Elliptic Patents (Class 267/42)
  • Patent number: 10962075
    Abstract: To increase a compactness of damping systems intended to operate in the event of a dynamic landing of an aircraft, a damping system comprises a primary damper device and a secondary damper device. The primary damper device comprises at least one beam, each beam extending along a direction of a longitudinal axis. The damping system is configured so that at rest, the primary damper device has a stiffness greater than a stiffness of the secondary damper device in the direction of the longitudinal axis. When a force is applied to the damping system along the direction of the longitudinal axis, with a value less than a limit value, each beam remains in a compression state. When the force applied has a value greater than or equal to the limit value, each beam undergoes buckling and the secondary damper device undergoes elastic deformation.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 30, 2021
    Inventors: Jérôme Dubost, Guilhem Colombies, Julien Guesdon
  • Patent number: 10557533
    Abstract: A linear motion mechanism with precise linear motion has structural robustness and allows easy reduction in weight and size, simple production and easy operation. The linear motion mechanism includes: an elastic arrangement which is arranged to transform an input direction and an input displacement to an output direction and an output displacement, wherein the output direction is orthogonal to the input direction; an operating member which is arranged to deform the elastic arrangement in the input direction by the input displacement; and a movable member fixed to the elastic arrangement to move in the output direction by the output displacement.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 11, 2020
    Assignee: NEC Corporation
    Inventors: Minoru Kurose, Kazuo Hamada, Yoshihiko Katsuyama, Takashi Kamizono, Takuro Kobayashi, Naoto Tanimichi, Tsui Happy
  • Patent number: 9776467
    Abstract: A systems and apparatus to decouple an axle and a leaf spring of a vehicle are disclosed herein. In some embodiment, the apparatus includes a spacer block. The spacer block has a main body having an upper surface and two opposing side surfaces with an opening formed in each of the two opposing side surfaces of the main body to form a passage through the main body. The spacer block allows the leaf spring to rotate independent of the axle.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 3, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Sean P. Gaw, Donald C. McWilliam
  • Patent number: 9421837
    Abstract: A golf cart vehicle is disclosed having a suspension that includes a single suspension device that provides for a plurality of functions. In one embodiment the single suspension device includes a plurality of transverse mounted leaf springs that are longitudinally spaced apart from one another to provide a spring and control arm combined effect. The leaf springs can be coupled to a wheel, such as through a steering knuckle via a ball and socket joint. The leaf springs can further be mounted to a chassis via clamps. In one embodiment the clamps are connected to the leaf springs through resilient bushings which can be spaced apart from one another to provide an anti-roll bar effect.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 23, 2016
    Assignee: Ingersoll-Rand Company
    Inventors: Ryan Douglas Lake, Byron Jon Danielson
  • Patent number: 8894735
    Abstract: The intake device for an engine includes a carburetor section and an air cleaner section. The carburetor section includes a body having an intake passage which has an opening communicating with the air cleaner section and a choke valve being a butterfly valve having a plate-like valve body. The air cleaner section includes an air filter, an air-flow chamber provided between the air filter and the intake passage, and a reverse-flow restriction surface provided within the air-flow chamber. The air cleaner section further includes a plate-like partition extending from a location near an air-cleaner side periphery of the valve body of the choke valve in the full-open position to a location near the reverse-flow restriction surface so as to continue the periphery.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 25, 2014
    Assignee: Yamabiko Corporation
    Inventors: Takahiro Yamazaki, Ken Shirai, Hisato Osawa, Yuji Numakunai
  • Patent number: 4736932
    Abstract: A spring (10) includes a tube (12) having an elliptical cross section, with the greater axial dimension (22) extending laterally and the lesser axial dimension (24) extending vertically. A plurality of cuts (20) in the form of slots passing through most of a wall of the tube (12) extend perpendicularly to a longitudinal axis (16) extending along the tube (12). An uncut portion (26) of the tube wall extends along the tube (12) for bonding or fastening the tube to a suitable base, such as a bottom (28) of a seat cushion (30).
