Holding Pawl Lifter Patents (Class 74/155)
  • Patent number: 6223871
    Abstract: A cable drum has a rotating winder fitted in a mounting and a frequency converter fitted on the winder. At least one socket outlet of the winder is electrically coupled to the frequency converter and is supplied with an electrical spatial frequency. The integration of the cable drum and frequency converter makes it easier to transport the equipment by reducing weight and the number of pieces.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: May 1, 2001
    Assignee: Wacker-Werke GmbH & Co., KG
    Inventor: Michael Steffen
  • Patent number: 6045090
    Abstract: The present invention relates to a device for reducing the vibrations of the rotor of a rotary-wing aircraft, having an oscillating mass (M1), elastically held radially on the hub (4) of the rotor in the vicinity of its axis (X-X) and fixed to an articulated rod (10) substantially longitudinal to said axis (X-X).According to the invention, said device includes:an adjustment oscillating mass (M2), mounted so that it can move on the rod (10) and having an adjustment position for which the frequency of the resonator formed by said oscillating masses (M1, M2) is matched to the frequency of said vibrations; anddrive means (18) for bringing the adjustment oscillating mass (M2) into said adjustment position.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: April 4, 2000
    Assignee: Eurocopter
    Inventors: Thomasz Krysinsky, Michel Francois Anthoine
  • Patent number: 5651451
    Abstract: This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is accomplished by operation of a ratchet and pawl assembly. A reset system interfaces with the charging system to reset the charging system after the operating springs have been discharged.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: July 29, 1997
    Inventors: Roger Neil Castonguay, James Lawrence Rosen, Mark Albino Zaffetti
  • Patent number: 5501374
    Abstract: A device for extruding high viscosity fluids is described which has multiple modes of operation and provides a mechanism for relieving pressure being applied to fluid being extruded. The pressure release mechanism includes a first and second dog and a release arm that engages the second dog to result in the second dog disengaging the teeth of a drive rod attached to a piston for applying pressure to the fluid material to be extruded resulting in relief of the applied pressure by the drive rod and piston combination to stop the flow of the fluid from the nozzle of the device. The preferred device is a caulking gun.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: March 26, 1996
    Assignee: Vital Products, Co.
    Inventors: William C. Laufer, Richard C. Weiner, Stipe Vranic
  • Patent number: 5201890
    Abstract: A manually operated railroad car handbrake release system in which the release of the handbrake at one end of a car automatically causes release of the brakes at the opposite end of the same car. The system utilizes the standard type handbrake, but has affixed to each of the handbrake units a hydraulic cylinder, with interconnecting hydraulic lines between hydraulic cylinders located at opposite ends of the railcar. Brake releasing actuation at one handbrake unit pressurizes the hydraulic system so that the cylinder affixed to the brake unit at the opposite end of the car is also actuated to operate the release handle and release the brake at that end. When the release handles are actuated and released, return springs disposed about the cylinders piston rods automatically return the release handles and pistons at both ends to their non-actuated positions. The brake release system is operative from either end of the railroad car, and does not include any provision for resetting the brakes.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: April 13, 1993
    Assignee: Transit America, Inc.
