Patents by Inventor Paolo Cibrario

Paolo Cibrario 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).

  • Spiral pumping stage and vacuum pump incorporating such pumping stage
    Patent number: 9702374
    Abstract: A spiral pumping stage includes both centripetal and centrifugal pumping channels, so that the gas is pumped from the periphery to the center of the pumping stage throughout a first group of pumping channels and it is pumped from the center to the periphery of the pumping stage throughout a second group of pumping channels. Thanks to this inventive arrangement, both the gas coming from a previous pumping stage or a main pump inlet arranged upstream the pumping stage according to the invention and the gas coming from the additional side inlet can be effectively pumped by the pumping stage according to the invention.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: July 11, 2017
    Assignee: Agilent Technologies, Inc.
    Inventors: Enrico Emelli, Paolo Cibrario
  • SPIRAL PUMPING STAGE AND VACUUM PUMP INCORPORATING SUCH PUMPING STAGE
    Publication number: 20140205433
    Abstract: A spiral pumping stage includes both centripetal and centrifugal pumping channels, so that the gas is pumped from the periphery to the center of the pumping stage throughout a first group of pumping channels and it is pumped from the center to the periphery of the pumping stage throughout a second group of pumping channels. Thanks to this inventive arrangement, both the gas coming from a previous pumping stage or a main pump inlet arranged upstream the pumping stage according to the invention and the gas coming from the additional side inlet can be effectively pumped by the pumping stage according to the invention.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 24, 2014
    Inventors: Enrico Emelli, Paolo Cibrario