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: April 12, 1988
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Leonard A. Haslim
  • Patent number: 4708353
    Abstract: A ski-sledge is disclosed which comprises steering column, a front ski, two guide rods and two rear skis. The front ski is pivoted on the steering column, while both guide rods are connected at their front ends in common with the steering column and at their rear ends to a rear ski coordinated therewith. The connection between rear skis and guide rods is accomplished by first pivot joints comprising annular spring assembly, which are deformable radially and peripherally, but substantially rigid in directions transverse to the annulus plane. Second pivot joints comprising similar annular spring assemblies serve for connection between guide rods and the steering column. However, the latter spring assemblies are nearly rigid in radial direction. Due to these features the ski-sledge is easier and more precisely to ride and generally better to handle.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: November 24, 1987
    Inventor: Jean-Yves Evequoz
  • Patent number: 4696517
    Abstract: A dumping mechanism for a dumping toy truck with a rear deck is disclosed, which is provided with a covering element for preventing invasion of dust and gravel through a large hole for a lifting rod, as well as a buffering pad for a bearing shaft for the rear deck and a flexible buffer at the lower end of the lifting rod for absorbing any sudden shock or loading applied by an infant.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: September 29, 1987
    Assignee: Shinsei Kogyo Co., Ltd.
    Inventor: Toshiaki Nagano
  • Patent number: 4579320
    Abstract: Improvements to the various components of hydrostatic bearing levitation systems, systems wherein fluid pressure between a load and the rails of a track system supports and guides the load, are described. The rail has a plurality of lengthwise extending ports and nozzles communicating from the innermost ports through the curved upper wall to the interface area between the rail and the load. The nozzles are arranged in longitudinally aligned groups and in a pair of parallel rows with the groups of one row being longitudinally staggered with respect to the groups of the other row. The nozzles can be inexpensively produced by boring an oversize hole through the upper wall and fixing a cannula, such as a hypodermic needle, in the bore. The cannula's internal diameter is the desired nozzle diameter. The load support member has a compliant outer cover, a central core, and a filler material wound tightly on the core.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: April 1, 1986
    Assignee: E. B. Eddy Forest Products, Ltd.
    Inventor: Herbert E. Gladish
  • Patent number: 4567615
    Abstract: The arrangement comprises mounting supports for the spring slats, insertable in the longitudinal beams of the bedstead, with two upper spring-slats serving as a support for the mattress and undulating spring-slats situated below them. A tiltable holding part having four receptacles for the spring-slats is fitted on a plug of the mounting support. Below the plug there is a resilient bearing pad enabling the holding part to deflect vertically. The upper spring-slats are bent convexly upward and have a broadened cross-section in the middle. By means of the undulating lower spring-slats, a progressive spring action is achieved. There is no sagging of the mattress in the region of heavier parts of the body, optimum spring action being ensured nonetheless. It is possible to divide the bedstead into zones of differing degrees of firmness by selectively providing mounting supports with only upper spring-slats or with additional lower spring-slats.
    Type: Grant
    Filed: January 4, 1984
    Date of Patent: February 4, 1986
    Assignee: Matra AG
    Inventor: Hansruedi Fanti
  • Patent number: 4460167
    Abstract: The end mounting blocks of full elliptic leaf spring suspension systems are preferably retained by flanged ends on the leaf springs protruding into corresponding openings or slots on the end blocks. The end blocks also include end walls adapted to be abuttingly engageable with the flanged ends. By such a construction, the end blocks are restricted or limited from excessive movement in either a forward or rearward direction relative to the leaf spring ends. The end blocks also include load-receiving members for engaging the ends of the leaf springs whereby the area of load-transferring engagement between the end blocks and the leaf spring ends increases as the leaf springs resiliently deflect under increased load on the suspension system.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: July 17, 1984
    Assignee: NI Industries, Inc.
    Inventors: John E. Silvis, William W. Fant