Spring Mounting Patents (Class 185/45)
  • Patent number: 10822870
    Abstract: A detachable cord rolling device includes a cord rolling unit and an auxiliary driving unit. The cord rolling unit has a first base where first and second torsion spring gears engaged with each other are disposed. A first torsion spring is disposed between the first and second torsion spring gears. The auxiliary driving unit has a second base where third and fourth torsion spring gears engaged with each other are disposed. The second base is detachably disposed on the first base of the cord rolling unit. The third torsion spring gear and the first torsion spring gear of the cord rolling unit are connected by a transmission shaft, thereby rotatable synchronously. As a result, the cord rolling unit of the invention can be used individually, or combined with the auxiliary driving unit by the transmission shaft for increasing the rolling force of the cord rolling unit.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 3, 2020
    Assignee: Jumbo Home Deco. Corporation
    Inventor: Po-Yu Chen
  • Patent number: 10744974
    Abstract: In a webbing take-up device, a cover member is disposed on the inner side of a second peripheral wall of a second housing member. Due thereto, an outer side surface of a third peripheral wall of the cover member and an inner side surface of the second peripheral wall of the second housing member oppose each other in a radial direction of urging, which is a radial direction of rotation of rotational urging force of a flat spiral spring, so displacement of the cover member outward in the radial direction of urging can be suppressed.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 18, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Takamasa Sato, Takahiro Osaki, Yuya Nagata, Tomonari Umakoshi, Takuhiro Saito
  • Patent number: 10228073
    Abstract: A rotary spring-return actuator operator is provided with a multi-slot shaft and a clock type spring retained by a retaining band which encircles the spring in such a manner as to insure that the potential energy within the spring is safely contained during all operations requiring disassembly of the actuator assembly, and wherein the retaining band facilitates the in-field reversal of the spring direction or the adjustment of the spring preload by securing the spring to one or more of the slots on the multi-slot shaft.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: March 12, 2019
    Assignee: CONTROLS INTERNATIONAL, INC.
    Inventors: Frederick Rand Underwood, Jr., Frederick Rand Underwood, III, Kenneth Earl Price
  • Patent number: 10197045
    Abstract: A safety device that is useful to release load on a spring found in an actuator. In one embodiment, the actuator can have a housing comprising a pair of housing members and a fastening device coupling the pair of housing members to one another. The embodiment can also have an output shaft extending longitudinally in the housing, the output shaft having an end configured to couple with a process device. The embodiment may also have a spring coupled with the output shaft. The embodiment can further have a safety device coupled to the spring and configured to operate to reduce loading of the spring from a first load to a second load. In one example, the safety device is in position to prevent access to the fastening device at the first load and to allow access to the fastening device at the second load so that the pair of housing members can separate to allow access to the spring in the housing.
    Type: Grant
    Filed: November 27, 2016
    Date of Patent: February 5, 2019
    Assignee: Natural Gas Solutions North America, LLC
    Inventor: Kurt Douglas Regenbrecht
  • Patent number: 10145489
    Abstract: A rotary spring-return actuator operator is provided with a multi-slot shaft and a clock type spring retained by a retaining band which encircles the spring in such a manner as to insure that the potential energy within the spring is safely contained during all operations requiring disassembly of the actuator assembly, and wherein the retaining band facilitates the in-field reversal of the spring direction or the adjustment of the spring preload by securing the spring to one or more of the slots on the multi-slot shaft.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: December 4, 2018
    Inventors: Frederick Rand Underwood, Jr., Frederick Rand Underwood, III, Kenneth Earl Price
  • Patent number: 10018965
    Abstract: Method for attachment of a last outer coil of a timepiece balance spring inside a groove provided in a balance spring stud, wherein the method includes the step of adhesive bonding the last outer coil of the timepiece balance spring by means of a fluid adhesive whose viscosity is comprised between 200 and 400 mPa·s.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: July 10, 2018
