Pawl And Ratchet Patents (Class 411/326)
  • Patent number: 11015403
    Abstract: A sensor unit for a fingerboard latch assembly comprising a latch bracket and a latch rotatably mounted on the latch bracket comprises a sensor arranged to sense the orientation of the latch and a wireless, optical or other communication unit arranged to communicate the orientation of the latch sensed by the sensor. The sensor unit may be mountable on the latch and comprise an orientation sensor arranged to take measurements that are dependent on the orientation of the sensor unit, and a processor arranged to derive an orientation signal representing the orientation of the latch from the measurements, the communication unit being arranged to communicate the orientation signal. A monitoring system receives the sensed orientations from plural sensor units.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: May 25, 2021
    Assignee: Salunda Limited
    Inventors: Alan Patrick John Finlay, John Mark Newton, Andrew Henry John Larkins, Mathew William Davis, Grant Nicholls
  • Patent number: 10465738
    Abstract: A lock threaded assembly includes a bolt including a shank formed with a bolt head and having a threaded portion; at least one groove formed on the threaded portion; a nut including a threaded hole configured to secure to the threaded portion of the bolt; at least one trough formed on the threaded hole; and at least one engagement member being an elongated elastic strip body having a securing section and a received section, the securing section and the received section being able to elastically get closer to each other or move away from each other. When the groove is not aligned with the trough, the bolt and the nut are not locked by the engagement member; when the groove is aligned with the trough, the bolt and the nut are elastically locked by the engagement member.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 5, 2019
    Assignee: KABO TOOL COMPANY
    Inventor: Chih-Ching Hsieh
  • Patent number: 9416698
    Abstract: Fastening method, assembly and structure of engine oil fill extension tube can include an oil fill extension tube and a self-locking washer. The oil fill extension tube can include a plurality of locking edges disposed towards a first distal end of the oil fill extension tube, where the plurality of locking edges can define boundaries of a plurality of slots. The self-locking washer can include a plurality of teeth disposed on its top surface. The self-locking washer can be oriented over an opening in the oil pan, after which the oil fill extension tube can be threaded into the opening. The plurality of slots and plurality of teeth can be ratcheted together to fasten the oil fill extension tube into the oil pan when the oil fill extension tube is rotated clockwise. The washer can further include a locking extension to securely engage a portion of the oil pan.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: August 16, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Christopher D. Meeks, Nathaniel A. Lenfert
  • Publication number: 20150003930
    Abstract: A fastening system includes a removable stud and a retaining plate. The removable stud includes a threaded portion configured to be removably threaded into a threaded bore of a housing, a shank portion arranged coaxially with the threaded portion and configured to be inserted through a bore of a housing of a line replaceable component, and an anti-rotation portion disposed between the threaded portion and the shank portion. The retaining plate is configured to be mounted between the housing and the line replaceable component. The retaining plate includes a mating hole configured to mate with the anti-rotation portion of the removable stud.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventor: Mark R. Plickys
  • Publication number: 20140314515
    Abstract: A threaded fastening device is provided which utilizes a plurality of retractable pawls (46,38) positioned in a first register (22) surface of the fastening device. The pawls ratchet against a plurality of teeth (28) formed on a second register surface (32) when the first register surface is rotated in a tightening direction against the second register surface. The pawls are adapted to prevent disengagement from the plurality of teeth and thus prevent further rotation when the when the first register surface is rotated in a loosening direction against the second register surface.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Applicant: PARKER HANNIFIN CORPORATION
    Inventor: Westin S. Baker
  • Patent number: 8784027
    Abstract: A fastening device including a fastener having a head portion and an elongated threaded body portion extending axially from the head portion. The threaded body portion includes opposing flat sections. A lock washer has a lower surface with an array of radially extending engagement teeth. The lock washer also defines an axial aperture for receiving the fastener. The axial aperture has two flat inner surfaces for cooperating with the two flat sections of the threaded body portion to prevent relative rotation of the washer and threaded body portion. A threaded lock nut mates with the threaded body portion. The lock nut has an upper surface with at least one cantilevered pawl members for ratcheted engagement with the array of radially extending engagement teeth of the lock washer.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: July 22, 2014
    Assignee: Enduralock, LLC
    Inventor: Harold Hess
  • Patent number: 8672599
    Abstract: A securing element (26) for securing against the loosening by rotation of at least two screwable housing parts (3,2), the securing element (26) being arranged so as to be clamped in one of the housing parts (3) and interact with the other housing part (2).
