Patents Represented by Attorney, Agent or Law Firm Tuttle
  • Breathing mask having a transducer movable parts coupled to a speaking diaphragm for speech transmission
    Patent number: 4718415
    Abstract: A breathing mask includes a carrier which has an inhalation passage and an exhalation passage and a passage over which a speaking diaphragm is extended for speech transmission from the interior of the mask to the exterior. In accordance with the invention an electrostatic transducer has a moving part which is coupled directly to the speaking diaphragm to provide for improved speech transmission.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: January 12, 1988
    Assignee: AKG Akustische u.KinoGerate Gesellschaft m.b.H.
    Inventors: Reinhard Bolnberger, Werner Fidi
  • Sewing machine having a waste material container
    Patent number: 4718364
    Abstract: A sewing machine has a trimmer and a waste container for trimmed waste fed to it through a guide groove. The waste container that needs little space and also enlarges the workpiece support surface for the sewing material is designed and arranged so that the trimmed waste reaches it over short transport paths. For this purpose, a portion of the sewing machine includes the waste container located beside the trimmer and reaching directly to it, whose top is aligned with a base top plate covering the rest of the base of the sewing machine and together with it forms a support surface for the sewing material.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: January 12, 1988
    Assignee: Dorina Nahmaschinen GmbH
    Inventor: Rolf Kessler
  • Muffler for brake booster system
    Patent number: 4716814
    Abstract: A muffler device for use in a brake booster system in which there are inserted in an air suction passage cylindrical noise shielding member having at one end an outer flanged portion extending radially outwardly and at the other end an inner flanged portion extending radially inwardly, the circumferential wall of the noise shielding means being defined with an air suction opening; and cylindrical noise absorbing member with a gas permeability being inserted into the inner circumference of the circumferential wall, in such a manner that noises as generated at the valve mechanism during the operation of the brake booster may effectively be prevented from propagating to the outside by aid of the noise shielding member and the noise absorbing member together.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: January 5, 1988
    Assignee: Jidosha Kiki Co., Ltd.
    Inventor: Mutsuro Yamakoshi
  • Video compression method
    Patent number: 4717957
    Abstract: The invention relates to a video compression method to be employed in connection with the conditional replenishment transmission and receiving method. In the transmitter there are detected such areas of the image that are changed with respect to the previous image, and the picture information representing the occurred changes, along with the addresses of the respective picture areas, is sent into the transmission channel. In the receiver there is reconstructed the new image on the basis of the previous image and the picture information representing the occurred changes.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: January 5, 1988
    Assignee: Valtion teknillinen tutkimuskeskus
    Inventors: Harry Santamaki, Juha Leppanen, Pontti Haikonen, Ilkka Korhonen
  • Sewing machine with workpiece holder for securing initial seam stitches
    Patent number: 4716846
    Abstract: A sewing machine which is used with manual feed movement of a sewing material has a holding device for the material that is effective during the first phases of stitching of a seam section, by which the first thread knot is held from becoming undone when short thread ends and a large feed movement are used. In a first embodiment, the holding device includes a holding foot, by a drive mechanism in addition to a presser foot which is periodically moved up and down by a drive mechanism, and a controllable drive for the holding foot. In a second embodiment, the holding device includes a presser foot, a compression spring and a decoupling mechanism by which the presser foot can be disconnected from its drive mechanism.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: January 5, 1988
    Assignee: Pfaff Industriemaschinen GmbH
    Inventors: Franz Schneider, Herbert Wenz, Gunter Link
  • Thermochromic composition
    Patent number: 4717710
    Abstract: A thermochromic composition comprising (1) an electron-donating chromogenic material, (2) a 1,2,3-triazole compound, (3) a weakly basic, sparingly soluble azomethine or carboxylic acid primary amine salt, and (4) an alcohol, amide or ester serving as a solvent.
    Type: Grant
    Filed: January 3, 1985
    Date of Patent: January 5, 1988
    Assignees: Matsui Shikiso Chemical Co. Ltd., Sanrio Company, Ltd.
