Patents Assigned to Don Whitley Scientific Ltd
  • User access port for controlled atmosphere apparatus
    Patent number: 8695679
    Abstract: The invention relates to a user access port for a controlled atmosphere apparatus comprising a porthole extending through a wall; a sealing assembly comprising a first sealing means and a second sealing means for maintaining a sealing barrier across the porthole, whereby the first sealing means comprises a first closure member that is adapted to at least substantially seal the porthole when arranged in a closed position and allow user access to the porthole when arranged in an open position; the second sealing means is mounted so as to extend at least substantially across the porthole and comprises a sealed access member and a second closure member, whereby the sealed access member comprises a user access aperture having a peripheral edge adapted to form a sealing contact with an arm of a user when an operator extends his arm through the user access aperture and whereby the second closure member is adapted to at least substantially seal the user access aperture when arranged in a closed position and at least
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 15, 2014
    Assignee: Don Whitley Scientific Ltd.
    Inventors: David Boast, Evan Jonathan Kitsell
  • USER ACCESS PORT FOR CONTROLLED ATMOSPHERE APPARATUS
    Publication number: 20120096773
    Abstract: The invention relates to a user access port for a controlled atmosphere apparatus comprising a porthole extending through a wall; a sealing assembly comprising a first sealing means and a second sealing means for maintaining a sealing barrier across the porthole, whereby the first sealing means comprises a first closure member that is adapted to at least substantially seal the porthole when arranged in a closed position and allow user access to the porthole when arranged in an open position; the second sealing means is mounted so as to extend at least substantially across the porthole and comprises a sealed access member and a second closure member, whereby the sealed access member comprises a user access aperture having a peripheral edge adapted to form a sealing contact with an arm of a user when an operator extends his arm through the user access aperture and whereby the second closure member is adapted to at least substantially seal the user access aperture when arranged in a closed position and at least
    Type: Application
    Filed: June 23, 2010
    Publication date: April 26, 2012
    Applicant: Don Whitley Scientific Ltd
    Inventors: David Boast, Evan Jonathan Kitsell