Patents Represented by Attorney, Agent or Law Firm Tuttle
  • Modular piezo valve arrangement
    Patent number: 5881767
    Abstract: A piezo valve arrangement for gas mixers or respirators, which is built up modularly from individual valve elements. At least one individual valve element, which is provided in its housing with a pressurized gas channel and a gas discharge channel, is arranged between a connection plate with a pressurized gas connection and a gas discharge connection, on the one hand, and a closing plate, on the other hand, wherein the direction of the gas flow in each valve element is from the pressurized gas channel via a metering screw, a metering channel, and a piezo vibrating element held freely vibrating on one side with a seal to the gas discharge channel.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: March 16, 1999
    Assignee: Dragerwerk AG
    Inventor: Ralf-Ernst Loser
  • Apparatus for the dry treatment of a fabric
    Patent number: 5881581
    Abstract: An apparatus for the dry treatment of a fabric having two enclosures for stocks of fabric, and means for the gradual in-feed and drawing out of the fabric from the enclosures. There are pneumatic means blowing air into a passage which comprises a first portion communicating one enclosure with a space and a second portion communicating another enclosure with the same space. A cylindrical drum is located in this space and adapted to rotate alternately in both directions, such that the fabric entering the space through one of the portions leaves it through the other portion, after partially wrapping the drum.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: March 16, 1999
    Assignee: Turbang Prototips, S.L.
    Inventor: Jaume Anglada Vinas
  • Process for preparing a low-friction ball joint, as well as low-friction ball joint
    Patent number: 5882137
    Abstract: A process for preparing a low-friction ball joint and a ball joint prepared according to this process are presented, wherein a ball pivot with a joint ball made integrally in one piece with it is fitted into an insert ring via the intermediary of a bearing shell, which is cylindrical on the outside at least in some areas, the insert ring is subsequently screwed with its external thread into the internal thread of a housing in a self-locking manner, and the insert ring is then additionally tightened in the housing.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: March 16, 1999
    Assignee: Lemforder Metallwaren AG
    Inventors: Karl-Heinz Epp, Gerhard Ey, Klaus Broker, Martin Wellerding
  • Sewing or embroidering machine
    Patent number: 5881662
    Abstract: A sewing or embroidering machine with an electronic control device including a microcomputer. Access authorization for the individual modes of operation of the sewing and embroidering machine can be changed by the buyer of the machine. The assignment of access authorization to individual modes of operation of the sewing machine is stored in a first write-read memory in the form of a table, access authorization table. The first write-read memory is connected with the microprocessor and with a first input device such that after a corresponding operating function is called up or requested by a person authorized to do so, the access authorization can be correspondingly changed for the mode of operation in question by the input means.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: March 16, 1999
    Assignee: G. M. Pfaff Aktiengesellschaft
    Inventors: Eduard Bastian, Wilfried Halfmann, Bernd Maue
  • Filter for an electrochemical measuring cell
    Patent number: 5879527
    Abstract: A filter for an electrochemical measuring cell with a filter housing and a filter material contained therein is improved, with a simple design, such that interfering gas components cannot reach the measuring cell from the gas mixture. This is accomplished by the filter housing being formed of a porous, gas-permeable material.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 9, 1999
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Herbert Kiesele, Frank Mett
  • Vehicular height control device
    Patent number: 5878852
    Abstract: A sudden change in the repulsive force of a piston rod and the resulting excessive increase of the vehicular height are to be suppressed.A small-diameter portion 10A and a large-diameter portion 10B are formed in the inner periphery of a pump cylinder 10, and a valve cover 21 is provided at the lower end of a pump rod 9 so as to accommodate an inlet valve 6 therein. The valve cover 21 has a discharge port 6a which when positioned within the small-diameter portion 10A is closed and which when positioned within the large-diameter portion 10B is opened to a pump chamber 12.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: March 9, 1999
    Assignee: Kayaba Kogyo Kabushiki Kaisha
    Inventors: Tatuya Masamura, Masaru Mishima
  • Decorative lighting string with expandable, shrinkable and three-dimensional unit
    Patent number: 5876111
    Abstract: An expandable and shrinkable decorative lighting string arrangement with a plurality of lamp bulbs, lamp bases, lamp holders, all connected by wires to form a lighting string. The lighting string is connected to a plurality of stands by a clamp. An axis connector forms a support for the ends of the stands, and the ends of the stands are movably connected to the axis connector to form an expandable volume and a shrunken volume. The expandable volume attains a decorative structure with the stands spaced from each other. The shrunken volume positions the stands adjacent to each other. A locking device locks the stands to the axis connector to cause the stands to form the decorative structure.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: March 2, 1999
