Patents Assigned to HIGRA INDUSTRIAL LTDA
  • Patent number: 10060436
    Abstract: A progressive vortex pump comprises an inlet housing in contact with the pumped fluid, a pump housing connected to the inlet housing, and an outlet housing connected to the pump housing and connected to a pumping pipe. The pump housing comprises a disc-shaped rotor having a central bore and a rim with vanes. Each rotor comprises at least one through hole along the axial direction, the through hole being positioned between the central bore and the rotor rim. Advantageously, the presence of a through hole on the rotor enables, under operating conditions, fluid exchange from the posterior fluid film to the anterior fluid film, thus promoting a pressure balance between the posterior and anterior fluid films, therefore enabling the rotor to work evenly, preventing rubbing on adjacent diffusers.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: August 28, 2018
    Assignee: HIGRA INDUSTRIAL LTDA
    Inventor: Silvino Geremia
  • Patent number: 9562532
    Abstract: A progressive vortex pump having a pump assembly including an inlet valve in contact with a fluid and an outlet valve in contact with a pump pipe, the pump assembly is driven by a shaft connected to a motor assembly and includes a pump body with a variety of pump stages having a stator attached to the pump body, a diffuser attached to the front and rear of the stator, and a rotor coupled to the shaft inside the stator. Each pump stage includes at least two inlet stages in contact with a respective circular channel in contact with a respective outlet stage, the inlet and outlet stages are evenly distributed along the internal perimeter of the stator, and the pump stages are arranged such that each outlet stage of a front pump stage is connected to a respective inlet stage of a rear pump stage.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 7, 2017
    Assignee: HIGRA INDUSTRIAL LTDA
    Inventor: Silvino Geremia
  • Publication number: 20140061957
    Abstract: A submerged aerator is provided with a motor-pump assembly installed submerged, supported by a floating structure of a central articulation of a vertical supporting tube and rotating vertical shaft, where the aerator is provided with two propellers, also called rotors, which promote mixing and suction of atmospheric air for incorporation in the effluent, and a upper driving assembly, mounted outside the effluent and on the floatation structure, which enables the motor-pump assembly performing a partial rotating movement under the effluent due to the geometry of the crank rod system.
    Type: Application
    Filed: February 26, 2013
    Publication date: March 6, 2014
    Applicant: HIGRA INDUSTRIAL LTDA
    Inventor: Higra Industrial LTDA
  • Publication number: 20130216409
    Abstract: An amphibious pump is provided including a wet type motor with coolant and an absorbing mechanism of the expansion of the coolant inside the motor chamber, dividing it into two chambers, at least one expansion joint between an internal chamber of the motor, hermetically closed, and an equalization inner chambers and a means to equalize the internal pressure for the pumped fluid. The electric motor is immersed m a cooling liquid, usually oil, in a chamber, and, the other camera is filled with the aqueous solution, which communicates with the outside through the equalizer assembly, which can, for example, comprise a rubber mask with micro holes, which allows the exchange of water between the outer chamber and the chamber of the motor.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 22, 2013
    Applicant: HIGRA INDUSTRIAL LTDA
    Inventor: HIGRA INDUSTRIAL LTDA
  • Publication number: 20100047094
    Abstract: “Modular Amphibious Pumps.” The objective of this invention is to provide a modular pump (1) that can be installed in a series, that has a special volute (11) and impeller (12), and that can allow the entry of larger particles without damaging the system.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 25, 2010
    Applicant: HIGRA INDUSTRIAL LTDA
    Inventor: Silvino Geremia
  • Publication number: 20080124230
    Abstract: The rotary system (2), object of the present invention, is composed of a motoreducer assembly, which is coupled to a rotating shaft (5), through a pulley transmission system. At the lower part of the rotating shaft (5) the submerged pump (1) will be set.
    Type: Application
    Filed: September 6, 2007
    Publication date: May 29, 2008
    Applicant: Higra Industrial Ltda
    Inventor: Silvino Geremia
  • Publication number: 20080050249
    Abstract: PROGRESSIVE VORTEX PUMP. The objective of the present invention is to provide a progressive vortex pump, which has multiple stages, which works at the center, eliminating totally system vibration. All components of this pump are metallic, which can work at very elevated temperatures.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 28, 2008
    Applicant: Higra Industrial Ltda
    Inventor: Silvino Geremia