Patents by Inventor David Garfield Blanch

David Garfield Blanch 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).

  • Patent number: 7870770
    Abstract: A door lock (10) having a lock body (11), an external handle and an internal handle (12), a rotatable interconnecting member (13) to interconnect the internal handle and the external handle, and a mechanism to allow the lock to have a passage mode, and a privacy mode and a deadlock mode, in one embodiment the mechanism comprises an outer hub (14) and an internal hub (15) which are inside the lock body, in a second embodiment a remote control arrangement is provided to allow at least some of the modes to be operated manually or by remote control.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: January 18, 2011
    Assignee: Assa Abloy Australia Pty Limited
    Inventor: David Garfield Blanch
  • Publication number: 20080236213
    Abstract: A door lock (10) having a lock body (11), an external handle and an internal handle (12), a rotatable interconnecting member (13) to interconnect the internal handle and the external handle, and a mechanism to allow the lock to have a passage mode, and a privacy mode and a deadlock mode, in one embodiment the mechanism comprises an outer hub (14) and an internal hub (15) which are inside the lock body, in a second embodiment a remote control means is provided to allow at least some of the modes to be operated manually or by remote control.
    Type: Application
    Filed: January 30, 2004
    Publication date: October 2, 2008
    Inventor: David Garfield Blanch
  • Patent number: 6122946
    Abstract: Latch assemblies are disclosed including a latch bolt mounted on a casing for relative movement between an extended latching position and a retracted release position, a first actuator operable from the inner side of the assembly to cause movement of the latch bolt to the release position, a lock operable from the inner side of the assembly to adopt an active condition thus render the first actuator inoperable, a second actuator operable from an outer side of the assembly to cause movement of the latch bolt to the release position, and a lock release responsive to operation of the second actuator to render the lock inactive.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: September 26, 2000
    Assignee: Lockwood Australia Pty. Ltd.
    Inventor: David Garfield Blanch
  • Patent number: D393793
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: April 28, 1998
    Assignee: Lockwood Australia Pty Ltd.
    Inventor: David Garfield Blanch
  • Patent number: D393794
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: April 28, 1998
    Assignee: Lockwood Australia Pty Ltd
    Inventor: David Garfield Blanch
  • Patent number: D396628
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: August 4, 1998
    Assignee: Lockwood Australia Pty Ltd
    Inventor: David Garfield Blanch
  • Patent number: D402876
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Lockwood Australia Pty. Limited
    Inventors: Donald John Newman, David Garfield Blanch
  • Patent number: D402877
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Lockwood Australia Pty. Limited
    Inventors: Donald John Newman, David Garfield Blanch