Patents by Inventor Stefano CRIVELLI

Stefano CRIVELLI 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).

  • Patent number: 10365664
    Abstract: A control valve including: a valve body, a flow shutter operatively interposed between an inlet and an outlet, a driving spindle having at least a first actuating end and a second end connected to the flow shutter. The valve also includes a differential pressure automatic regulation device, comprising: a cup-shaped body arranged around the driving spindle and axially mobile with respect to said driving spindle; a spring operatively interposed between the valve body and the cup-shaped body to push the latter away from the flow shutter; a rolling membrane having a radially inner edge fixed to the cup-shaped body and a radially outer edge fixed to the valve body to delimit a first chamber in fluid communication with the inlet and a second chamber in fluid communication with the outlet.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: July 30, 2019
    Assignee: FIMCIN S.P.A.
    Inventors: Tiziano Guidetti, Alfredo Cerutti, Stefano Crivelli
  • Publication number: 20190207344
    Abstract: The disclosure relates to an electrical connector comprising a plug element with a longitudinal axis, said plug element having a plug housing with a circular cross-section and a coupling ring arrangement mounted rotatably about the longitudinal axis, wherein at least one guide lug which projects radially inward is arranged on the inner circumferential face of the coupling ring arrangement, and a socket element with a longitudinal axis, said socket element having a socket housing with a circular cross-section for accommodating the plug housing, wherein, on the outer circumferential face of the socket housing, at least one spiral-shaped guide groove is disposed for receiving the at least one guide lug of the coupling ring arrangement, and wherein, at the end of the at least one guide groove, an end position for the at least one guide lug of the coupling ring arrangement is disposed.
    Type: Application
    Filed: September 6, 2017
    Publication date: July 4, 2019
    Inventors: Mauro Marchesi, Franco Crivelli, Stefano Izzo
  • Publication number: 20180157277
    Abstract: A control valve including: a valve body, a flow shutter operatively interposed between an inlet and an outlet, a driving spindle having at least a first actuating end and a second end connected to the flow shutter. The valve also includes a differential pressure automatic regulation device, comprising: a cup-shaped body arranged around the driving spindle and axially mobile with respect to said driving spindle; a spring operatively interposed between the valve body and the cup-shaped body to push the latter away from the flow shutter; a rolling membrane having a radially inner edge fixed to the cup-shaped body and a radially outer edge fixed to the valve body to delimit a first chamber in fluid communication with the inlet and a second chamber in fluid communication with the outlet.
    Type: Application
    Filed: February 5, 2018
    Publication date: June 7, 2018
    Inventors: Tiziano GUIDETTI, Alfredo CERUTTI, Stefano CRIVELLI
  • Patent number: 9904294
    Abstract: A control valve including: a valve body, a flow shutter operatively interposed between an inlet and an outlet, a driving spindle having at least a first actuating end and a second end connected to the flow shutter. The valve also includes a differential pressure automatic regulation device, comprising: a cup-shaped body arranged around the driving spindle and axially mobile with respect to said driving spindle; a spring operatively interposed between the valve body and the cup-shaped body to push the latter away from the flow shutter; a rolling membrane having a radially inner edge fixed to the cup-shaped body and a radially outer edge fixed to the valve body to delimit a first chamber in fluid communication with the inlet and a second chamber in fluid communication with the outlet.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: February 27, 2018
    Assignee: FIMCIM S.P.A.
    Inventors: Tiziano Guidetti, Alfredo Cerutti, Stefano Crivelli
  • Publication number: 20160139605
    Abstract: A control valve including: a valve body, a flow shutter operatively interposed between an inlet and an outlet, a driving spindle having at least a first actuating end and a second end connected to the flow shutter. The valve also includes a differential pressure automatic regulation device, comprising: a cup-shaped body arranged around the driving spindle and axially mobile with respect to said driving spindle; a spring operatively interposed between the valve body and the cup-shaped body to push the latter away from the flow shutter; a rolling membrane having a radially inner edge fixed to the cup-shaped body and a radially outer edge fixed to the valve body to delimit a first chamber in fluid communication with the inlet and a second chamber in fluid communication with the outlet.
    Type: Application
    Filed: June 10, 2014
    Publication date: May 19, 2016
    Inventors: Tiziano GUIDETTI, Alfredo CERUTTI, Stefano CRIVELLI