Patents Represented by Attorney, Agent or Law Firm Douglas R. Wolf
  • Dielectric pipe joint, particularly for underground pipes
    Patent number: 6616192
    Abstract: A dielectric joint for pipes, particularly for underground pipes, comprises a male head of a first pipe which enters a mating and mutually opposite cup-shaped female head of a second pipe; a sealing insulating means is interposed between the pipes and is externally extended on the first pipe by an extent which reaches beyond the inlet edge of the female head and internally forms a tight-fitting cladding of the first and second pipes for a longitudinal extent which is at least equal to the overall length of the joint.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: September 9, 2003
    Inventor: Valter Zoboli
  • Selectively microwave-permeable membrane susceptor systems
    Patent number: 5254821
    Abstract: A selectively permeable membrane microwave susceptor for use in food packaging is disclosed. The susceptor comprises a substrate having at least one absorbing coating and at least one reflecting coating deposited thereon. Either one or both of the absorbing coating or the reflecting coating can be varied to control the amount of microwave energy reaching the absorbing coating, thereby controlling the overall amount of susceptor heating.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: October 19, 1993
    Assignee: Advanced Dielectric Technologies, Inc.
    Inventor: Glenn J. Walters
  • Dispensing device for drugs
    Patent number: D477664
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: July 22, 2003
    Assignee: Drug Delivery Solutions Pty Ltd
    Inventor: Kon Euan Wong