Patents by Inventor Yuk Nam Lam

Yuk Nam Lam 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: 6900402
    Abstract: The present invention provides a mini switch assembly at low costs and being able to display on or off state of it. The switch assembly in accordance with the present invention includes a pushbutton that has an opening allowing a transparent cover installed in it; a circuit board having a circuit and defining a first conductive section being insulated with a second conductive section; a conductive elastic part coupled to but its body section separated from the first conductive section. When the pushbutton applies a force to the elastic part, the body section is forced to contact the second conductive section and as a result, the first conductive section is conductively coupled with the second conductive section, triggering a drive circuit on the circuit board to provide power to turn the LED on. Also, the elastic part has an opening aligned with the pushbutton opening to allow the LED to be installed on the circuit board via these two openings.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: May 31, 2005
    Assignee: Jeckson Electric Co., Ltd.
    Inventors: Yuk Nam Lam, King Mo Shum
  • Patent number: 6876172
    Abstract: The present invention relates to a portable battery charger, which includes a charger body of charge circuit coupled to a power supply and a battery compartment pivotally coupled to the charger body. The battery compartment rotates pivotally around the charger body to provide a fold position at which both battery compartment and charge body form one unit and a charge position at which at least one battery is inserted into the battery compartment for charging. The battery charger in accordance with the present invention shrinks its size to the charger body with a feature of easy carry.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: April 5, 2005
    Assignee: Jeckson Electric Co., Ltd.
    Inventors: Yuk Nam Lam, King Mo Shum
  • Publication number: 20040130289
    Abstract: The present invention relates to a portable battery charger, which includes a charger body of charge circuit coupled to a power supply and a battery compartment pivotally coupled to the charger body. The battery compartment rotates pivotally around the charger body to provide a fold position at which both battery compartment and charge body form one unit and a charge position at which at least one battery is inserted into the battery compartment for charging. The battery charger in accordance with the present invention shrinks its size to the charger body with a feature of easy carry.
    Type: Application
    Filed: August 19, 2003
    Publication date: July 8, 2004
    Inventors: Yuk Nam Lam, King Mo Shum
  • Publication number: 20040129544
    Abstract: The present invention provides a mini switch assembly at low costs and being able to display on or off state of it. The switch assembly in accordance with the present invention includes a pushbutton that has an opening allowing a transparent cover installed in it; a circuit board having a circuit and defining a first conductive section being insulated with a second conductive section; a conductive elastic part coupled to but its body section separated from the first conductive section. When the pushbutton applies a force to the elastic part, the body section is forced to contact the second conductive section and as a result, the first conductive section is conductively coupled with the second conductive section, triggering a drive circuit on the circuit board to provide power to turn the LED on. Also, the elastic part has an opening aligned with the pushbutton opening to allow the LED to be installed on the circuit board via these two openings.
    Type: Application
    Filed: January 6, 2004
    Publication date: July 8, 2004
    Applicant: JECKSON ELECTRIC CO., LTD
    Inventors: Yuk Nam Lam, King Mo Shum
  • Patent number: D446187
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: August 7, 2001
    Assignee: Jeckson Electric Co., Ltd.
    Inventors: Yuk Nam Lam, King Mo Shum
  • Patent number: D457134
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 14, 2002
    Assignee: Jeckson Electric Co., Ltd.
    Inventors: Yuk Nam Lam, King Mo Shum