    Inventor: Jeng-Shyong Wu
  • Gas delivery means for respirators and anesthesia apparatus
    Patent number: 5875783
    Abstract: A gas delivery arrangement for respirators and anesthesia apparatus includes a radial flow compressor (10) with bent-backwards blades. The compressor impeller (11) is arranged in a stationary housing (14). The gas inlet (12) is located in the area of the axis of rotation of the compressor impeller (11) and the blades (13) extend from the gas inlet (12) in the area of the axis of rotation to the circular outer edge of the compressor impeller (11) and end there nearly tangentially. The free gas flow path between the outer edge of the compressor impeller (11) and the inner wall of the housing (14) passes over into the gas outlet (15) of the gas delivery arrangement in the direction of gas flow. The compressor impeller is driven by an electric motor and has a radius of up to 40 mm and a mass moment of inertia of up to about 4.times.10.sup.-6 kg.times.m.sup.2.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: March 2, 1999
    Assignee: Dragerwerk AG
    Inventor: Gotz Kullik
  • Protective device on printing presses
    Patent number: 5875714
    Abstract: A protective device is provided on printing presses with a two-dimensional protective cover. The cover is mounted pivotably around a pivot axis in a press frame and shields a cylinder pair from access by an operating personnel and grants access to the said cylinder pair after pivoting off from the cylinder pair. The cylinder pair comprises a rubber blanket cylinder and a plate cylinder. A separate protective cover is provided for each of the cylinder pairs of a printing tower with "U" and "N" (type) bridge elements arranged alternatingly one on top of another.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: March 2, 1999
    Assignee: Maschinenfabrik Wifag
    Inventors: Peter Winkler, Max Egger, Andres Miescher
  • Treatment device, particularly for a transverse sizing machine
    Patent number: 5876784
    Abstract: The present invention pertains to a treating device 1, especially a rotating transverse gluing mechanism for high-speed, register mark-related paper or film webs 2. The movements of the transverse gluing mechanism 1 are synchronized with the web 2, and the transverse gluing mechanism has an independent synchronous drive 6 with a drive motor 7 and a regulating unit for this purpose. The electronic regulating unit compensates variations in the synchronism of the running web 2.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: March 2, 1999
    Assignee: Planatol Klebetechnik GmbH
    Inventor: Theo Hesselmann
  • Process for determining the mechanical properties of the respiratory system of a respirated patient and device for carrying out the process
    Patent number: 5876352
    Abstract: A process and device for determining mechanical properties of a respiratory system of a patient connected to a respirator, wherein a short-term occlusion of the patient's airways is performed during an inspiration phase and/or an expiration phase. Initiating of the occlusion is at different points in time within the breathing cycle and during a plurality of breaths. The respiratory flow and the inhaled or exhaled volume of the patient is determined at the beginning of this occlusion. The airway pressure is also measured during this occlusion. The change occurring over time in the airway pressure during a measurement time falling within the occlusion time is determined. Also determined is the course over time of the change occurring over time of the muscle pressure of the patient from the measured values. The course over time of the muscle pressure is calculated by integrating this course over time.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: March 2, 1999
    Assignee: Dragerwerk AG
    Inventor: Dieter Weismann
  • Device to stack and collect banknotes with the possibility of returning them
    Patent number: 5876033
    Abstract: A device to stack and collect banknotes with the possibility of returning them. It comprises conveyors (18) to take every banknote at the level of the inlet (12) and to drag the buntnote and spread it on a support surface (14) over a central opening (14'), and a presser (19), set by the central opening of the support surface (14), that can be moved from a raised position over the support surface to a first work level causing the passage of every banknote under the support surface between, the presser and holders (17); and to a second work level to cause the banknotes to be discharged below the holders. The device moreover comprises a mechanism to return the banknotes after horizontal movements of the support surface (14).
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: March 2, 1999
    Assignee: Officina Meccanica L.A.R. di Lonati Lorenzo & C. S.n.c.
    Inventor: Pietro Antonio Lonati
  • Stagger cut teeth
    Patent number: 5876202
    Abstract: The flutes of a drill bit (1) are constituted by helical portions (4) and rectilinear portions (5).
