Patents by Inventor David W. Ha

David W. Ha 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).

  • Publication number: 20030146040
    Abstract: A dual-mode steering system (12) for an automotive vehicle (14) includes a first steering mechanism (36) and a second steering mechanism (38). A locking mechanism (72) is mechanically coupled to the first steering mechanism (36) and the second steering mechanism (38). The system (12) also includes a locking switch (40) having a first state and a second state. A controller (22) is electrically coupled to the locking mechanism (72) and the locking switch (40). The controller (22) locks the first steering mechanism (36) to the second steering mechanism (38) when the locking switch (40) is in the first state and disengages the first steering mechanism (36) from the second steering mechanism (38) when the locking switch (40) is in the second state. A method of operating the dual-mode steering system (12) is also provided.
    Type: Application
    Filed: February 4, 2002
    Publication date: August 7, 2003
    Inventors: Ronald Henry Dybalski, David W. Ha, Brian Birrell
  • Patent number: 6566616
    Abstract: A multiple switch module which is adapatable for inclusion in stalk switches, including a central cylinder, a multi-switch unit located within the central cylinder, a selections annulus rotatably mounted concentrically outside the central cylinder and operably connected by a cross-bar to a first rotary switch of the multi-switch unit, a selections cylinder rotatably mounted to a forward end of the central cylinder and operably connected to a second rotary switch of the multi-switch unit, and a selection button biasably mounted in reciprocable relation to the selections cylinder and operably connected to a momentary switch of the multi-switch unit. A slot system is formed in the central cylinder to accommodate rotative movement of the cross-bar relative to the central cylinder.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: May 20, 2003
    Assignee: Delphi Technologies, Inc.
    Inventor: David W. Ha
  • Publication number: 20030079976
    Abstract: A multiple switch module which is adapatable for inclusion in stalk switches, including a central cylinder, a multi-switch unit located within the central cylinder, a selections annulus rotatably mounted concentrically outside the central cylinder and operably connected by a cross-hair to a first rotary switch of the multi-switch unit, a selections cylinder rotatably mounted to a forward end of the central cylinder and operably connected to a second rotary switch of the multi-switch unit, and a selection button biasably mounted in reciprocable relation to the selections cylinder and operably connected to a momentary switch of the multi-switch unit. A slot system is formed in the central cylinder to accommodate rotative movement of the cross-hair relative to the central cylinder.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Inventor: David W. Ha