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Julien Christan, Thierry Conus
  • Patent number: 9709042
    Abstract: A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid. The cavity having a resonant cavity frequency is formed by an internal sidewall and substantially closed at both ends by a first end wall and a driven end wall. The disc pump system includes an actuator that is driven a frequency (f) that corresponds to the fundamental resonant frequency of the actuator. The internal sidewall is configured to expand and contract in response to changes in temperature, thereby causing the actuator and cavity to have approximately the same resonant frequencies over a range of operating temperatures.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 18, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout
  • Patent number: 9439732
    Abstract: An instrument interface of a robotic manipulator and a surgical system including the instrument interface are provided. In one embodiment, the instrument interface includes a spring-loaded input for providing axial load and torque to a sterile adaptor capable of operably coupling an instrument. In another embodiment, a robotic surgical manipulator system includes a manipulator assembly, including a base link operably coupled to a distal end of a manipulator arm, and a carriage link movably coupled to the base link along a lengthwise axis, the carriage link including an integrated instrument interface. The system further includes an instrument operably coupled to the carriage link via the instrument interface, and a processor operably coupled to the manipulator assembly for sensing presence of the instrument.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 13, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Roman L. Devengenzo, Thomas G. Cooper, Joseph P. Orban, III, Bruce Michael Schena, Alan E. Loh, S. Christopher Anderson
  • Patent number: 9329571
    Abstract: A mainspring including a metallic strip wound on itself. The mainspring includes an excess thickness forming a bridle in one-piece with the strip.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 3, 2016
    Assignee: Nivarox-FAR S.A.
    Inventors: Christian Charbon, Maxime Govaerts, Pierre Cusin, Marco Verardo
  • Patent number: 9151351
    Abstract: A rotary spring-return actuator operator is provided with a multi-slot shaft and a clock type spring retained by a retaining band which encircles the spring in such a manner as to insure that the potential energy within the spring is safely contained during all operations requiring disassembly of the actuator assembly, and wherein the retaining band facilitates the in-field reversal of the spring direction or the adjustment of the spring preload by securing the spring to one or more of the slots on the multi-slot shaft.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 6, 2015
    Assignee: CONTROLS INTERNATIONAL, INC.
    Inventors: Frederick Rand Underwood, Jr., Frederick Rand Underwood, III, Kenneth Earl Price
  • Publication number: 20140060975
    Abstract: A V-spring member (18) for use in a driving system for a personal care appliance has regions (34, 36) at the ends of the spring which are large enough to support a contact with an end clamping assembly, the spring member including a cross-piece (40) extending between the longitudinal edges of the spring at the end regions, such that the ends of the spring member define a closed line. End clamping assemblies (16, 24) provided for such a V-spring member include a body portion (64) having a lower support portion (66) on which the V-spring is supported and a mating clamping member (88) positioned in registry with the support portion on top of the V-spring.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 6, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: TYLER G. KLOSTER, HENDRIK RICHARD JOUSMA, MICHIEL ALLAN AURELIUS SCHALLIG, MARTINUS BERNARDUS STAPELBROEK, PATRICK A. HEADSTROM, SCOTT E. HALL, WOLTER F. BENNING
  • Publication number: 20140027205
    Abstract: A barrel including a box for receiving a pivot arbour and at least one spring, wherein the at least one spiral spring is mounted between an internal wall of the box and an external wall of the pivot arbour, and can be wound to supply mechanical energy. The barrel further includes a device for increasing torque of the at least one spring including supplementary energy accumulation curves made on the spring so that the barrel torque is customized according to a winding tension of the at least one spring. The barrel can be a timepiece barrel.
    Type: Application
    Filed: April 3, 2012
    Publication date: January 30, 2014
    Applicant: Nivarox - FAR S. A.
