Patents by Inventor Richard Donovan Marquess

Richard Donovan Marquess 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: 4080835
    Abstract: A linear accelerometer is contained within a combination framework and case having a magnetic circuit including an annular gap with a magnetic flux density therethrough. An insulated bearing mount is fixed within the framework carrying a pair of opposed axially adjustable bearings defining a pivot axis. The bearings are supported in a resilient mass. A moving member carries a pair of pivots which seat in the bearings allowing motion of the moving member about the pivot axis. The moving member carries a torque coil disposed in the annular gap. Pick-off coils are mounted on the framework closely spaced from opposing planar conducting surfaces on the moving member. A pair of flexible leads extend between the framework and the moving member, providing electrical power to the torque coil. The flexible leads are disposed proximate to the pivot axis and at substantially 180.degree. separation thereabout to reduce static and dynamic torques on the moving member.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: March 28, 1978
    Assignee: Systron-Donner Corporation
    Inventor: Richard Donovan Marquess