    Inventors: Goro Shimizu, Yoshimi Hayashi
  • Method and apparatus for detecting distance and forming image of object in turbid medium using laser
    Patent number: 4717252
    Abstract: A method and system is used for detecting the presence of measuring the distance to and producing an image of, objects which, while being strongly absorbing or reflecting themselves, are hid from sight in a medium which is strongly dampening due to light dispersion, such as submersed submarines. The method provides, in addition to detecting the reflection from the surface of the object, a full acquisition of the variation of the backscatter of scanning laser pulses by the medium surrounding the object, with laser pulse transmitters operating with a much larger pulse duration, being usable for this purpose.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: January 5, 1988
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventors: Thorsteinn Halldorsson, John Langerholc, Sigmund Manhart, Ernst-August Seiffarth
  • Lubricating device for sewing and embroidering machines
    Patent number: 4715303
    Abstract: A lubricating device for a revolving lock stitch shuttle of machines such as sewing and embroidering machines comprises a shuttle body which has a hub portion which surrounds its associated shuttle arbor and which lies adjacent a bearing mounting for the arbor. The hub portion is hollow and defines a lubricating oil chamber between it and the associated bearing and a gap between the shuttle hub portion and the associated bearing is bridged by a fixed ring member which is carried on a bracket which is secured to the bearing. The ring member has an opening therethrough providing an access for a nozzle tube for feeding oil from an external reservoir to the hub recess from when the oil is advanced by the centrifugal force of the rotation of the shuttle to the periphery of the shuttle.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: December 29, 1987
    Assignee: Pfaff Industriemaschinen GmbH
    Inventors: Edgar Busch, Lothar Schilling, Klaus Ziegler
  • Planing machine for the mining of minerals
    Patent number: 4715658
    Abstract: A planing machine for the mining of minerals particularly a coal plane which has a planing chain guided on the filling side, and comprises two individual planes with plane bodies interconnected by an articulated connection, a sword plate of each plane body grips under a conveyor chute. The plane bodies are each supported on each plane against a conveyor chute sidewall on the coal face side by means of a horizontal, centrally mounted roller. Vertical bearing pins of the rollers form floating shafts for the plane bodies. Sword plates are individually connected to the planing chain and are not interconnected by otherwise used hinges. This makes for a good ability to negotiate curves and adaptability when traversing curves as well as troughs and saddles.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: December 29, 1987
    Assignee: Halbach & Braun Industrieanlagen
    Inventors: Gert Braun, Ernst Braun
  • Lung-controlled diaphragm valve
    Patent number: 4715371
    Abstract: A lung-controlled diaphram valve for respirator masks includes a device for creating a positive pressure in the interior of the mask, the device includes a tilting lever which by spring elements can be moved from a dead center position into a first pressure position exerting a force on the diaphragm or into a second disconnecting pressure position lifting the diaphragm off the valve lever. During the entire respiration cycle a positive pressure continuously prevails in the interior of the mask, it being prevented also that, by the movement of the diaphragm, the tilting lever can be brought into a stable disconnecting position. In addition, after use, an intentional disconnecting of the positive pressure is possible. To this end it is provided that the diaphragm has a tappet for the tilting lever which protrudes into the outer chamber of the valve.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: December 29, 1987
    Assignee: Dragerwerk A.G.
    Inventor: Hans Haas
  • Overflow trap for anesthetics
    Patent number: 4715370
    Abstract: An overflow trap on a reservoir for liquid anesthetics with at least one inlet conduit for filling and an overflow conduit for overflow which both open at its side wall. The entering of anesthetic liquid from a feed tank through the inlet and the overflow of anesthetic due to shifts or rocking of the liquid level is prevented. For this purpose, the inlet conduit and the overflow conduit are slanted toward the bottom of the reservoir and they have openings close to a wall of the reservoir which is opposite to the inlet and the overflow openings of the conduits.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: December 29, 1987
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Ulrich Altner, Wolfgang Falb, Martin Ryschka, Carl-Friedrich Wallroth
  • Piston and cylinder unit
    Patent number: 4715264
    Abstract: The invention relates to piston and cylinder unit with a regulating valve for controlling the speed of the piston. The regulating valve has an open position in which it allows free passage of a fluid to the piston and a choking position in which it reduces the rate of such flow for influencing the speed of the piston. Furthermore there is at least one sensor responding to a given position of the piston and designed to change over the setting of the regulating valve. The sensor is an inductive, electrical or magnetic contactless sensor. The regulating valve has a setting unit electrically operated by the regulating valve so that the regulating valve is switched between its open and choked positions.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: December 29, 1987
    Inventor: Kurt Stoll
  • Automatic paper roll pasting apparatus for rotary presses
    Patent number: 4715922
    Abstract: An automatic paper roll pasting apparatus, for sequentially and continually feeding a continuous strip of paper, or a paper web, to a rotary press from a plurality of paper rolls, having a paper roll support capable of accommodating at least two paper rolls, a mechanism for measuring a value relating to the diameter of a paper roll newly mounted on the paper roll support, and a mechanism for controlling the revolution of the new paper roll, and constructed so that the revolution of the new paper roll is caused to agree with a desired revolution calculated from the revolution of a paper web which is currently fed to the rotary press, thus enabling the new paper roll to be pasted to the running paper web automatically.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: December 29, 1987
    Assignee: Tokyo Kikai Seisakusho, Ltd.