    Inventor: Christian Charbon
  • Patent number: 8584796
    Abstract: A tensioner as well as a method for fitting a safety line cable on the tensioner. The tensioner designed for the safety of personnel attached to the cable while working under dangerous conditions. The tensioner has a fixing element configured to couple to an external element such as a wall and has two sections capable of separating and absorbing energy as a result of a fall of a worker while attached to the safety line cable. A section of the cable passes through and is crimped in a sleeve of the tensioner while the cable is kept under tension.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: November 19, 2013
    Assignee: Capital Safety Group EMEA
    Inventor: Pascal Lara
  • Publication number: 20130020038
    Abstract: A spring assembly for a roller blind, the assembly including a stationary end, a rotatable end and a spring arrangement located therebetween which is connected at a first end thereof to the stationary end and at a second end thereof to the rotatable end, wherein the rotatable end includes a rotatable body which is adapted to rotate relative to a fixed body about a rotational axis, and wherein the spring assembly further includes a locking pin coupled to the fixed body such that it has a locked configuration in which it engages a portion of the rotatable body and prevents rotation of the rotatable body relative to the fixed body and a free configuration in which rotation of the rotatable body relative to the fixed body is permitted.
    Type: Application
    Filed: April 5, 2011
    Publication date: January 24, 2013
    Applicant: LOUVER-LITE LIMITED
    Inventors: Antony Barnes, Andrew Greening
  • Publication number: 20130004358
    Abstract: A rotary spring-return actuator operator is provided with a multi-slot shaft and a clock type spring retained by a retaining band which encircles the spring in such a manner as to insure that the potential energy within the spring is safely contained during all operations requiring disassembly of the actuator assembly, and wherein the retaining band facilitates the in-field reversal of the spring direction or the adjustment of the spring preload by securing the spring to one or more of the slots on the multi-slot shaft.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Inventors: Frederick Rand Underwood, JR., Frederick Rand Underwood, III, Kenneth Earl Price
  • Patent number: 8132651
    Abstract: An inexpensive apparatus for powering a toy plane including a rubber band motor which is connectable to the plane's propeller and to a winding mechanism, including a gear mechanism which is activated by a handle. As the handle is repeatedly squeezed and released by the user, the motor is wound up. An anti-reversing ratchet is coupled with the motor to prevent unwinding until the user wishes to launch the plane.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: March 13, 2012
    Assignee: Spin Master Ltd.
    Inventors: Charles Sink, Jeffrey James Corsiglia
  • Patent number: 8079446
    Abstract: The invention provides an operational mechanism for a movable body in which, after a movable body is in an opened state, the movable body can return to a closed position, including a movable body rotatably attached to a support and rotatable between an engaged position, a closed position, and an open position; a rotating member rotatably attached to the support, that rotates due to movement of the movable body to the engaged position; a biasing member, one end of which is attached to the movable body, and the other end of which is attached to the rotating member; and an operation member, which rotates the rotating member, changes the biasing position of the biasing member with respect to the center of rotation of the movable body, and generates in the biasing member a rotational force that moves the movable body to the closed position or the open position.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: December 20, 2011
    Assignee: NIFCO Inc.
    Inventor: Takehiko Nemoto
  • Patent number: 8061759
    Abstract: An actuation mechanism for a tarping system includes a double coil spring mountable on a pivot shaft of the mechanism. A bushing is mounted on the pivot shaft and within the double coil spring. The bushing includes an eccentric external periphery that limits the deflection of the spring, particularly at the transition points between the center portion and each of the coil portions of the spring. As the spring winds or coils, the coil portions progressively contact the eccentric periphery of the bushing to not only limit further movement of the coil portions, but also to provide support for those portions under load.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: November 22, 2011
    Assignee: Aero Industries, Inc.
