are designed as single-flue, double-flue or multiple-flue heat exchangers. They are elastically supported via claws (10) and are equipped with an electric heater (9). A soot blower system (13) is associated with each flue (4.1, 4.2) as well as (5.1, 5.2) and right hand flue and left hand flue (23.1, 23.2) at the crude gas inlet. Soot blowers (31) are likewise provided on the connection lines (2, 6), and mass flow controllers (7) are provided in the lower connection lines (6).
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: April 18, 2000
    Assignee: Man Gutehoffnungshutte Aktiengesellschaft
    Inventors: Wolfgang Deeke, Wolfram Gruhlke, Jurgen Heering, Klaus Kohnen
  • Patent number: 6003359
    Abstract: Index-feed deep drawing apparatus comprising a feeding device for intermittently indexing a long-sized work piece, wound in a hoop, in the longitudinal direction, and a plurality of punch/die sets disposed in the feeding direction of the work piece and adapted to sequentially carry out deep drawing at least on the work piece, in which an annealing device adapted to allow the work piece to pass is provided between the deep drawing punch/die sets so as to subject the work piece to intermediate annealing treatment.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: December 21, 1999
    Assignee: Institute of Technology Precision Electrical Discharge Works
    Inventors: Shoji Futamura, Chikara Murata
  • Patent number: 6003689
    Abstract: A card cage ejector combination is provided including a card cage or housing for receiving printed circuit boards. The housing has an opening for insertion of the PCBs. The ejector mechanism is formed preferably with a single sheet metal piece including a lever/handle portion, a pivot portion, a PCB engagement element and a transmission portion extending from the pivot portion to the PCB engagement portion. The card cage includes a pivot support which is formed by protruding a portion of the sheet metal of the card cage. The pivot portion of the ejector then cooperates with the protruding pivot support and the ejector level can pivot about the pivot support. A fixing portion is also formed from the sheet metal of the card cage. An opening is provided in the card cage adjacent to the pivot support and adjacent to the fixing portion. The PCB engagement portion of the ejector lever is inserted into the opening and the pivot portion is mounted on the pivot support.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: December 21, 1999
    Assignee: 3Com Corporation
    Inventors: Paul J. Babineau, John W. Milley
  • Patent number: 5999948
    Abstract: One or more form descriptions are expressed in the form description language (FDL) and are entered into an FDL file. The FDL file is then registered with a dynamic forms software module using a dynamic forms API. Upon registration, the file is parsed and software "specification" objects containing a data from the file or added to the internal catalogue of compiled form descriptions. When the application requests a form to be displayed, the dynamic form software finds the entry for the form in the catalogue, constructs the form using the information from the specification objects, and displays the information to the user. The form construction process includes the selection of widgets, the binding of each widget to a data source, the layout and alignment of all widgets, and the construction of rule objects that respond to the users interaction with the form and validate the users input.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: December 7, 1999
    Assignee: 3Com Corporation
    Inventors: William Joseph Nelson, Paul B. Greizerstein
  • Patent number: 5960696
    Abstract: It is intended to dispense with the pipe welding work, thereby improve the pipe mounting performance and prevent contamination which results from welding, and elimination the waste of oil.A spigot portion 34 is mounted upright integrally in the center of the upper end portion of a piston 17, the base end of a piston rod 18 is fitted on the outer periphery of the spigot portion 34, and the outer periphery of the base end of a pipe 41 is press-fitted into an upper hollow part of the spigot portion 34.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: October 5, 1999
    Assignee: Kayaba Kogyo Kabushiki Kaisha
    Inventors: Susumu Niwa, Mineo Tanahashi
  • Patent number: 5941004
    Abstract: A muzzle-loading or breech-loading rifle which comprises a bolt (27), which is mounted, rotating, on the rear of the receiver casing of the barrel and rotates between a position of opening and one of closing. In the bolt is mounted a percussion means (30), which is arranged in line with the barrel when the bolt is in the position of closing. A cocking mechanism (25) is mounted in the receiver casing (21') in parallel with the said barrel and turned towards the percussion means (30) when this is in line with the barrel.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: August 24, 1999
    Assignee: Pedersoli Davide & C. di Pedersoli S.N.C. Pierangelo E Silvana
    Inventor: Pierangelo Pedersoli
  • Patent number: 5936098
    Abstract: This invention concerns a method for the production of a 3-arylindoline compound represented by the general formula ##STR1##
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: August 10, 1999
    Assignee: Tokyo Tanabe Company Limited
    Inventors: Nobuyuki Yasuda, Shin-ichi Kunii, Kouichi Kazama
  • Patent number: 5925881
    Abstract: A measuring cell (1) for the analysis of a gas sample by infrared absorption, with a measuring path (2) accommodating the gas sample, which has opposite limiting surfaces (7, 9) enclosing the gas sample, wherein a focusing optical component (8) is present at the first limiting surface (7) and an infrared radiation source and a radiation receiver (4) are arranged in the area of the second limiting surface (9) such that a measuring beam (13) emitted by the radiation source (3) is directed onto the radiation receiver (4) through the optical component, shall be improved such that it be suitable for the detection of gases with a long absorption path. A mirror surface (12) active for the measuring path (2) is present in the area of the second limiting surface (9), and the geometry of the optical component (8) is dimensioned such that there is an at least fourfold pass of the measuring beam (13) in the measuring path (2), utilizing the reflection of the beam on the mirror surface (12).
