Patents by Inventor Andrew Isaac Jeffryes

Andrew Isaac Jeffryes 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).

  • High pressure seal
    Patent number: 6517087
    Abstract: A seal is formed between two parts of a high pressured chamber by means of a rigid ring, which is formed with curved surfaces, that engage with an anvil and an enclosure part, the anvil having a similar curved projection. At least one of the engaging surfaces is coated with a soft metal e.g. silver.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: February 11, 2003
    Assignee: Trikon Equipments Limited
    Inventors: Andrew Isaac Jeffryes, Robert Kenneth Trowell
  • Gas delivery system
    Patent number: 6468386
    Abstract: A gas delivery system for plasma treatment apparatus includes a gas inlet, a plenum, a gas delivery plate extending across the downstream end of the plenum and a separate ionizer plate adjacent the downstream face of the gas delivery plate. The ionizer plate is formed with openings which are larger than the apertures in the gas delivery plate.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 22, 2002
    Assignee: Trikon Holdings Ltd.
    Inventor: Andrew Isaac Jeffryes
  • High pressure seal
    Publication number: 20010042963
    Abstract: A seal is formed between two parts of a high pressured chamber by means of a rigid ring, which is formed with curved surfaces, that engage with an anvil and an enclosure part, the anvil having a similar curved projection. At least one of the engaging surfaces is coated with a soft metal e.g. silver.
    Type: Application
    Filed: July 11, 2001
    Publication date: November 22, 2001
    Inventors: Andrew Isaac Jeffryes, Robert Kenneth Trowell
  • High pressure seal
    Patent number: 6279917
    Abstract: A seal is formed between two parts of a high pressured chamber by means of a rigid ring (13), which is formed with curved surfaces (17), that engage with an anvil (14) and an enclosure part (10), the anvil (14) having a similar curved projection (18). At least one of the engaging surfaces is coated with a soft metal e.g. silver.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Trikon Equipments Limited
    Inventors: Andrew Isaac Jeffryes, Robert Kenneth Trowell