    Inventor: Nicholas Conner
  • Patent number: 7793497
    Abstract: An actuator comprises an elongated shape-memory element wound around a first element and having one first end connected to the first element and one second end connected to a second element. Heating means are provided for heating the shape-memory element in order to obtain a displacement of one of the ends thereof. The elongated shape-memory element is guided so that it can slide within a closed channel made of a material having a low coefficient of friction, for example defined by a sheath.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: September 14, 2010
    Assignee: C.R.F. Società Consortile per Azioni
    Inventors: Stefano Alacqua, Gianluca Capretti, Marco Biasiotto, Alessandro Zanella
  • Patent number: 7503431
    Abstract: A mechanical rotational drive has a bar-like torsion element, whereby the torsion element is firmly clamped with a first end in a bearing device. The torsion element can be pivoted with a second free end with respect to the clamped end about the longitudinal axis, forming a rotation axis, of the torsion element between a relaxed position and a tensioned position, whereby the length of the torsion element is reduced with respect to the relaxed position when the torsion element is brought into its tensioned position.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: March 17, 2009
    Assignee: Eads Space Transportation GmbH
    Inventors: Franz Sperber, Walter Stich, Leonhard Stielner, Adalbert Wagner
  • Patent number: 6792908
    Abstract: A recoil starter including a winding housing and a reel that is rotatably coupled of the winding housing for rotation about a central axis. The winding housing includes a spring tab that is spaced from the central axis. The recoil starter also includes a spirally wound spring having an outer end portion that is coupled to the heel, a coiled portion that extends around the central axis, a guide portion that extends between the central axis and the spring tab, and a hook portions that extends radially outwardly from the central axis and that engages the spring tab to restrict movement of the inner end with respect to the winding housing.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: September 21, 2004
    Assignees: Starting Industrial Co., Ltd., Starting USA Corporation
    Inventor: Keizo Shimizu
  • Patent number: 6725975
    Abstract: In order to position a rotary actuator, a positioning device is coupled to the actuator. The positioning device has a coupling shaft and springs which respectively surround top and bottom portions of the shaft and are coupled thereto by respective coupling rings. The springs apply oppositely directed torques to the shaft such that one spring urges the shaft in a clockwise direction towards a stop position and the other spring urges the shaft in a anticlockwise direction towards that stop position. The stop position corresponds to an intermediate rotary position of the actuator.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 27, 2004
    Assignee: Kinetrol Limited
    Inventor: Roger C. Chapman
  • Patent number: 6441516
    Abstract: The device includes a barrel (2) inserted in the kinematic chain between the rotor (11) of the generator (1) and the oscillating weight (3). The barrel includes a spiral coiled spring (4) and a sliding strip (6), wound in the same direction as the spiral coiled spring over the length of a turn, without any mechanical connection with the spring, but forming a protective envelope in the open position in case of shock. The shockproof device can be applied to the generator of a wristwatch.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: August 27, 2002
    Assignee: Eta Sa Fabriques D'ebauches
    Inventors: Laurent Kaelin, Jean-Philippe Rebeaud
  • Patent number: 6283192
    Abstract: A spring drive system for window covers is disclosed, which includes a so-called flat spring drive and the combination whose elements are selected from a group which includes (1) a band transmission which provides varying ratio power transfer as the cover is opened and closed; (2) a gear system selected from various gear sets which provide frictional holding force and fixed power transfer ratios; and (3) a gear transmission which provides fixed ratio power transfer as the cover is opened or closed. The combination permits the spring drive force at the cover to be tailored to the weight and/or compression characteristics of the window cover such as a horizontal slat or pleated or box blind as the cover is opened and closed.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: September 4, 2001
    Inventor: Andrew J. Toti
  • Patent number: 6149094
    Abstract: A motor for controlling the elevating and lowering of a load comprises a storage drum, an output drum and a spring member operatively connected therebetween to provide a spring motor therewith, and a pair of cord drums aligned with and respectively adjacent the storage drum and the output drum. A gear train including an idler gear associated with the storage drum drivingly interengages the cord drums with the output drum, whereby the elevating and lowering of a load attached to the cords on the cord drums is balanced regardless of whether the elevating or lowering force is applied centrally between the points of attachment of the cords to the load.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: November 21, 2000
    Assignee: Barnes Group Inc.