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: March 18, 2014
    Assignee: Georg Fischer Rohrleitungssysteme AG
    Inventors: Joerg Hunnekuhl, Juergen Stumpp
  • Patent number: 8545152
    Abstract: The invention relates to a screw which can be screwed into a component and which will resist further screwing into an internal thread within said component once a maximum torque has been reached. For this purpose, a screw body having an external thread is combined with a screw drive element which projects into a bore within said screw body and, within said bore, is connected to the screw body via static friction. At least part of this combination is made of a plastic material, with the static friction having the effect of a slipping clutch when a maximum torque acts on the screw drive element. The screw drive element is connected to the screw body via a ratchet in such a way that when the screw body is unscrewed from the internal thread within said component, turning said screw drive element will cause the ratchet to engage, thereby entraining the screw body.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: October 1, 2013
    Assignee: Ejot GmbH & Co., KG
    Inventors: Rolf Kuenkel, Walter Kornsteiner, Reinhold Lenherr, Axel Tome
  • Patent number: 8540470
    Abstract: A nut fastener is provided for locking the nut to prevent inadvertent loosening of the nut. The nut fastener is particularly useful for tightening a wheel onto an axle. The nut fastener includes a nut, a collar and a retaining ring. The nut is unlocked by pushing on an engagement surface of the collar. When the collar is released, the collar locks against the nut.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 24, 2013
    Assignee: MacLean-Fogg Company
    Inventors: John W. Dillon, Mark W. Hughes, Lee A. Hawkins, Stanley C. Nadig
  • Publication number: 20130216328
    Abstract: A mounting apparatus includes a bolt and a nut. The nut includes an inner member having a first engagement feature and a threaded opening, the threaded opening configured to receive the bolt, and an outer member having a second engagement feature. The inner member is axially coupled to the outer member via a snap fit. The inner member is configured to rotationally lock with the outer member through the interaction of the first engagement feature and the second engagement feature via an application of a threshold torque.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 22, 2013
    Inventors: Michael R. Leibfried, Kurt W. Leibfried
  • Publication number: 20130047413
    Abstract: A fastener for use in connection with a tubular boss has a shaft with at least one rib along the length thereof and at least one thread segment extending at least partially around the shaft. The shaft is inserted into the boss in first position, and rotated to a second position wherein the at least one thread segment engages at least one column formed in the tubular boss. The shaft can be integrally formed with a first molded part to be fastened to a second molded part with an integrally formed tubular boss. Various locking features for locking the shaft in the boss are also disclosed.
    Type: Application
    Filed: May 24, 2011
    Publication date: February 28, 2013
    Applicant: Burton Technologies, LLC
    Inventor: John Burton
  • Publication number: 20120063864
    Abstract: A fastening device including a fastener having a head portion and an elongated threaded body portion extending axially from the head portion. The threaded body portion includes opposing flat sections. A lock washer has a lower surface with an array of radially extending engagement teeth. The lock washer also defines an axial aperture for receiving the fastener. The axial aperture has two flat inner surfaces for cooperating with the two flat sections of the threaded body portion to prevent relative rotation of the washer and threaded body portion. A threaded lock nut mates with the threaded body portion. The lock nut has an upper surface with at least one cantilevered pawl members for ratcheted engagement with the array of radially extending engagement teeth of the lock washer.