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 2, 1999
    Assignee: Jean-Claude Rouiller
    Inventor: Pierre Berlin
  • Emergency-reporting system for rescue operations
    Patent number: 5874897
    Abstract: A personal emergency-reporting system for recognizing the site of an emergency with simultaneous warning of the nearest emergency physician/medical personnel. A portable patient data unit is provided which contains a satellite-supported global positioning system, which communicates with a patient data acquisition and evaluation unit via a computer and control unit, wherein the latter is connected to an emergency call transmitter. The transmitter sends patient data and the patient's position to an emergency call receiver in the case of an emergency. An automatic emergency-reporting system is provided by the present invention in order to make possible a rapid and specific rescue operation to a person whose health is acutely at risk.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: February 23, 1999
    Assignee: Dragerwerk AG
    Inventors: Hans Jurgen Klempau, Frank Rochlitzer
  • Arbitration system using linked table
    Patent number: 5875309
    Abstract: A computer network system containing a concentrator with a backplane that has a plurality of lines. The backplane contains data lines and control lines for managing and organizing the transfer of data between modules in the concentrator. The system contains an intelligent bus arbiter system that allow the selection of transmitting modules to occur at the same time as actual data transfer is going on between other modules. The bus arbitration system is provided for determining a sequence of bus access. A memory is provided for building a table comprising entries. Each of the entries represents a module slot identification number. Each entry also has an entry link portion which links a given entry to another entry. The system also includes arbiter logic cycling through or sequencing through and reading the table from one entry to another entry based on the entry link portion.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: February 23, 1999
    Assignee: 3Com Corporation
    Inventors: Frank A. Itkowsky, Cary B. Robins, John Ziegler, Shirish B. Dandekar
  • Sheet type key top
    Patent number: 5873454
    Abstract: A sheet type key top of a push button switch which is disposed over a switch contact used for the input portion of a portable electric appliance or a machine control portion or the like, and through which the underlying switch is depressed to turn it on or off. A film on key tops is formed with a multi layered elastic film (4), and a display portion printed layer (3) is completely covered with the protective layer (4). Then, thermoplastic fine powder (5) capable of heat fusing is added to the display portion print layer (3) and/or to the protective layer (4), thereby the film and the display portion are integrally united by heat fusing a thermoplastic substance constituting key tops and the thermoplastic fine powder through heat generated during molding process. Further, stress intercepting zones of concave or convex shapes are disposed at distances between adjacent keys to prevent error activation.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: February 23, 1999
    Assignee: Plymatech Co., Ltd.
    Inventor: Tsuyoshi Nakamura
  • Process and device for carrying out a welding process on thermoplastic material webs
    Patent number: 5873965
    Abstract: In a process and a device for carrying out a welding process on thermoplastic material webs, the value of the pressing force (F.sub.i) of a pair of pressure rollers is determined as a measured value representing the weld seam thickness and is used as the actual value of the controlled variable of a welding process regulating unit, and it is compared with a corresponding set value. The feed speed (V) of the welding device is used as the correcting variable of this regulating unit by increasing the speed in the case of decreasing weld seam thickness and decreasing the speed in the case of increasing weld seam thickness to compensate a possibly existing deviation.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: February 23, 1999
    Assignee: G.M. Pfaff Aktiengesellschaft
    Inventor: Peter Greller
  • Refractory lining in the transition of a gasifier to the waste heat boiler
    Patent number: 5873329
    Abstract: A refractory lining in the transition section of a gasifier to the waste heat boiler with claws/brackets for supporting refractory shaped bricks. Each claw is suspended on hooks in a pipe branch and is protected from overheating by cooling tubes. The refractory lining is supported in the tube bundle by brackets, which are arranged one on top of another and are welded to webs tube-web-tube welding of the tube bundle. The lower bracket at the cooling tube bundle and the horizontal tube wall are protected against clogging with slag by a refractory mass with a drip nose. Expansion joints are provided between the shaped brick segments under the brackets, whereas ring-shaped fiberboard segments are inserted above the claw.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: February 23, 1999
    Assignee: MAN Gutehoffnungshutte Aktiengesellschaft
    Inventors: Jurgen Heering, Klaus Kohnen, Duane Brooker
  • Combined bottle and cap
    Patent number: D406243
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: March 2, 1999
    Assignee: Stefano Ricci S.p.A.
    Inventor: Stefano Ricci
  • Ornament
    Patent number: D406545
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: March 9, 1999
    Inventor: Petra Deginther