Patents by Inventor Yong Te Tsau

Yong Te Tsau 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: 6641317
    Abstract: A draining structure for keyboard an upper cover having a top surface forming a number of recessed areas for accommodation of movable pushbuttons. A lower cover is releasable attached to a bottom side of the upper cover. Each recessed area has at least one draining hole, preferably in the form of an elongated slot defined in a sidewall of the recessed area. The lower cover forms a groove corresponding in position to the draining holes of the upper cover for receiving liquid from the recessed areas of the upper cover via the draining holes. A number of openings or elongated slots is defined in the bottom of the groove for expelling the liquid out of the casing. A partition wall is formed in the lower cover for separating the groove from an electric part receiving space in which electric parts are arranged for preventing electric short caused by the liquid contacting the electric parts.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: November 4, 2003
    Assignee: Behavior Tech Computer Corporation
    Inventor: Yong Te Tsau
  • Publication number: 20030198498
    Abstract: A draining structure for keyboard an upper cover having a top surface forming a number of recessed areas for accommodation of movable pushbuttons. A lower cover is releasable attached to a bottom side of the upper cover. Each recessed area has at least one draining hole, preferably in the form of an elongated slot defined in a sidewall of the recessed area. The lower cover forms a groove corresponding in position to the draining holes of the upper cover for receiving liquid from the recessed areas of the upper cover via the draining holes. A number of openings or elongated slots is defined in the bottom of the groove for expelling the liquid out of the casing. A partition wall is formed in the lower cover for separating the groove from an electric part receiving space in which electric parts are arranged for preventing electric short caused by the liquid contacting the electric parts.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 23, 2003
    Inventor: Yong Te Tsau
  • Patent number: 6375372
    Abstract: A pushbutton of a keyboard includes a cap supported on a base board by a linkage comprising first and second links pivoted together whereby the cap is movable from a released to a depressed positions when depressed. Each link has upper and lower pivots respectively connected to the cap and the base board. The links have two side bars connected between the upper and lower pivots thereof. A cross bar is connected between the side bars of the first link. A resilient arm extends from the cross bar and forms a nub on a free end thereof. A rigid arm extends from one side bar of the second link and has a wedge section having first and second surfaces forming an apex therebetween. The nub of the resilient arm is in contact engagement with the first surface when the cap is at the released position. The nub slides over the apex to reach and engage the second surface when the cap is depressed and moved to the depressed position whereby a pulse-like reaction is generated.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 23, 2002
    Assignee: Behavior Tech Computer Corporation
    Inventor: Yong Te Tsau