    Type: Application
    Filed: May 4, 2011
    Publication date: March 15, 2012
    Applicant: Spinal Simplicity LLC
    Inventor: Harold Hess
  • Patent number: 7862276
    Abstract: An anti-unscrewing device for coupling the tubular ends of two components in fluid conveying or delivery systems by means of a threaded ring nut that can be screwed to one of said tubular ends to connect said ends, wherein said anti-unscrewing device comprises a connecting portion to connect the device to one of the components and at least one counter element provided with an engaging portion suitable to engage a corresponding engaging surface formed at said ring nut, such that the engaging portion can be displaced by means of a movement of the ring nut. There are further provided guide means dictating a movement path for the counter element, such that an unscrewing movement of the ring nut will cause the engaging portion to move to a locking position relative to the ring nut thereby preventing the ring nut from unscrewing.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: January 4, 2011
    Assignees: F.I.P. Formatura Iniezione Polimeri S.p.A., Aliaxis R & D
    Inventors: Corrado Mazzacano, Andrea Bisio
  • Patent number: 7811038
    Abstract: A self-locking nut includes a nut; a washer having a locking feature, the locking feature having a plurality of ridges; and at least one locking tab for slidably coupling the nut to the washer and engaging with the locking feature to resist rotation of the nut with respect to the washer.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: October 12, 2010
    Assignee: Stemco LP
    Inventor: Daniel Trejo Jimenez
  • Patent number: 7445413
    Abstract: A screw-nut assembly has an integrated immediately effective securing arrangement that prevents an unintentional loosening of a screw connection formed therewith. The screw-nut assembly has a first screw connection body and an associated second screw connection body. One of the two screw connection bodies (1) has a free-wheel (3) that is connected thereto in a rotationally fixed manner. A coupling device (9) is provided between the free-wheel (3) and the other of the two screw connection bodies (2). This coupling device connects both screw connection bodies to one another in a rotationally fixed manner and allows their disengagement from one another.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: November 4, 2008
    Inventor: Guilherme Niederhageboeck
  • Patent number: 7052334
    Abstract: A locking clamp assembly that permits movement in one direction and prevents movement in a second direction to eliminate unintentional locking clamp assembly loosening encountered during normal operation. The locking clamp assembly includes a clamp head with a threaded portion and at least one retaining slot traversing the threaded portion, a clamp housing adapted to threadedly received the clamp head, and a locking pin that is operatively mounted on the clamp housing and is positioned adjacent to the retaining slot. When the locking clamp assembly is engaged, the locking pin is adapted to interact with at least one retaining slot to prevent the locking clamp assembly from movement in a first direction and for actuation by a retaining slot to enable movement of the locking clamp assembly in a second direction. There is also an engage means for the locking pin to selectively engaged or disengaged the locking clamp assembly.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: May 30, 2006
    Inventors: Jeffrey J. Cabay, Ralph J. Jacobazzi
  • Patent number: 6010289
    Abstract: The locking nut and bolt system utilizes a bolt with thread having a plurality of notches generally longitudinally spaced in a predetermined pattern. Each notch has a lock face and an opposing slope. The locking unit carries one or more tines. The tine has a distal tine end adapted to latch onto the lock face of the notch on the bolt and, when the distal tine end is not disposed in one or more notches, the tine end moves on the bolt thread crest. When the distal tine end is in the notch or notches, the lock face of the notch prevents counter-rotational movement of the bolt with respect to the nut when the distal tine end abuts the lock face. The locking unit supports the tine and may be cylindrical, rectangular or on a perpendicular support face normal to a radial plane through the axial centerline of the nut thread. The locking unit may be on a nut insert or may be carried on the leg of a U, J or S-shaped clip. The locking unit may be recessed as a blind hole.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: January 4, 2000
    Assignee: Permanent Technologies, Inc.
    Inventors: Robert J. DiStasio, Stephen G. Bowling, William Kurt Feick
  • Patent number: 5362110
    Abstract: A new capture device comprising a plurality of axially extending tangs on one of a pair of complementary fittings in a fluid coupling and a polygonal circumferential groove on the other fitting adapted to engage the tangs. Upon rotational engagement of the fittings the tangs engage the polygonal groove and "ratchet" about the junctures between the flats until the coupling is tight. Although not limited to particular materials, the new capture device is particularly suited to very tough, strong and hard materials such as titanium, stainless steel and Inconel alloy because the effectiveness of the capture device is dependent upon the stiffness of the tangs. The new device prevents vibrational disassembly of the complementary fittings without preventing disassembly solely with wrenches. Moreover, the complementary fittings and capture device can be repeatedly assembled and disassembled without any damage to the threads or capture device.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: November 8, 1994
    Assignee: Moeller Manufacturing Co., Inc.
