Patents by Inventor Peter Donald Fraley

Peter Donald Fraley 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).

  • Heater/blower unit with load control
    Patent number: 6541740
    Abstract: A substantially constant load impedance electrical heater has been provided. The heater is comprised of two sections, a first heater and a second heater. The first heater is continuously “on” to provide the bulk of the heat. A second heater is selectively engaged to provide slightly more heat to the medium, heating the medium to the desired temperature. The output temperature of the heated medium is maintained by controlling the duty cycle of the second heater. More drastic changes in temperature are accomplished by changing the power continuously dissipated by the first heater. The greatest heating control is obtained by defining the first and second heaters as subsets from a bank of selectable heater elements. A method of minimizing fluctuations in the loading of a high-wattage electrical device is also provided.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: April 1, 2003
    Assignee: Augustine Medical, Inc.
    Inventors: Allen Hamid Ziaimehr, Albert Philip Van Duren, Peter Donald Fraley
  • Heater/blower unit with load control
    Publication number: 20020030048
    Abstract: A substantially constant load impedance electrical heater has been provided. The heater is comprised of two sections, a first heater and a second heater. The first heater is continuously “on” to provide the bulk of the heat. A second heater is selectively engaged to provide slightly more heat to the medium, heating the medium to the desired temperature. The output temperature of the heated medium is maintained by controlling the duty cycle of the second heater. More drastic changes in temperature are accomplished by changing the power continuously dissipated by the first heater. The greatest heating control is obtained by defining the first and second heaters as subsets from a bank of selectable heater elements. A method of minimizing fluctuations in the loading of a high-wattage electrical device is also provided.
    Type: Application
    Filed: October 3, 2001
    Publication date: March 14, 2002
    Inventors: Allen Hamid Ziaimehr, Albert Philip Van Duren, Peter Donald Fraley
  • Heat/blower unit with load control
    Patent number: 6355915
    Abstract: A substantially constant load impedance electrical heater has been provided. The heater is comprised of two sections, a first heater and a second heater. The first heater is continuously “on” to provide the bulk of the heat. A second heater is selectively engaged to provide slightly more heat to the medium, heating the medium to the desired temperature. The output temperature of the heated medium is maintained by controlling the duty cycle of the second heater. More drastic changes in temperature are accomplished by changing the power continuously dissipated by the first heater. The greatest heating control is obtained by defining the first and second heaters as subsets from a bank of selectable heater elements. A method of minimizing fluctuations in the loading of a high-wattage electrical device is also provided.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: March 12, 2002
    Assignee: Augustine Medical, Inc.
    Inventors: Allen Hamid Ziaimehr, Albert Philip Van Duren, Peter Donald Fraley