    Inventors: Robert J. Sauer, Michael J. Pavlick
  • Patent number: 5102026
    Abstract: A pair of arms is hingedly connected to a rocker. These arms support the pressing bar. At their opposite ends the arms are pivotably mounted such to the casing of the appratus that in one position thereof the axis of rotation of the lower feeding roller coincides with the pivot axis of the pivotal point of the arms at the casing. By this design it is no longer necessary to adjust the apparatus for the intermittent feeding of a web-shaped workpiece by utilizing auxiliary structures to various respective thicknesses of the web being fed.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: April 7, 1992
    Assignee: Bruderer AG
    Inventor: Helmut Messner
  • Patent number: 4799622
    Abstract: An ultrasonic atomizing apparatus including an ultrasonic vibration generator and an ultrasonic vibrator horn having a cylindrical section connected at one end to the ultrasonic vibration generator and having a flared portion connected to the other end of the cylindrical section. The flared portion is flared and enlarged in diameter towards the tip end of the horn and is adapted to atomize liquid material on the flared portion as the liquid material is supplied from a liquid material supply nozzle to the flared portion. A hollow recess is formed in the flared portion opening toward the tip end of the horn. The geometry of the hollow recess is such that the cross-sectional area of the flared portion of the horn in any plane perpendicular to the longitudinal axis of the horn is the same as the cross-sectional area of the flared portion in all other planes perpendicular to the longitudinal axis of the horn.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: January 24, 1989
    Assignee: Tao Nenryo Kogyo Kabushiki Kaisha
    Inventors: Kiyoe Ishikawa, Kakuro Kokubo, Hitoshi Kurokawa, Daijiro Hosogai, Hirokazu Takenaka
  • Patent number: 4784323
    Abstract: An electromagnetic fuel atomizer for internal combustion engine applications which includes a generally C-shaped core of integral ferromagnetic construction having arms which form a pair of flat parallel surfaces spaced from each other to form a gap therebetween. The core structure is characterized by a fundamental resonant frequency determined in part by mass and elasticity of the core structure, and the ferromagnetic core is electromagnetically energized at such fundamental resonant frequency. Liquid fuel is supplied to the gap between the core arm surfaces, and standing waves are generated therein as the core arms vibrate with respect to each other. As amplitude of oscillations and such standing waves increase, fuel droplets break away from the standing wave nodes and are aspirated into the engine.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: November 15, 1988
    Assignee: Walbro Corporation
    Inventor: James K. Miller
  • Patent number: 4763776
    Abstract: Apparatus for transporting articles, the articles being positioned on bar-like members which in turn are caused to bend periodically in a wave pattern. The periodic bending is controlled to produce a driving force on the articles in a predetermined direction.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: August 16, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Okumura, Kazuhiro Izukawa, Takuo Okuno, Takayuki Tsukimoto
  • Patent number: 4445669
    Abstract: A cable tensioning device having a frame, a cable-winding drum carried in the frame, ratchet wheel means attached to the drum, a reciprocable handle bearing a driving pawl for advancing the ratchet wheel means, and a holding pawl normally limiting rotation of the drum to a single direction. The ratchet wheel means may comprise a pair of toothed ratchet wheels respectively spaced on either side of the drum, and engageable with a driving pawl having similarly spaced teeth to provide symmetrical driving of the drum.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: May 1, 1984
    Assignee: Consolidated Cable and Rigging, Inc.
    Inventor: Richard C. Wilson
  • Patent number: 4430903
    Abstract: An improved amusement or game device of the type which has one or more indicia-bearing rotatable reels which are rotated upon initiation of play by a player is disclosed. The game device has an improved main drive mechanism which permits the player to vary the initial rotational speed of the reels in direct proportion to the speed in which an associated operating handle is pulled. A supplemental drive mechanism is included for increasing the speed of the reels if the player fails to pull the operating handle with sufficient force to rotate the reels at a predetermined minimum speed. The device also includes an improved indexing means for stopping the reels in accordance with the operation of the game device. The game device also includes means for absorbing excessive energy that may be provided by a player pulling the operating handle with extraordinary speed or force.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: February 14, 1984
    Assignee: Bally Manufacturing Corporation
    Inventors: Donald E. Hooker, Roman A. Tojza
  • Patent number: 4408188
    Abstract: 1. An electromagnetic decoder comprising a code wheel assembly includinga base member,a shaft supported by the base member,a first wheel element and a second wheel element carried by the shaft,a plurality of code posts carried by the first wheel element and preset for locking the first and second wheel elements together in driving relation,selectively operable means carried by the base member for actuating the code posts sequentially in a predetermined sense for unlocking the first and second wheel elements,and means actuated by one of the wheel elements for performing a control function upon the first wheel element being unlocked from the second wheel element.
