Packing Expander Or Constrictor Patents (Class 267/1.5)
  • Patent number: 9726286
    Abstract: A combination oil ring includes a pair of upper and lower side rails and a spacer expander arranged therebetween, the spacer expander including a plurality of upper pieces and lower pieces alternately arranged in a circumferential direction with the pieces axially and circumferentially apart from each other, a coupling piece coupling pieces adjacent to each other, and flange portions formed standing at inner circumferential-side end portions of the upper pieces and the lower pieces so as to press the side rails, and a through hole being formed in the flange portions, wherein side rail support portions that project axially are formed at portions in the circumferential direction of outer circumferential-side end portions of the upper pieces and the lower pieces.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 8, 2017
    Assignee: TPR CO., LTD
    Inventors: Noriaki Ayuzawa, Atsushi Nakazawa, Masahide Hama, Toshiyuki Shibuya
  • Patent number: 9618115
    Abstract: A combined oil control ring comprising a pair of circular side rails each having a gap, and a waved spacer expander longitudinally sandwiched by the side rails, which has seating tabs for pushing inner surfaces of the side rails on the inner side, (a) the radial thickness a1 of the side rail being 50-90% of the height a9 of the spacer expander, or (b) the height a10 of the seating tab being 23-60% of the height a9 of the spacer expander.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: April 11, 2017
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventors: Hiroyuki Yabune, Masaaki Fujita, Hiroyuki Sugihara
  • Patent number: 9512735
    Abstract: The present disclosure relates generally to a sliding seal between two components. At least one of the two components includes a ramped surface on which the sliding seal slides during relative movement between the two components.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 6, 2016
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Timothy M. Davis
  • Patent number: 9458933
    Abstract: A combination oil ring prevented from freeze up of the side rails and spacer expander, that is, a combination oil ring of the present invention provided with a top and bottom pair of side rails 11 and 12 and a spacer expander 13 having large numbers of top pieces 14 and bottom pieces arranged separated in the axial direction and circumferential direction and alternating in the circumferential direction, connecting pieces 16 connecting adjoining top pieces 14 and bottom pieces 15, and ear parts 17 and 18 formed rising up at the inner circumference side ends of the top pieces 14 and bottom pieces 15 for pushing against the side rails 11 and 12, in which combination oil ring 10, grooves 19 and 20 are formed in at least one surfaces of top surfaces of the top pieces 14 and bottom surfaces of the bottom pieces 15, and through holes 17a and 18a by which the grooves 19 and 20 are communicated are formed in the ear parts 17 and 18.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 4, 2016
    Assignee: TPR Co., Ltd.
    Inventors: Noriaki Ayuzawa, Masahide Hama, Yutaka Kitazume
  • Patent number: 9303765
    Abstract: A combined oil control ring comprising a pair of circular side rails each having a gap, and a spacer expander longitudinally sandwiched by the side rails, which has seating tabs for pushing inner surfaces of the side rails on the inner side, a side rail-pushing surface of each seating tab being provided with one or more grooves extending substantially longitudinally; each of the side rail-pushing surfaces including the grooves being provided with a nitride layer, and the depth d (?m) of the grooves, the surface hardness h (micro-Vickers hardness HV0.1) of the nitride layer, and the thickness t (?m) of the nitride layer having micro-Vickers hardness HV0.1 of 700 or more meeting the relation of the 0.05?1000×d/(h×t)?0.45??(1).
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: April 5, 2016
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventor: Akira Kunimoto
  • Patent number: 9010740
    Abstract: Coil, tube, and other structures configured with a plurality of individual coils, internal structures, legs or extensions with each having multiple cants per coil, internal structure, leg or extension, and wherein the cants formed therein allow for a load-deflection force when each is compressed. In addition, any horizontal or moment forces are substantially reduced and/or eliminated when a downward vertical force is applied, as minimal or no torsion is created in the individual coils, legs or extensions.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 21, 2015
    Assignee: Veloce Labs, LLC
    Inventor: Mark L. Jaster
  • Patent number: 8998181
    Abstract: In accordance with one embodiment of the present disclosure, an apparatus includes a connection body and a connection element arranged at least partially within the connection body. The connection body is operable to couple to a first element in a link arrangement and the connection element is operable to couple to a second element in the link arrangement. The apparatus further includes a metallic spring system arranged circumferentially around at least a portion of the connection element. The metallic spring system is operable to compress in response to relative movement between the connection body and the connection element.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: April 7, 2015
    Assignee: Bell Helicopter Textron Inc.
    Inventor: Joseph R. Carpenter, Jr.
