Patents by Inventor Afro Manotti

Afro Manotti 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).

  • Automatic system for suppressing the ground noise of apparatus for measuring the knocking
    Patent number: 3950981
    Abstract: A system for automatically suppressing any ground noise present in the detection of periodic phenomena comprising detecting means for detecting the signal occurring just prior to the occurrence of the periodic phenomena, which signal is representative of ground noise, converting means for converting the sensed signal to a usable D.C. level signal, sampling means for sampling the signal resulting from the occurrence of the periodic phenomena, and summation means for algebraically adding the converted D.C. signal to the sampled signal for eliminating any ground noise present in the sampled signal, thereby providing an output signal representative of the periodic output phenomena free of any ground noise.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: April 20, 1976
    Assignee: Snam Progetti S.p.A.
    Inventors: Virgilio Arrigoni, Bruno Gaetani, Afro Manotti