Patents by Inventor Chris Hentschel

Chris Hentschel 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: 5690093
    Abstract: A range hood having a sleek, modern appearance has a keypad and control circuit which enable adjustment of fan speed and light intensity. The range hood includes a keypad having a linear array of keys which may be individually or collectively used to energize the fan at one of a variety of speeds. A control circuit responds to depression of one or a group of two of the keys and in response selects one of a plurality of possible fan speeds. The array of keys is also used in conjunction with a separate night light key to program the intensity of the light for use as a night light. An automatic shutoff key is used to gradually reduce the fan speed until, ultimately, the fan is deenergized.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: November 25, 1997
    Assignee: Nutone, Inc.
    Inventors: Anthony L. Schrank, Robert Voosen, Chris Hentschel