    Type: Grant
    Filed: September 5, 1963
    Date of Patent: October 4, 1983
    Assignee: The Bendix Corporation
    Inventor: Peter J. Caruso
  • Patent number: 4403523
    Abstract: A high torque reversible stepping actuator for valves can drive in small increments in response to fluid pressue pulses. The stepping actuator has oppositely facing ratchet wheels on a common shaft linked to the stepping actuator output. A pair of operator means can drive the ratchet wheels in opposite directions. Each operator means comprises a fluid pressure actuator connected to a drive pawl for driving one of the ratchet wheels in one direction. A pair of locking pawls normally engage the ratchet wheels preventing rotation in either direction. The fluid pressure actuator disengages one of the locking pawls sequentially before engaging the drive pawl with the ratchet wheel, thereby permitting advance of the ratchet wheel. The other locking pawl remains engaged and prevents back drive of the ratchet wheels and stepping actuator due to elastic deformation of the drive train connecting the ratchet wheel with the valve or other mechanism being driven.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: September 13, 1983
    Assignee: Smith International, Inc.
    Inventor: Fritz O. Seger
  • Patent number: 4363992
    Abstract: This invention relates to resonators as used in sonic or ultrasonic apparatus. Particularly with bar type resonators there is manifest a reduction of vibrational amplitude at the output surface from the central area toward the lateral edges. In the present arrangement the input surface is provided with pads to increase the mass ratio between the input and output sections for effecting substantially uniform motional amplitude along the entire output surface.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: December 14, 1982
    Assignee: Branson Ultrasonics Corporation
    Inventor: Ernest P. Holze, Jr.
  • Patent number: 4281987
    Abstract: A device using longitudinal ultrasonic vibrations for rotating a shaft at relatively low rotational speeds is particularly useful for rotating a brush-type tooth polisher on an insert for an ultrasonic dental prophylaxis unit. The device has a sleeve which supports the rotatable shaft and a vibrator. A disc is normal to the axis of rotation of the shaft and connected to the shaft for rotation. A transducer at one end of the vibrator responds to excitation for producing longitudinal ultrasonic vibrations in the vibrator, and the other end of the vibrator which is urged against the disc with a constant force converts the longitudinal vibrations into elliptical motion to engage one face of the disc during an arc of the elliptical motion. This imparts substantially only pulses of tangential driving force and normal vibrational forces to rotate the disc and shaft unidirectionally. In one preferred embodiment, the vibrator has a single driving pad urged against the disc.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: August 4, 1981
    Assignee: Cavitron Corporation
    Inventor: Claus Kleesattel
  • Patent number: 4126251
    Abstract: A pressure release mechanism for a calking gun adapted to receive a calking material containing cartridge tube and having a piston device for applying pressure to the tube for dispensing calking material therefrom enables the pressure to be released by the user to stop the calking material from flowing from the tube. The cartridge gun includes a ratchet device for advancing selectively and releasably the piston device, and the piston device includes a piston rod having ratchet teeth therein. The ratchet device includes a pawl and a latching dog for engaging the ratchet teeth. The pressure release mechanism includes a lever pivotally mounted near the latching dog for contacting it and moving it out of engagement with the teeth to free the piston rod. A manually operable device is connected to the lever and is adapted to be grasped by the user in a convenient manner for moving pivotally the lever to cause it to move the latching dog and thus to free the rod.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: November 21, 1978
    Assignee: Chester E. Borys
    Inventor: Norbert A. Subwick
  • Patent number: 4122797
    Abstract: The present invention is directed to an ultrasonic sound source made up of diaphragms composed of rectangular plates adapted, in dimensions, to vibrate in a stripes mode, and mounted, in spaced relation and in multiple stages, on a longitudinal resonance rod which is connected to the horn of the vibrator to produce the ultrasonic waves above the audio-frequency. Thus, an intense ultrasonic sound source which is free from noises and is superior in radiation efficiency is provided.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: October 31, 1978
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Masatada Kawamura, Hiroyuki Yamane