Patents by Inventor David M. Hornby

David M. Hornby 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: 6044512
    Abstract: A rotary foam buffing pad is provided with a concave working face which allows the operator to provide true graduated surface contact in applying polish, buffing or glazing compounds, while containing the polishing compound against centrifugal force which would otherwise result in splattering of the compound. The manner in which the concave working face is formed and in which the edge face is formed and dressed results in dynamic balancing of the pad and reducing vibration and operator fatigue. The working surface forming and pad finishing operations further provide a velvetized texture to the pad working surfaces which further enhances the polishing or finishing process.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: April 4, 2000
    Assignee: Lake Country Manufacturing, Inc.
    Inventors: David M. Hornby, Scott S. McLain, Richard A. Kaiser
  • Patent number: 5944586
    Abstract: Apparatus and method for both cleaning and polishing work surfaces such as automotive panels using a single combination pad. In one embodiment, a support holds a circular replaceable, disposable cleaning/polishing pad on a powered polishing tool for rotation about the pad's central axis. The illustrated pad is made of compressible/expandable material such as foam. The pad has front and rear recesses that define concentric radially outer and inner sections. The inner section is thinner and has a forward cleaning surface. The outer section normally protrudes forwardly of the cleaning surface so that when it is first brought into engagement with a work surface, the cleaning surface does not engage the work surface. A pressure-applying backup plate of a firm material such as neoprene has a forwardly displaced inner portion that is received in the pad rear recess for applying firm pressure to the pad cleaning surface. The plate has an outer portion for applying pressure to the outer pad section.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: August 31, 1999
    Assignee: Meguiar's Inc.
    Inventors: Claude Sevigny, David M. Hornby