Patents by Inventor Giuseppe Martinelli

Giuseppe Martinelli 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).

  • Device for maintaining a constant oil level
    Patent number: 4603666
    Abstract: The present invention relates to a device for maintaining constant the level of oil, particularly in internal combustion engines, which has the particularity of comprising a constant level reservoir (1) positioned at a pre-determined nipple level and in free communication with the oil sump (20) of an engine. The said constant level reservoir (1) is in communication with the reserve reservoir (12) which is positioned at a higher level than the constant level reservoir (1). In the constant level reservoir (1) there are provided float means (21) which control the communication duct (11) between the reserve reservoir (12) and the constant level reservoir (1).
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: August 5, 1986
    Inventor: Giuseppe Martinelli