    Inventors: Dennis W. Martin, Tariq M. Afzal
  • Patent number: 6129181
    Abstract: A constant force actuator transforms applied heat to an applied force on an output device. Strips of shape memory alloy are coiled into spirals and trained to have this configuration as a static state. The shape memory alloy springs are attached to the output device to apply a directional force. When one of the springs is heated, the modulus of elasticity within the spring material changes. This change in modulus increases the force which the spring exerts in returning to its static state, which in turn increases the force applied to the output device, upsetting the balance of forces and resulting in a rotation.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: October 10, 2000
    Inventor: Weyman Weems
  • Patent number: 6098757
    Abstract: A device is disclosed comprising (a) a first and second member in rotational alignment to each another; (b) a torsional resilient mechanism for providing torsional resilience between the first and second members, the torsional resilient mechanism comprising at least two or more coaxial helical springs connected in series with the inner-most spring connected to the first member and the outer-most spring connected to the second member; and (c) one or more stops for preventing at least one of said springs from winding or unwinding beyond a particular point.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: August 8, 2000
    Assignee: International Paper Company
    Inventor: Everett H. Stephenson
  • Patent number: 6032760
    Abstract: An actuator for power door locks having a bi-directional spring holder assembly. The assembly has a substantially cylindrical housing having a projection formed on a rim of its cylindrical wall. The projection is provided with first and second abutments facing in opposite directions along the circumference of the rim. A spring is mounted around a shaft which passes through a longitudinal axis of the housing. A first, internal spring end is engaged to the shaft while a second, external spring end projects radially outward of the cylindrical wall. The assembly also includes a spring cover provided with a cover abutment which similarly projects radially outward of the cylindrical wall. When the holder assembly is assembled, the spring is coiled and the cover abutment pushes against the projection's first abutment while the external spring end pushes against the second abutment.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: March 7, 2000
    Assignee: Atoma International, Inc.
    Inventor: Gregory A Jorgensen
  • Patent number: 6006475
    Abstract: An spring apparatus for use with an automatic swinging door closure system wherein the system includes a motor linked to a door via a gear train and a drive arm, the train including a plurality of gears including a first gear adjacent the motor, the motor driving the gears to move the door in either a clockwise or counter-clockwise direction and the apparatus for driving the gears in the direction opposite motor direction when motor power is cut off, the apparatus including a spring mounted within a housing which is linkable to the first gear in a first orientation to cause clockwise door movement and is linkable to the first gear in a second orientation to cause counter-clockwise door movement, the apparatus is easily modifiable so as to be configured in either of the first or second orientations and also includes a tension adjusting mechanism for adjusting spring tension.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: December 28, 1999
    Assignee: Nabco Entrances Inc.
    Inventors: James E. Schwantes, James R. Scott, Michael L. Slosiarek, Donald G. Mussa, James A. Treichel
  • Patent number: 5809697
    Abstract: A door closer includes a casing fixedly fastened to a door leaf, a shaft turned in axle holes in the casing, a spiral spring mounted around the shaft within the casing and having one end fixed to the shaft and an opposite end fixed to the casing and adapted for returning the door leaf to the close position each time it is opened, a rack fixedly fastened to a door frame to which the door leaf is hinged, a bevel gear fixedly mounted on one end of the shaft and turned with it along a 90-degree arc toothed bar section of the rack, and a curved springy holding down plate fastened to the rack and adapted for holding down the bevel gear to keep the door leaf to be retained in an open position.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: September 22, 1998
    Inventor: Wen Hua Chen
  • Patent number: 5590741
    Abstract: A spring motor having a large number of flat spiral wound springs connected in series is shown which allows storage of large amounts of energy in a small amount of cubic space. Only a small force is required for full wind up of the assembly. Energy can be simultaneously stored and withdrawn.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: January 7, 1997
