Flat Spiral Patents (Class 267/272)
  • Patent number: 8061697
    Abstract: A rotatable wheel having a rotary shock absorber coupled on an axle and between a disc brake rotor and the rotatable wheel, for providing enhanced suspension. The rotary shock absorber consists of an air-tight hollow disc structure filled with lubricant, the disc structure further having a central circular opening, a sealing plate coupled to and sealing the central circular opening on one side, a sealing boot portion coupled and sealing the central circular opening on the other side, and a circular hub portion nesting inside the hollow disc structure. The hub portion further has six circular through holes, one or more identical helical springs nested firmly inside each of the six circular through holes, and six lug bolts each having two threaded ends and a smooth body. Each of the six lug bolts is further coupled rigidly and perpendicularly at the center of each of the two corresponding helical springs and secured on both ends at each side of the hollow disc structure.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: November 22, 2011
    Inventor: Raymond J. Lee
  • Patent number: 7566050
    Abstract: A rotary shock absorber coupled on an axle between a disc brake rotor and a rotatable wheel of equipment, bicycle or motor vehicle, for providing enhanced suspension. The rotary shock absorber consists of an air-tight hollow disc structure filled with lubricant, the disc structure further having a central circular opening, a sealing plate coupled to and sealing the central circular opening on one side, a sealing boot portion coupled and sealing the central circular opening on the other side, and a circular hub portion nesting inside the hollow disc structure. The hub portion further has six circular through holes, two identical helical springs nested firmly inside each of the six circular through holes, and six lug bolts each having two threaded ends and a smooth body. Each of the six lug bolts is further coupled rigidly and perpendicularly at the center of each of the two corresponding helical springs and secured on both ends at each side of the hollow disc structure.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: July 28, 2009
    Inventor: Raymond J. Lee
  • Publication number: 20090079246
    Abstract: An object of the present invention is to provide a spiral spring assembly that is capable of suppressing lateral force generated in a central shaft. A spiral spring assembly 1 includes a central shaft 2; a spiral spring 3 that is disposed on the periphery of the central shaft 2 and includes an outer end 3a, an inner end 3b, and a spiral portion 3c that connects the outer end 3a and the inner end 3b in a spiral form; an inner end fixing member 4 to which the inner end 3b is fixed so as to be capable of transmitting torque; and an outer end fixing member 5 to which the outer end 3a is fixed, and which is capable of moving relative to the inner end fixing member 4 within a predetermined section extending from a first state to a second state. The outer end 3a is fixed to the outer end fixing member 5 so as to be capable of transmitting torque and suppressing a lateral force that is generated in the central shaft 2 in a predetermined state within the predetermined section.
    Type: Application
    Filed: January 25, 2007
    Publication date: March 26, 2009
    Applicant: CHUO HATSUJO KABUSHIKI DAISHA
    Inventors: Shinsuke Okura, Toshihiro Suzuki, Itsuo Kojima
  • Patent number: 7018092
    Abstract: A spiral spring for use in connection with horology instruments is disclosed which includes a spiral spring and a collet which are produced in one piece without molecular discontinuity.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 28, 2006
    Assignee: Franck Muller Watchland S.A.
    Inventor: Francesco Müller
  • Patent number: 6863435
    Abstract: A mainspring used as a power source for a driving mechanism is made of an amorphous metal sheet, and has an S-shaped free-exploded shape. The curvature changing point, where the curving direction of the free-exploded shape changes is formed on the inner end side of a middle point between the inner end on the winding side and the outer end serving as the other end of the inner end. Because of the high tensile stress and a low Young's modulus, the amorphous metal permits increase in mechanical energy stored in the mainspring.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 8, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masatoshi Moteki, Fumio Takagi, Tatsuo Hara
  • Patent number: 6843594
    Abstract: A mainspring used as a power source for a driving mechanism is made of an amorphous metal sheet, and has an S-shaped free-exploded shape. The curvature changing point where the curving direction of the free-exploded shape changes is formed on the inner end side of a middle point between the inner end on the winding side and the outer end serving as the other end of the inner end. Because of the high tensile stress and a low Young's modulus, the amorphous metal permits increase in mechanical energy stored in the mainspring.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: January 18, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masatoshi Moteki, Fumio Takagi, Tatsuo Hara
  • Patent number: 6457622
    Abstract: An open-topped vehicle body, such as a dump body, includes a tarping system that is deployed over the body by a pivoting bail member. An actuation mechanism applies a torque to the bail member to automatically pivot the member and deploy the tarp. The actuation mechanism includes a number of double coil spiral torsion springs anchored on a shaft attached to the dump body. The springs each includes a right hand and a left hand coil portion concentrically wound about an integral center anchor portion. The shaft includes an elongated slot to receive and support the center anchor portion of each spring within the mechanism. The coil portions of each spring include a left and right reaction end configured to contact and provide a torsional force against a corresponding reaction post within the housing. In one embodiment the housing is made in two connectable halves with one half of each reaction post integrally formed into each housing half.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: October 1, 2002
    Assignee: Aero Industries, Inc.
