Patents by Inventor Calogero Di Benedetto

Calogero Di Benedetto 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).

  • Valve combination for vibration pumps
    Patent number: 6382929
    Abstract: A valve combination for vibration pumps performs multiple functions of self-priming, compensation of negative pressure and protection against over pressure. A body (12) contains a non-return valve (18). A valve (26) releases air and compensates for negative pressure. A safety valve (48) vents accidental over pressure originating, for example, from a boiler source. The valve (26) in order to achieve negative pressure compensation, comprises a plug provided with grooves or incisions (40a-c) for favoring the external flow of air subject to negative pressure.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: May 7, 2002
    Assignee: ULKA SRL
    Inventor: Calogero Di Benedetto