Patents by Inventor Erik G. Furugard

Erik G. Furugard 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).

  • Acoustical stethoscope with electrical filter
    Patent number: 4821327
    Abstract: The stethoscope comprises a membrane (2) sensor (1) connected by a tube (3) to ear-pieces (8 & 9). The tube (3) traverses a casing (10) containing an electrical unit connected by a cable (12) to an electrical sensor (11). The electrical unit is sensitive to a given frequency range and comprises an electro-acoustic emitter (19) supplying acoustic signals into conduit (3) which are obtained in response to signals coming from the sensor (11) according to a predetermined scheme.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: April 11, 1989
    Inventors: Erik G. Furugard, Charles Caron