Patents by Inventor Ferdinand Cap

Ferdinand Cap 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).

  • Parametric electric machine
    Patent number: 4622510
    Abstract: A parametric electric machine consists of a series resonant circuit, which has a capacitance (C) which is adapted to be mechanically varied, an inductance (L) and a resistance (R). The no-load values of the capacitance (C.sub.o), inductance (L.sub.o) and resistance (R.sub.o) fulfill the threshold condition ##EQU1## and at least one of the parameters L, R and C of the resonant circuit is a function of the current flowing in the resonant circuit.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: November 11, 1986
    Inventor: Ferdinand Cap