    Inventor: Steven A. Henning
  • Patent number: 6318790
    Abstract: An open-topped vehicle body, such as a dump body, includes a tarping system that is deployed over the body by a pivoting bail member. An actuation mechanism applies a torque to the bail member to automatically pivot the member and deploy the tarp cover. The actuation mechanism includes a number of double coil spiral torsion springs anchored on a shaft attached to the dump body. The springs each include a right and a left coil portion concentrically wound about an integral center anchor portion. The shaft includes an elongated slot to receive and support the center anchor portion of each spring within the mechanism. The actuation mechanism includes a housing attached to the bail member. The housing contains the double coil springs and supports a pair of reaction posts extending therethrough. The coil portions of each spring include a left and right reaction end configured to contact and provide a torsional force against a corresponding reaction post within the housing.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: November 20, 2001
    Assignee: Aero Industries, Inc.
    Inventor: Steven A. Henning
  • Patent number: 6299367
    Abstract: A sheet feeding mechanism includes a sheet feed roller for transporting a sheet along a paper transport path, and a sheet-pressing member disposed so as to press the sheet feed roller. The sheet-pressing member integrally includes a pressing portion which is formed by increasing the diameter of a part of a coiled portion of a compression coil spring.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: October 9, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Hideki Kawakami, Kenichi Hirabayashi
  • Patent number: 5271611
    Abstract: An arm for suspending a vibrating member is disclosed. The arm has low bending stiffness in two mutually perpendicular first and second directions (x and z), and high stiffness in compression and in traction in a third direction (y) perpendicular to the first and second directions. The arm comprises a blade made of a composite material which is fixed at one end to the vibrating member and fixed at an opposite end to a second member. The cross-sectional area along the length of the blade is constant and rectangular in shape. The opposed fixed ends of the blade are flat and their widths extend in mutually orthogonal planes in the first and second directions (x and z).
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: December 21, 1993
    Assignee: Hutchinson
    Inventors: Frederic Noe, Michel Domer
  • Patent number: 5133225
    Abstract: An electronic foot pedal for outputting an electrical signal proportional to the degree a treadle is pivoted. The electronic foot pedal has an improved spring arrangement for yieldably biasing the treadle toward its home position. Dual springs are provided, independently mounted and supplementary to each other. Each spring has an adequate biasing force to urge the treadle to its home position. The springs are of a ribbon-like material that are wound into a flat spiral. The springs are subjected mainly to bending forces and have flexure as the treadle is pivoted to its pivotal limits.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: July 28, 1992
    Assignee: Williams Controls, Inc.
    Inventors: Chester E. Lundberg, Keith A. Neubauer, Jeffrey L. Davis, James G. Honyak, Christopher D. Nordeen
  • Toy
    Patent number: 4869704
    Abstract: Spring-like element for use as a toy or the like consisting of a coil of copper tape of high width-to-thickness ratio forming an elongated frusto-conical structure that exhibits spring characteristics combined with dry friction damping.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: September 26, 1989
    Assignee: Fisher Industries, Inc.
    Inventor: Martin Fisher
  • Patent number: 4830343
    Abstract: A vibration or impact isolator for use between bodies and/or structures, such as between a boat and a dock, is formed from a resilient elongated strip of resiliently flexible material of uniform lateral cross-section wherein longitudinal lateral portions of the strip are formed in the shape of open involutes extending through at least 270 degrees in the unbiased or undeformed condition. An intermediate portion or central portion of the strip between the two lateral edges, which connects the involutes, is deformable on mounting of the longitudinal strip to one of the bodies.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: May 16, 1989
    Inventors: William G. Johnson, Lerue C. Kleppinger, Jr.
  • Patent number: 4778159
    Abstract: A range spring assembly for a differential pressure responsive device which includes a spring retainer plate configured for coaction with a movable portion of a device, such as a bellows or diaphragm. A flat spiral spring in spaced relation to the retainer plate is provided with a clamp disc. A plurality of helical range springs are equiangularly disposed about a circumference inwardly of the periphery of the retainer plate, each of the range springs having a first end thereof securely attached to the retainer plate adjacent the center thereof, with the other ends being selectively attachable to the clamp disc, whereby the range may be readily established by locking one or more ends of the helical springs for providing the desired spring bias for the selected range.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 18, 1988
    Assignee: ITT Corporation
    Inventor: William J. Cooper
  • 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