Patents by Inventor Adrian Michael Griffiths

Adrian Michael Griffiths has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7694983
    Abstract: A suspension system having an upper link, a lower wishbone, a vertical hub carrier and an interlinking wishbone. The upper link is coupled, via a first spherical joint, to a vehicle sub-frame and, via a second spherical joint, to the hub carrier, the lower link is coupled, via bushings, to the sub-frame and, via a third spherical joint, to the hub carrier. The interlinking wishbone is coupled, via a hinge joint, to the lower wishbone and, via a fourth spherical joint, to the upper link. The hinge joint and the fourth spherical joint are substantially equidistant between the respective joints of the upper link and lower wishbone coupling the sub-frame and the hub carrier. The fourth spherical joint is offset from a line joining the first and the second spherical joints. The distance between the first and the second spherical joints is substantially equal to the distance between the bushings and the third spherical joint.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: April 13, 2010
    Assignees: Mira Limited
    Inventor: Adrian Michael Griffiths
  • Publication number: 20080191441
    Abstract: A suspension system has an upper link mounted at an inner end to a vehicle body or subframe by an inner spherical joint and connected at an outer end to an upper end of a vertically extending hub carrier, by an outer spherical joint; a lower wishbone, the lower wishbone being mounted at an inner end to a vehicle body or subframe for pivotal movement about a horizontal, longitudinally extending axis, by means of a pair of spaced compliant bushes and connected at an outer end to a lower end of the hub carrier by a lower spherical joint; and an interlinking wishbone, the interlinking wishbone being pivotally connected at a lower end to the lower wishbone, intermediate of the inner and outer ends thereof, by a hinge or revolute joint, the interlinking wishbone being connected at an upper end to the upper link by an intermediate spherical joint, the centre of rotation of the intermediate spherical joint being offset from a line joining the centres of rotation of the inner and outer spherical joints, the intermedia
    Type: Application
    Filed: May 24, 2006
    Publication date: August 14, 2008
    Applicants: MIRA LIMITED
    Inventor: Adrian Michael Griffiths
  • Patent number: 7210695
    Abstract: A suspension system for a vehicle with a chain driven rear wheel includes: a rear suspension assembly and chain driven transmission arrangement that offers very high levels of anti-brake lift and anti-squat and does so consistently through a large range of rear suspension movement; a front suspension assembly/steering system with a steering axis inclined in the side view at an angle of castor which intersects the ground in front of the center of the contact patch, the front suspension assembly having a high degree of anti-brake dive; the front and rear suspension assemblies being interconnected in such a way as to offer low resistance to anti-phase motion and higher resistance to in-phase motion.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 1, 2007
    Inventor: Adrian Michael Griffiths
  • Patent number: 6471218
    Abstract: In an active roll control system for a vehicle, anti-roll bars (26, 30) are provided with actuators (28, 32) which can provide a torque in the anti-roll bars to control vehicle body roll. Under certain cornering conditions when the vehicle is liable to over-steer, the pressure supply to the actuators is pulsed so that the front wheels of the vehicle tend to break away more easily, thereby reducing over-steer.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: October 29, 2002
    Assignee: Land Rover Group Limited
    Inventors: William Burdock, Adrian Michael Griffiths, Jing Shen Tang
  • Patent number: 5829764
    Abstract: The suspension comprises a wheel support constrained to move about an axis of rotation relative to the vehicle body by a linkage arrangement connected between the wheel support and mountings on the vehicle body. The linkage arrangement has first and second arm members arranged such that imaginary extensions thereof intersect at a point outside of the centre of a wheel mounted on said wheel support and to the rear of the axis of rotation of the wheel and has a third linkage between said vehicle body and said wheel support which is connected to the vehicle body at a position that lies outwardly from the position at which the second arm is coupled to the vehicle body and to the rear of an imaginary line extending between the position of connection of the first arm to the body and the position of connection of the second arm to the vehicle body.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: November 3, 1998
    Assignee: Rover Group Limited
    Inventor: Adrian Michael Griffiths