    Inventor: Wayne W. Storms
  • Patent number: 5482100
    Abstract: A cordless, balanced venetian blind or shade with a constant variable spring motor includes conventional window covering components without the outside hanging lifting cords or cord locking mechanisms. One or more constant variable force spring motors are employed, preferably comprising springs which vary in thickness or in width along their length as they are wound around storage drums. A cord spool, in the preferred embodiment, is coupled to one of the spring drums to serve to wind the cords to cause the blind to be raised or lowered, simply by manipulation of the bottom bar of the blind system. Due to the difference in thickness or width of the spring, the system compensates for the increasing weight on the cords as the window covering is raised and for the decreasing weight as it is lowered.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: January 9, 1996
    Assignee: Newell Operating Company
    Inventor: Otto Kuhar
  • Patent number: 5386884
    Abstract: A spring assembly of the kind having a coiled strip spring member (34) supported at one end on an arcuate drum portion (16) about which it is reverse wound and coiled at its other end about an abutment (20) further includes a base plate (10) mounting the drum portion (16) and a second base plate (18) mounting the abutment (20), the base plates (10) and (18) being interconnected by pins (32) attached to base plate (18) running in slots (26, 28) provided on base plate (10) so as to prevent relative movement of the base plates which would allow the spring to coil further about the abutment (20). The base plate (10) is provided with a cover (40) with which it forms a housing portion and the base plate (18) is provided with a cover (38) with which it forms a second housing portion. The assembly can be dropped on to support pins (14, 22) attached to respective halves (42, 44) of a hinge, e.g. of an automobile trunk or lid.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: February 7, 1995
    Assignee: Tensator Ltd.
    Inventor: David Chisholm
  • Patent number: 5294097
    Abstract: There is provided a two point mounting system for the outside end of a spiral spring. The mounting system induces a torsional load on the outside end of the spiral spring to overcome the tendency of the spiral spring coils to move into a non-concentric position. The mounting system comprises a single piece sleeve which has an elongated slot for contacting the spiral spring on opposite sides and inducing the torsional load.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: March 15, 1994
    Assignee: Hasco Industries, Inc.
    Inventors: H. Jay Thomsen, William D. Belisle, Christopher J. Walter
  • Patent number: 5213183
    Abstract: Control device for a valve provided with a spiral spring whose release brings about rotation of the drive shaft of the stopper of the valve. Rotation of the auxiliary shaft of the control device is dependent upon a shock absorbing device, wherein rotation of the auxiliary shaft drives a rotating piston arranged in a sealed housing containing a viscous fluid.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: May 25, 1993
    Assignee: Societe Anonyme Mecafrance
    Inventor: Daniel P. Maurer
  • Patent number: 5188198
    Abstract: A power spring drive apparatus having a power spring on a power spring wind up shaft, an output shaft, and a gear train for winding the power spring and for transferring the rotational force of a wound power spring to the output shaft. The apparatus is in a housing case formed of first and second synthetic resin cases connected together by pins and receiving holes. The housing case has a power spring housing section with a window between the section and externally of the housing. One end of the power spring has a neck shape and extends through the window and is fastened to the housing.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: February 23, 1993
    Assignee: K.K. Sankyo Seiki Seisakusho
    Inventors: Kenji Muramatsu, Hiroyuki Iwashita
  • Patent number: 5187612
    Abstract: A miniature device for moving a reference plane or point on an axis in rotational or x-y directions, particularly useful for two dimensional beam scanning. The device consists of a ferromagnetic ring surrounding a magnetic core which is flexibly mounted and suspended within it. Electric current at various frequencies is supplied to coils wrapped about and mounted within the ring. The core provides a magnetic field within the ring which defines its coordinates with respect to the ring and its coils and interacts with current applied to the coils to produce torque. The flexible mount suspending the core within the coils permits relative movement therebetween in response to the varying current.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: February 16, 1993
    Assignee: Gap Technologies, Inc.