  • Patent number: 8931766
    Abstract: A damper assembly including a cover having at least one aperture therein, a flange operatively connected to the cover, and a spring having at least one leg engaged with a radially outer surface of the flange, the spring having at least one post engaged in the aperture of the cover, wherein engaging the post in the aperture preloads the spring against the radially outer surface of the flange for exerting a force on the damper.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: January 13, 2015
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventor: Craig Kneidel
  • Patent number: 8590867
    Abstract: A canted coil spring includes a plurality of canted coils generally canted relative to a centerline extending through the coils. At least one coil when viewed in the direction of the centerline appears to have a non-elliptical shape and a non-circular shape when the at least one coil is in the unbiased state. The plurality of coils is generally canted at a first coil angle relative to the center line. The at least one coil includes at least one section canted at a second coil angle relative to the centerline. The second coil angle is different from the first coil angle when the at least one coil is in an unbiased state.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: November 26, 2013
    Assignee: Bal Seal Engineering, Inc.
    Inventor: Gordon Leon
  • Publication number: 20130168906
    Abstract: A helical compression spring, preferably of steel, in particular CrSi steel or CrNi steel, comprises a coating which has at least one a-C:H: Me coating or a plurality of layers of CrN (16) and a-C:H: Me coatings (14) alternately. In a method for coating a helical compression spring, preferably of steel, a plurality of layers of CrN and a-C:H: Me coatings are applied alternately.
    Type: Application
    Filed: February 17, 2011
    Publication date: July 4, 2013
    Applicant: FEDERAL-MOGUL BURSCHEID GMBH
    Inventors: Marcus Kennedy, Han-Rainer Brillert, Michael Zinnabold
  • Patent number: 8167285
    Abstract: A spring latching connector includes a housing having a bore therethrough, a piston slidably received in said bore, circular groove formed in one of said bore and piston and a circular coil spring disposed in said groove for latching said piston and housing together. The groove is sized and shaped for controlling, in combination with a spring configuration, disconnect and connect forces of the spring latching connection.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: May 1, 2012
    Assignee: Bal Seal Engineering Co., Inc.
    Inventor: Peter J. Balsells
  • Patent number: 8091993
    Abstract: An ink containment system for an inkjet cartridge, for storing ink for printing, comprises a housing having a plurality of walls. A rigid basin member and a rigid moveable plate are disposed within the housing. A flexible membrane is affixed to a surface of the basin member and to a surface of the plate forming an ink reservoir within the basin member, plate and flexible membrane. A spring-biased mechanism is disposed between the basin member and plate, for biasing the plate apart from the basin member, generating a negative pressure within the ink reservoir and the basin member remaining stationary relative to the movement of the plate.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: January 10, 2012
    Assignee: Videojet Technologies Inc.
    Inventors: Charles W. Gilson, Thomas E. Kimerling, Mark R. Thackray, Kenneth E. Trueba, Scott T. Benigni, John P. Folkers
  • Patent number: 8066036
    Abstract: A complex coil and a fixture for forming same configured such that loops are formed having various configurations relative to each other. The configurations provide improved thrombus formation and reduced rotation or tumbling once implanted. The complex coil is formed of a material that may deformed for purposes of placing the complex coil into a catheter and returns to a complex shape that includes said loops once deployed.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 29, 2011
    Assignee: Microvention, Inc.
    Inventors: Richard Monetti, George Martinez, Matthew Fitz, Damian Jonathan Perez
  • Publication number: 20100090379
    Abstract: A spring latching connector includes a housing having a bore therethrough, a piston slidably received in said bore, a circular groove formed in one of said bore and piston and a circular coil spring disposed in said groove for latching said piston and housing together. The groove is sized and shaped for controlling, in combination with a spring configuration, disconnect and connect forces of the spring latching connection.
    Type: Application
    Filed: November 9, 2009
    Publication date: April 15, 2010
    Inventor: Peter J. Balsells
  • Publication number: 20100001475
    Abstract: This invention describes a piston ring consisted of a “C” shaped spiraled wire acting as an expander for a seal ring of a softer material such as Teflon or Nylon; also acting as a split sealing device between two adjacent surfaces.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 7, 2010
    Inventor: Robert Janian
  • Patent number: 7416770
    Abstract: A reinforcement ring, includes an annular coil spring with a core unit arranged inside to prevent deforming or twisting of the ring under load. The core unit is formed from a chain of interlinked elements, each having a male part and a female part; the male parts of each element being engaged with corresponding female parts of an adjoining element.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: August 26, 2008
    Assignee: Bronnteknologiutvikling AS
    Inventor: Espen Hiorth
  • Publication number: 20040245686
    Abstract: A spring latching connector includes a housing having a bore therethrough, a piston slidably received in said bore, a circular groove formed in one of said bore and piston and a circular coil spring disposed in said groove for latching said piston and housing together. The groove is sized and shaped for controlling, in combination with a spring configuration, disconnect and connect forces of the spring latching connection.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Inventor: Peter J. Balsells
  • Publication number: 20030034594
    Abstract: A spring bushing, in particular for prestressing a piezoelectric actuator in a valve for controlling fluids, is disclosed, which is a one-piece deep-drawn part, which is hollow and at least approximately cylindrical. The one-piece body is provided with a number of openings distributed over the circumference and length of the body.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 20, 2003
    Applicant: Robert Bosch GmbH
    Inventors: Dietmar Schmieder, Uwe Bruetsch