Patents by Inventor Marcus De Mowbray

Marcus De Mowbray 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: 5487320
    Abstract: A drum and drum gauge have a head supported on a cylindrical shell which is open at its bottom and provided with tensioning bolts for tensioning the head to tune the drum. The drum shell is detachably connected to a stand. The stand can be easily folded to a closed position for ease of transport. The tuning part of the drum comprises a plurality of arms extending substantially horizontally and radially from a tension bolt at one end, through a bushing in the shell, to a central operating rod at the other. Upward movement of the central rod moves the tension bolts downwards, with a lever action, increasing the tension of the drum head. The lower end of the central rod is attached to a foot lever pivotable about a horizontal access and carrying a pedal for applying a brake. A gauge for indicating the drum's pitch has a fixed scale and a movable indicator coupled to the foot lever by a sheathed cable.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: January 30, 1996
    Inventor: Marcus De Mowbray