Patents Assigned to Bermuda Research Corp.
  • Patent number: 4492341
    Abstract: A portable hand-held material broadcasting device having a housing with a manually engageable handle and providing a storage chamber for flowable granular material superimposed over a normally horizontally rotating impeller for gravitational flow of material from the chamber to the impeller, a valve member movable to regulate the material flow and having closed, intermediate and full open positions, a manually displaceable actuating member positioned adjacent the handle and having a connection to the valve member for displacement thereof, and a manually adjustable cam member for limiting the opening movement of the valve member and corresponding position of the actuating member for setting the rate of flow of the material, the improvement of the invention including a stop mounted on the handle and positioned to engage and support the actuating member when moved to its full open position, and a special connection being made between the actuator member and the valve member to permit forced displacement of the a
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: January 8, 1985
    Assignee: Bermuda Research Corp.
    Inventor: Francis F. Allen
  • Patent number: 4140280
    Abstract: A hand-held, manually-operated duster for propelling a controlled stream of pulverulent material, such as an insecticide dust, onto vegetables, roses, flowers, shrubs and small trees and the like and which comprises a unitary housing providing a material hopper and separate impeller and drive chambers, a rotary impeller being mounted in the impeller chamber and a hand crank and gear train being mounted in or associated with the drive chamber and connected to the impeller, powder being fed from the hopper to the impeller for discharge in a controlled stream.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: February 20, 1979
    Assignee: Bermuda Research Corp.
    Inventors: Francis F. Allen, James C. Nichol