Patents by Inventor Harold Chambers

Harold Chambers 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: 5682873
    Abstract: A new Camping Stove Baking Attachment Device for offering an apparatus that can be used in conjunction with a camping stove to provide an oven for baking food. The inventive device includes an attachment housing, a lid, a plurality of lid vents, a food plate, a base plate and an elongated exhaust tube aperture. In use the attachment housing (16) is placed on a camping stove (2) allowing it to come to rest against a bottom side of the base plate (30). Food (4) is then placed on an upper side of the food plate (20). Finally, the lid (12) is placed upon the attachment housing (16). Combustion exhaust flow (24) is routed up through the base plate flame vents 32, the elongated exhaust tube aperture (22), and the lid vents (15). Consequently, the food (4) is baked without ever coming into contact with a flame.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: November 4, 1997
    Inventor: Harold Chambers
  • Patent number: 4115144
    Abstract: A high solids metal oxides coated titanium dioxide aqueous slurry requires a negative charge and a high pH for use in aqueous paint media. A hot ageing of the coated titanium dioxide can alter the isoelectric point of the slurry and make practicable the avoidance of mixtures of metal oxide coating agents which give rise to processing difficulties and the use of mixtures of metal oxides which would not without the hot ageing step give suitable charge and pH characteristics. An example of a suitable mixture of metal oxide coating agents is a 1:1 molar Al.sub.2 O.sub.3 : TiO.sub.2 mixture. An example of hot ageing conditions is the use of a temperature of 98.degree. C - 100.degree. C for 1 hour while avoiding loss of water and under alkaline conditions.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: September 19, 1978
    Assignee: Laporte Industries Limited
    Inventors: Hubert Harold Chambers, Brian John Tear