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: July 20, 1999
    Assignee: Dragerwerk AG
    Inventor: Gunter Wahlbrink
  • Patent number: 5917984
    Abstract: The invention relates to a management-capable splice cassette for the telecommunication and data technique, for receiving carrier shells for two glass fibers each. A housing is provided with a cable connection device and a carrier is connected to said housing. The carrier shells are connected to the carrier in a rotatable manner. The management-capable splice cassette is exchangeable with other splice cassettes and can in particular be inserted in prior art splice cassette housings instead of the conventional splice cassettes. The invention provides an available reserve length and a small constructional height as well as an economical and simple handling. The carrier shells are disposed in at least two adjacent receiving portions and stacked upon each other, each of carrier shells is rotatably supported into a latch position at one of their sides.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: June 29, 1999
    Assignee: Krone Aktiengesellschaft
    Inventors: Volker Roseler, Clemens Rogge, Klaus Klein
  • Patent number: 5554423
    Abstract: The present utility model pertains to a tubular element for the formation of bags for the vacuum-packing of products, consisting of an inner layer or film (14) having thread-like elements (15), which extend along the length of the tubular element and are intended to be relief on at least on inner surface of the resulting bag and to define among themselves channels (16) for the evacuation, by suction, of air from the bag at the time of using the bag for the vacuum-packing of a product.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: September 10, 1996
    Inventor: Luigi F. Abate
  • Patent number: 5040566
    Abstract: Mixing tap for hot and cold water fitted with a mixing ball with inlet holes matched with the separate hot and cold water feed pipes and outlet holes delivering the mixed water to a spout. At least the part of the ball with holes is made of a ceramic material and interacting with seals also made of ceramic material and coordinated to the hot and cold water feed pipes. Each ceramic seal is supported by an elastomer bellow type element acting both as a spring pushing the seal against the ball and as a radial packing around the seal itself.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: August 20, 1991
    Assignee: Galatron S.r.l.
    Inventor: Alessio Orlandi
  • Patent number: 5027674
    Abstract: A steering column for motor vehicles with a steering shaft that is movable in the axle direction and held by a positive connection notching. The notching is formed between a jacket barrel (1) placed so that it is fixed from turning, and a solid body thrust bearing (2) and consists of toothed gearing segments (4, 5) on the width of the jacket barrel (1) and anchored toothed elements (6, 7) that are movable on the thrust bearing (2) with at least a gear tooth (9, 10). Wedge bodies (11, 12) are provided that by means of a control are movable in the bolt position brought about by the notching. The gearing tooth portions on the jacket barrel (1) include at least two segments (4, 5) developed with the same tooth spacing, that nevertheless are arranged around a half gear segment displaced with respect to each other.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Lemforder Metallwaren AG
    Inventors: Frank Nolte, Norbert Bauch
  • Patent number: 5018555
    Abstract: A pre-press tube is composed of several lengths of tube with a plug-in end at one end and a plug-in socket at the other opposite end. Plug-in end and plug-in socket are chosen to be conical in such a way, that when the plug-in end is pressed into the plug-in socket, not only a form - and force locking arrangement is obtained, but even a tight connection of the material by means of a lattice like polymerization of the contact surfaces is obtained. As a result a tight, solid connection of tubes with a smooth surface is achieved.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: May 28, 1991
    Inventor: Manfred Hawerkamp
  • Patent number: D423589
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: April 25, 2000
    Assignee: Asahi Seiko Co., Ltd.
    Inventor: Noboru Ichihara