    Inventor: George A. Plesko
  • Patent number: 5103936
    Abstract: A thin spiral spring drive unit, in particular for a toy car, employs a crown gear in a gear train between an output shaft and a drive shaft on which a spiral spring is wound as a source of the driving force. The unit can be assembled with a small number of component parts, in a simple structure and at lower cost. Simply by changing the direction of the output shaft when it is assembled into a gear box, the direction of rotation of the output shaft may be changed. The crown gear in the drive unit is arranged at a position substantially centeral to the width of a gear box. A pinion is arranged at two positions where the crown gear intersects with the output shaft to be meshed with the crown gear by means of a positioning mechanism. The crown gear is provided on its periphery with a windup gear and with a driving pinion on the shaft thereof so that the windup gear is engaged with a gear at the time of winding while it is directly engaged with a driving gear at the time of driving.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: April 14, 1992
    Assignee: Seikoken Kabushiki Kaisha
    Inventor: Ryota Morikawa
  • Patent number: 5067451
    Abstract: A rope pulley for an internal combustion engine recoil starter using a spiral recoil spring to rewind the starter rope upon the pulley. The improvement consists of the use of a recoil spring end lock defined on the pulley to prevent the spring end from disengaging from its anchor on the pulley during recoiling or due to pulley deformation. The spring end lock consists of a cap plate associated with the pulley slot forming the recoil spring anchor and a retainer wall all related in a manner to achieve the desired result.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: November 26, 1991
    Assignee: Eaton Indiana, Inc.
    Inventor: Rex A. Tyler
  • Patent number: 4995567
    Abstract: The barrel, which consists, inter alia, of a casing (10) defining a chamber (100), of a coverplate (20) with an orifice (21), of a hub (30) and of a spiral spring (40), comprises a device (50) for temporarily immobilizing the hub (30) in this chamber (100) which consists of male (51) and female (52) complementary elements which are intended to be engaged in each other and are carried by the base (11) of the casing and the hub (30), where these male elements (51) are fragile and are intended to break as a result of the action exerted upon the hub (30) through the orifice (21), once the spring has been tensioned.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: February 26, 1991
    Assignee: Ecia-Equipements et Composants pour l'Industrie Automobile
    Inventor: Jean-Noel Ballet
  • Patent number: 4986141
    Abstract: Apparatus for taking up and paying out first and second ends of an endless loop of tape that has an intermediate section. A first reel connected to the first end carries a first coil of the tape. The first coil extends from the first reel and is normally self-expanding and unwinding so as to unwind itself from the first reel. A second reel is connected to the second end for carrying a second coil of the tape. The second coil extends from the second reel and is normally self-expanding so as to unwind itself from the second reel. A drum supports both of the first and second reels for rotation in the same direction. Pulleys guide the intermediate section of the tape from the first reel to the second reel for moving a sludge collector. When the drum is rotated in a first rotary direction, the first coil tends to self-unwind from the first reel and the second coil is wound up on the second reel to move the intermediate section of the tape and the sludge collector.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 22, 1991
    Assignee: Baker Hughes Incorporated
    Inventor: Charles L. Meurer
  • Patent number: 4881621
    Abstract: This invention relates to a spiral spring power source for a toy, which can select a method of winding a power spiral spring 7 by a pulling string type winding cord 25 and a method of winding the power spiral spring 7 by a winding key 43 by removing a mechanism relative to the winding yarn 25, can alter the pulling direction of the winding cord 25 at 360.degree. in case of the method with the winding cord 25, can drive the output shaft through a gear set when uncoiling the energized power spiral spring 7, but can produce outputs not at one position but at a plurality of positions to be connected to a plurality of gears selected from the gear set.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: November 21, 1989
    Assignee: Marusan Co., Ltd.
