Search Patents
  • Automatic refill system for ultra pure or contamination sensitive chemicals
    Publication number: 20020014275
    Abstract: A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system with fail-safe redundancy; and an evacuation system which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.
    Type: Application
    Filed: August 2, 2001
    Publication date: February 7, 2002
    Applicant: Arch Specialty Chemicals, Inc.
    Inventors: Christopher S. Blatt, Richard H. Pearce, Graham Williams, Edward H. Wentworth
  • Automatic refill system for ultra pure or contamination sensitive chemicals
    Patent number: 6435224
    Abstract: A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system with fail-safe redundancy; and an evacuation system which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 20, 2002
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Christopher S. Blatt, Richard H. Pearce, Graham Williams, Edward H. Wentworth, III
  • Automatic refill system for ultra pure or contamination sensitive chemicals
    Patent number: 6604555
    Abstract: A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system with fail-safe redundancy; and an evacuation system which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: August 12, 2003
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Christopher S. Blatt, Richard H. Pearce, Graham Williams, Edward H. Wentworth, III