Patents Assigned to Niro-Soavi S.p.A.
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Patent number: 8585277Abstract: A homogenizer valve (1) comprising a ring-shaped first chamber (5) with an inlet (8) for receiving fluid under high pressure, a second ring-shaped chamber (7) with an outlet (9) for fluid under low pressure, a passage head (10) and, between the first and the second chamber, an impact head (11) which is axially mobile with respect to the passage head (10) and acts together with it to define a gap between the impact head (11) and the passage head (10) forming a passage (14) for the fluid passing from the first chamber to the second chamber, and a pusher (15) acting on the impact head (11) to push it in an axial direction towards the passage head (10) thus partially counteracting the pressure exerted by the fluid contained in the first chamber (5) on the annular surface (13) of the impact head (11), this passage (14) comprising at least a first portion (20) and a second portion (21) positioned in sequence between the first chamber and the second chamber, and where the first portion faces in a radial direction anType: GrantFiled: April 29, 2008Date of Patent: November 19, 2013Assignee: Gea Niro Soavi S.p.A.Inventors: Simone Grandi, Silvia Grasselli
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Publication number: 20100296363Abstract: A homogenizer valve (1) comprising a ring-shaped first chamber (5) with an inlet (8) for receiving fluid under high pressure, a second ring-shaped chamber (7) with an outlet (9) for fluid under low pressure, a passage head (10) and, between the first and the second chamber, an impact head (11) which is axially mobile with respect to the passage head (10) and acts together with it to define a gap between the impact head (11) and the passage head (10) forming a passage (14) for the fluid passing from the first chamber to the second chamber, and a pusher (15) acting on the impact head (11) to push it in an axial direction towards the passage head (10) thus partially counteracting the pressure exerted by the fluid contained in the first chamber (5) on the annular surface (13) of the impact head (11), this passage (14) comprising at least a first portion (20) and a second portion (21) positioned in sequence between the first chamber and the second chamber, and where the first portion faces in a radial direction anType: ApplicationFiled: April 29, 2008Publication date: November 25, 2010Applicant: GEA NIRO SOAVI S.P.A.Inventors: Simone Grandi, Silvia Grasselli
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Publication number: 20090202374Abstract: A high pressure homogenizer provided with head (1) for the treatment of products with solids and fibres comprises a block (2) defining a passage (3) for the product from an intake area (4) to a delivery area (5), a piston movable axially with reciprocating motion in the block (2) to pump the product in said passage (3), from the intake area (4) to the delivery area (5), intake (7) and delivery (8) valves positioned internally to the block (2) and operatively active on said passage (3) to open it/close as a function of a motion of the products in the passage.Type: ApplicationFiled: March 29, 2007Publication date: August 13, 2009Applicant: GEA NIRO SOAVI S.P.A.Inventors: Marco Gandini, Simone Grandi, Luca Salvarani, Mauro Bandini
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Patent number: 7240862Abstract: Method for disrupting S. Cerevisiae yeast cells in an aqueous solution, by means of a continuous process under high pressure (up to 4000 bar), using a homogenizer. The suspension to be processed passes through a homogenizing valve with a “sharp edge” or “knife edge” passage head in order to achieve a 100% cell disruption rate with a single passage, at a dynamic pressure equal to or above 2000 bar. The “sharp edge” or “knife edge” profile of the passage head (4) is characterized by an inside diameter (9) of 10.9-14 mm and an outside diameter (10) of 11.9 mm-15 mm, and operates at a flow rate of 100-500 liters/hour and a dynamic pressure of more than 2000 bar.Type: GrantFiled: September 10, 2004Date of Patent: July 10, 2007Assignee: Niro-Soavi S.p.A.Inventors: Silvia Grasselli, Marco Gandini, Simone Grandi
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Patent number: 7144149Abstract: A homogenization valve comprises an outer case, a homogenization mechanism contained in the outer case and having at least one homogenization device. The homogenization device comprises a high pressure chamber, in communication with a chamber for feeding the high pressure fluid to be homogenized, a low pressure chamber in communication with a channel for discharging the low pressure homogenized fluid. The high pressure chamber is connected to the low pressure chamber by means of a fluid blow-by port. The valve comprises at least two distinct homogenization devices connected in parallel with a same feeding channel and with a same discharge channel.Type: GrantFiled: February 6, 2004Date of Patent: December 5, 2006Assignee: Niro-Soavi S.p.A.Inventors: Simone Grandi, Marco Gandini
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Patent number: 5887971Abstract: In a homogenization unit, a homogenizing valve comprises an impact head which, with a lower valve body, forms an annular high-pressure chamber (64) supplied by a high pressure channel (24). An annular surface of the impact head cooperates with an opposite face of a passage head (22) accommodated in the lower valve body to define a radial passage gap, with an impact ring facing it; the gap leads into a low-pressure annular chamber (54) from which a low pressure channel (34) leads off. The impact head comprises two spaced out guide areas to guide the head in the valve body.Type: GrantFiled: May 29, 1997Date of Patent: March 30, 1999Assignee: Niro Soavi S.p.A.Inventors: Marco Gandini, Adelmo Volpi, Silvia Grasselli