    Inventors: Mamoru Hayashi, Hideo Kawamori
  • Pocket air velocity gauge
    Patent number: 4713972
    Abstract: In a pocket air velocity gauge, in order to expand the controlled, flow-dependent pointer deflection and the measuring scale to an angular range of at least 270.degree., the air flows through an inlet opening (22) on the back of a housing into a ring channel (12) extending around a pointer shaft (6) and over about 360.degree. and leaves it through a lateral outlet opening (13). In so doing, the air moves an air vane (37) fastened to the pointer shaft (6) counter to a restoring spring force in proportion to the velocity of the air. The ring channel (12) is provided with a cross section widening in the flow direction, and the pointer shaft (6) has assigned to it a second restoring spring which becomes active only after a certain angle deflection of the pointer.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: December 22, 1987
    Inventor: Hans-Dieter Stockburger
  • Air drier apparatus
    Patent number: 4713094
    Abstract: An air drier apparatus including a housing having an open bottom end, a drying agent storage casing disposed within the housing and a bottom end cover blocking the open bottom end of the housing is provided with a securing plate member which is positioned within the bottom portion of the drying agent storage casing and has a lock nut incorporated thereon. A single bolt member engages the lock nut and secures the bottom portion of the storage casing to the bottom end cover. A moisture sensing member is disposed in position within either the housing or bottom end cover in such manner as to monitor the moisture content of the compressed air existing in a purge chamber defined between the housing and the drying agent storage casing. A belt-like fixing member is placed around the outer circumference of the housing for mounting the air drier apparatus.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: December 15, 1987
    Assignee: Jidosha Kiki Co., Ltd.
    Inventors: Ichiro Yanagawa, Yuji Wachi
  • Engine and drive belt cooling system for an all terrain vehicle
    Patent number: 4712629
    Abstract: The present invention relates to an improvement in the cooling efficiency of an air cooling and vent device for use with a belt drive type power transmission for an all terrain vehicle, wherein cooling air introduced into a belt drive casing by an air suction fan built integrally with a drive pulley of the transmission is forced out of an air outlet provided in the middle position between the drive pulley and a driven pulley to the atmosphere by the suction effect of a cooling fan of the engine.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: December 15, 1987
    Assignee: Suzuki Motor Company Limited
    Inventors: Ken Takahashi, Chiaki Hirata, Yuji Ishioka
  • Light construction plug for coke oven doors
    Patent number: 4713148
    Abstract: The invention relates to a light construction plug for coke oven doors of horizontal chamber coking ovens, consisting of box-like, heat-resistant, metallic hollow bodies which are secured on the door body and can be filled with insulating material of low specific gravity. According to the invention, it is provided that in the longitudinal direction of the chamber, between the door body (1) and the chamber filling (5), one or more detachably interconnected hollow bodies (6, 7) are arranged and that for the formation of vertical gas pressure equalizing channels (10) between the chamber walls (11) and the hollow bodies (6, 7) the lateral outer walls (8, 9) thereof have concavities directed inwardly toward the center of the chamber.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: December 15, 1987
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Ludwig Offermann
  • Electronic valve control for sloughing machines
    Patent number: 4712682
    Abstract: An electronic control method and apparatus for controlling the sloughing strokes in sloughing machines for coal and other minerals, has a stroke frequency generator which supplies recurrent signal codes to parallel-connected inlet and outlet stroke generators. Power amplifiers are connected to the stroke generators for amplifying command pulses therefrom, the pulses being supplied to inlet and outlet valves of the machine. A signal code is supplied from the stroke frequency generator through a divisor in a freely selectable clock sequence to the outlet stroke generator or alternatively the divisor releases the command pulse from the outlet stroke generator to the outlet valve in a freely selectable clock sequence.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: December 15, 1987
    Assignee: M.A.N.Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventor: Ulrich Reilard
  • Method of producing a transparent photocathode
    Patent number: 4713353
    Abstract: A method of producing a transparent photocathode comprises applying a multi-layer wafer to a carrier service so that the wafer projects beyond the carrier on all sides, effecting a chemical denudation on the substrate and after the chemical denudation on the substrate removing at least the overhanging parts of the multi-layer wafer mechanically. Chemical denudations are advantageously made by etching. The substrate comprises a gallium arsenide. The subsequent layers in the active photocathode semiconductor layer are applied by an epitaxial process.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: December 15, 1987
    Assignee: Licentia Patent-Verwaltungs GmbH
    Inventors: Rudolf Forster, Suso Weber, Hans-Jurgen Pyka
  • Wrist watch band
    Patent number: D293302
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: December 22, 1987
    Assignee: Fabrique Ebel, Societe Anonyme
    Inventor: Eddy Schoepfer