    Inventor: Kurt K. Bynum
  • Patent number: 5234259
    Abstract: A resin wheel consisting of two or more molded parts coupled together. The parts are molded separately and have threaded portions. Then, the threaded portion of one molded part is screwed into the threaded portion of the other molded part so that the parts are fitted and coupled together.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: August 10, 1993
    Assignee: Bridgestone Corporation
    Inventors: Youichi Nishimuro, Haruo Koyama, Kunio Machida, Yoshihide Fukahori
  • Patent number: 5180265
    Abstract: A lock nut to be threaded onto a threaded shank which has a keyway. The lock nut has a base, a key on the base to fit in the keyway, a peripheral wall with axial angularity spaced apart recesses, and a wave spring. The wave spring has ridges and radial tabs to fit in the recesses. An internally threaded nut has radially-extending grooves complementary to the ridges to hold the nut against rotation relative to the wave spring when the ridges fit in the grooves. The tabs can be contacted by a drive member to compress the wave spring and remove the ridges from the grooves to enable the nut to turn during installation and removal.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: January 19, 1993
    Assignee: Hi-Shear Corporation
    Inventor: David Wiese
  • Patent number: 5092725
    Abstract: A two member threaded fastener includes integral ribs and/or locking fingers formed concentrically around threaded portions of the two members which make up each fastener. The ribs and/or locking fingers interferingly interengage one another as the two members are threadedly intermated to either removably or permanently lock the members together as desired for a given application. Preferably, the locking fastener members are formed of a polymeric resin and include concentric annular rings which are spaced from the threaded portions of the fastener members by interconnecting webs and define axially extending ribs. The ribs are rounded and preferably sinusoidal for removably locking fastener members and are serrated for permanently locking fastener members.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: March 3, 1992
    Assignee: Ford Motor Company
    Inventor: Robert W. Aittama
  • Patent number: 4971501
    Abstract: A self-locking lock nut to be applied to a shaft having an axial keyway. It can be applied and removed with or without special tooling by virtue of a camming relationship between the teeth of a rotationally restrained axially biased lock ring, and the teeth of a rotatable nut ring that is threaded to the shaft, and which bears against a thrust washer to which the lock ring is retained.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: November 20, 1990
    Assignee: Hi-Shear Corporation
    Inventor: Alex B. Chavez
  • Patent number: 4802700
    Abstract: Locking seal including a rod which is spring-locked within a lock body includes channel structure within the lock body and in the rod surface to preclude removal of the rod even during relative rotation between the rod and the lock body.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: February 7, 1989
    Assignee: Trans-Guard Industries, Inc.
    Inventors: David L. Stevenson, Terry R. Moore, Terrence N. Brammall
  • Patent number: 4793754
    Abstract: A process for mutually locking two elements screwed on one another, wherein it is provided that a portion of one of the elements covers a housing provided in the other element and overlaps an edge limiting said housing; said portion or a part thereof is then sheared level with said edge so that it penetrates in the housing, the shearing front then cooperating with the wall of the housing comprising the edge to form a stop opposing unscrewing. The process is more particularly applicable to the connecting of tubes used in offshore oil drilling and prospection.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: December 27, 1988
    Assignee: Vetco Gray Inc.
    Inventor: Philippe Nobileau
  • Patent number: 4786224
    Abstract: A lug nut cover is provided having a breakage shroud for restricting access to the lug nut and a retaining cap for securing the shroud to the lug. The shroud includes an internal ledge having ratchet teeth thereon. The cap includes an exterior flange having pawls thereon. When the cap is threaded onto the lug, the ledge engages the flange at a predetermined position to stop forward threading. From this predetermined position, the pawl/ratchet arrangement prevents reverse threading.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: November 22, 1988
    Assignee: Maron Products, Inc.
    Inventor: Donald J. Wharton
  • Patent number: 4493597
    Abstract: A removable reusable nut lock system (10) of the locking cap type for positively selectively removably retaining a standard nut (12) on the externally threaded end of a shaft (14) is provided. The lock nut assembly comprises an internally threaded bore (22) provided in the end of an externally threaded shaft having internal threads (24) of an opposite hand as the external threads (16) on the shaft. A locking cup member (26) is provided for slipping over the outer periphery of the nut for rotation therewith and the locking cup member is provided with a flange (32) having a plurality of ramp type ratchet teeth (38) on the outer periphery thereof. A locking cap member (28) is provided having an externally threaded stud (50) fixed thereto and a plurality of locking fingers (58, 60) extending radially outwardly and downwardly therefrom.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 15, 1985
    Assignee: Eaton Corporation
    Inventor: Jeffrey O. Rolf