Patents by Inventor Duc Hoang Tran

Duc Hoang Tran 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).

  • Method of controlling the operation of a cooking appliance
    Patent number: 6060698
    Abstract: An integrated circuit constructed to provide control functions to a toaster oven cooking appliance. Said control functions including compensation for input voltage fluctuations, compensation for residual heat due to recycling, audible signal generation, multiple mode selection, safety shut off and others. The integrated circuit also provides flexibility to accommodate multiple models of an appliance in a product line.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: May 9, 2000
    Assignee: HP Intellectual Corp.
    Inventors: Christie Petrides, Duc Hoang Tran
  • Multi-function control module for toaster oven appliance
    Patent number: 5948305
    Abstract: An integrated circuit constructed to provide control functions to a toaster oven cooking appliance. The control functions including compensation for input voltage fluctuations, compensation for residual heat due to recycling, audible signal generation, multiple mode selection, safety shut off and others. The integrated circuit also provides flexibility to accommodate multiple models of an appliance in a product line.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: September 7, 1999
    Assignee: HP Intellectual Corp.
    Inventors: Christie Petrides, Duc Hoang Tran
  • Light sensitive control for toaster
    Patent number: 5672288
    Abstract: In a toaster, a system is constructed to vary the duration of the toasting cycle. An RC network provides an oscillating signal to a counter, which upon the required number of oscillations being counted, triggers a transistor switch. The switch energizes the main solenoid switch which in turn deactivates the heating elements of the toaster. The RC network of the system comprises a variable resistor which may be manually operated, a heat sensitive resistor, and a light sensitive resistor.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: September 30, 1997
    Assignee: Black & Decker Inc.
    Inventor: Duc Hoang Tran