Patents by Inventor Martin G. Whitehouse

Martin G. Whitehouse 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: 4444174
    Abstract: The invention concerns a device for parting tiles, particularly ceramic tiles, along a predetermined path. The device includes measuring means having a caliper arrangement to measure the width of an area to be covered by a tile, a tile-receiving region including a fixed point and a slidable member, said member having an elongate slot in which is engageable a cutting edge of a combined scoring and parting means, also provided with tile parting jaws. The caliper arrangement may be arranged to allow for a grouting gap.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: April 24, 1984
    Assignee: Plas Plugs Limited
    Inventors: Paul S. Hepworth, Martin G. Whitehouse
  • Patent number: 4349059
    Abstract: The invention relates to a blade holder of the hacksaw type which comprises a C-shaped portion spanned by a blade having a conventional pair of projections being receivable in a slot having a cruciform or T-slot in one arm of the C-shape and the other pair in a similar slot formed in a lever pivotted to the other arm. Movement of the lever from a loading position to an operative position imparts tension to the blade and in the example shown, involves movement into an over-center condition of the lever with respect to its pivotal mounting. The lever has an abutment surface projecting outwardly from its end portion adjacent the pivotal mounting so as to contact the second arm member when the lever is in its loading position to thereby act as an end stop.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: September 14, 1982
    Assignee: Plas Plugs Limited
    Inventors: Paul S. Hepworth, Martin G. Whitehouse
  • Patent number: RE32548
    Abstract: The invention concerns a device for parting tiles, particularly ceramic tiles, along a predetermined path. The device includes measuring means having a caliper arrangement to measure the width of an area to be covered by a tile, a tile-receiving region including a fixed point and a slidable member, said member having an elongate slot in which is engageable a cutting edge of a combined scoring and parting means, also provided with tile parting jaws. The caliper arrangement may be arranged to allow for a grouting gap.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: November 24, 1987
    Assignee: Plas Plugs Ltd.
    Inventors: Paul S. Hepworth, Martin G. Whitehouse