Patents by Inventor Brian Leonard

Brian Leonard 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).

  • Buoyancy control apparatus for divers
    Patent number: 4101998
    Abstract: A buoyancy control system for carrying by a diver has a fluid-tight reservoir comprised of a plurality of parallel longitudinally extending passageways, into which water and compressed gas can be selectively admitted through respective inlet valves to displace gas and water respectively in the reservoir through respective outlet valves. The relative amounts of water and gas in the reservoir can therefore be adjusted to provide a required degree of buoyancy for the diver.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 25, 1978
    Inventor: Brian Leonard Buckle
  • Buoyancy control apparatus for divers
    Patent number: 4009583
    Abstract: A buoyancy control system for carrying by a diver has a fluid-tight reservoir, preferably of looped tubing, into which water and compressed gas can be selectively admitted through respective inlet valves to displace gas and water respectively in the reservoir through respective outlet valves. The relative amounts of water and gas in the reservoir can therefore be adjusted to provide a required degree of buoyancy for the diver.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: March 1, 1977
    Inventor: Brian Leonard Buckle
  • Ductility of molybdenum and its alloys
    Patent number: 3982970
    Abstract: The workability of a Group VIA metal, such as molybdenum, or an alloy of a Group VIA metal is improved by heat treating the Group VIA metal or alloy of the Group VIA metal in an environment for causing particles to be formed in the Group VIA metal or alloy of the Group VIA metal, and cooling the Group VIA metal or alloy of the Group VIA metal at a rate sufficiently rapid to prevent formation of particles large enough to cause embrittlement thereof. A ductile, recrystallized molybdenum or alloy thereof may thereby be produced.
    Type: Grant
    Filed: August 27, 1974
    Date of Patent: September 28, 1976
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: Thomas Hutchinson Webster, Brian Leonard Eyre
  • Post for cart
    Patent number: D379705
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: June 3, 1997
    Assignee: Rubbermaid Commercial Products, Inc.
    Inventors: Paul E. Delmerico, Brad Forrest, Brian Leonard, Joel Wittkamp