Patents Assigned to T.D. Preece & Co. Pty. Ltd.
  • Patent number: 5735269
    Abstract: A breathing regulator for use in underwater breathing comprising a diaphragm and poppet actuated upon user demand. The poppet including at least one baffle located intermediate its ends wherein when air is demanded by a user of the regulator air travels through the valve and continuously impinges upon the baffle and reduces the effort of the user required to operate the valve. The regulator further comprises a sleeve which is concentric about the air passage chamber which facilitates more efficient air delivery to the user. The sleeve is selectively controlled by the user either to enhance the venturi flow of air or to cancel the venturi effect, dependent upon the needs of the user.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: April 7, 1998
    Assignee: T.D. Preece & Co. Pty. Ltd.
    Inventor: Kim Preece
  • Patent number: 5437268
    Abstract: A breathing regulator for use in underwater breathing comprising a diaphragm and poppet actuated upon user demand. The poppet including at least one baffle located intermediate its ends wherein when air is demanded by a user of the regulator air travels through the valve and continuously impinges upon the baffle and reduces the effort of the user required to operate the valve. The regulator further comprises a sleeve which is concentric about the air passage chamber which facilitates more efficient air delivery to the user. The sleeve is selectively controlled by the user either to enhance the venturi flow of air or to cancel the venturi effect, dependent upon the needs of the user.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: August 1, 1995
    Assignee: T.D. Preece & Co. Pty. Ltd.
    Inventor: Kim Preece