    Inventor: Minoru Ishida
  • Patent number: 4850233
    Abstract: A recoil apparatus has a drum rotatably disposed within a casing. A peripheral groove is formed in the drum in such a manner as to open in the outer periphery of the drum. A recoil spring member is formed into a spiral shape and is received within the peripheral groove, with its inner end being secured to the drum and its outer end extending from the casing to the outside. A pulling knob is mounted on the outer end of the recoil spring member.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: July 25, 1989
    Assignee: Kioritz Corporation
    Inventor: Naomoto Ishigo
  • Patent number: 4817927
    Abstract: This invention relates to a novel anchor cone and winding cone apparatus and method for mounting a coil torsion spring to an overhead door. Indicia are provided on the cones to assure proper orientation of the cones to the spring and the cone/spring assembly to the overhead door. The winding cone includes arrow indicia to clearly indicate the direction of rotation for the winding cone to increase tension on the coil torsion spring. A groove break is provided in each cone to substantially reduce chafing and wear of the corresponding coil of the coil torsion spring.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: April 4, 1989
    Assignee: Martin Door Manufacturing
    Inventor: David O. Martin
  • Patent number: 4807347
    Abstract: A tool for rewinding the recoil starter spring within a recoil starter mechanism for a small engine which allows the repair person to rewind the spring with a minimum of trouble and without the danger of the spring flying out of the central spring receiving recess of the starter pulley.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: February 28, 1989
    Inventor: George H. Johnson
  • Patent number: 4776574
    Abstract: This invention relates to an improved seat belt retractor rewind spring assembly. In accordance with this invention, a rewind spring assembly is provided having the "bridling" effect wherein the coiled flat strip spring is retained by a spring cap which exerts an outwardly directed bending load on the end of the spring which engages the cap. This bridling effect has been found to increase the efficiency of the coil spring. The rewind spring assembly according to this invention improves over prior art designs in that completely automated assembly is possible through the provision of a novel spring cap design, assembly fixture and assembly process.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: October 11, 1988
    Assignee: General Safety Corporation
    Inventor: Dagoberto Krambeck
  • Patent number: 4771965
    Abstract: The barrel comprises a pre-stressed spiral spring which arms the barrel and further comprises a housing (100), a rotatable hub (200) and the spring (300) which is wound around the hub and anchored to the latter and to the housing. The barrel includes between the hub and the housing an anti-return device (400) which allows a relative rotation between the hub and the housing in only a single direction but is so arranged as to be movable between a first position in which it allows said relative rotation in only the single direction and a second position in which it allows rotation in both directions. The device is accessible from outside the housing for the purpose of shifting the device from one to the other of its positions. The barrel is particularly useful in ground motor vehicle safety belt winders.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: September 20, 1988
    Assignee: Aciers et Outillage Peugeot
    Inventor: Jean-Noel Ballet
  • Patent number: 4732121
    Abstract: A recoil starter is disclosed which comprises a cup-shaped casing, a side plate integrally having an annular projection disposed in opposition to an inside of a bottom portion of the casing and having an engagement hole to be engated with an engagement projection of the bottom portion, and a spiral spring retained at one end to the annular projection of the side plate and kept in place in a spiral form within a circumferential wall of the side plate. The side plate integrally has the circumferential wall and a boss portion insertion hole at its central portion.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: March 22, 1988
    Assignee: Kioritz Corporation
    Inventors: Hiromasa Miyata, Toshio Taomo, Akira Nagashima
  • Patent number: 4719992
    Abstract: A spring motor comprises an output drum rotatably mounted to a casing and a first end of a spring attached to the output drum. A second end of the spring is attached to a free floating locking plug, around which the spring coils in an unstressed state. A pin is mounted near the output drum to prevent the locking plug from passing between the pin and the output drum.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: January 19, 1988
    Assignee: Sandvik Steel Co.
    Inventors: Michael P. Elward, Donald R. Lodwick
  • Patent number: 4713508
    Abstract: A stored energy system of a circuit breaker operating mechanism comprises a telescopic link having a guide and a cap with relative movement between which at least one closing spring is inserted. At the end of charging travel, a removable blocking device can be inserted in orifices of the cap and guide to lock the telescopic link. The release of a recharging cam by unlocking a closing pawl then causes a break in the mechanical link with a drive lever, so as to allow the sub-assembly formed by the telescopic link and the closing spring in the compressed state to be removed.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: December 15, 1987
    Assignee: Merlin Gerin
    Inventors: Pierre Baginski, Jean-Pierre Nebon