Patents Assigned to Cesare Bonetti S.p.A.
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Patent number: 8646751Abstract: A metal seal for valves of the ball type, the metal seal including a rigid annular body including a thickness in the longitudinal direction, and an annular lip having a front surface for relative contact with a surface of the ball, wherein said front surface for making relative contact comprises inset radial grooves.Type: GrantFiled: November 30, 2010Date of Patent: February 11, 2014Assignee: Cesare Bonetti S.p.A.Inventor: Riccardi Valter
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Publication number: 20130167631Abstract: Reflective level indicator comprising a central support piece (10) extending in the vertical direction (Z-Z), a glass element (30) extending in the vertical direction (Z-Z), a pair of flanges (40) situated opposite each other for closing the indicator, seals (20;120) arranged between the glass element (30) and the support piece (10) and the closing flanges (40), wherein said flanges (40) have a C-shaped central body (41) with short arms (42) extending in the longitudinal direction (X-X) along a section with a length such as to project above, in the same direction (Y-Y), by an amount smaller than the width of the glass element (30) in the longitudinal direction, and a foot (43) which extends from one of the two arms (42) of the central body (41) in the transverse direction (Y-Y) and the free end of which has a flange (43a) bent inwards and provided with holes (43b).Type: ApplicationFiled: December 19, 2012Publication date: July 4, 2013Applicant: CESARE BONETTI S.P.A.Inventor: CESARE BONETTI S.P.A.
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Publication number: 20110127457Abstract: A metal seal for valves of the ball type, the metal seal including a rigid annular body including a thickness in the longitudinal direction, and an annular lip having a front surface for relative contact with a surface of the ball, wherein said front surface for making relative contact comprises inset radial grooves.Type: ApplicationFiled: November 30, 2010Publication date: June 2, 2011Applicant: Cesare Bonetti, S.p.AInventor: Riccardi Valter
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Patent number: 7896312Abstract: A ball valve comprising: a valve body with a seat for housing a ball provided with a coaxial through-opening and able to be rotationally operated from a closed valve position into an open valve position and vice versa; two opposite end flanges which are constrained to the valve body on opposite sides of the ball and provided with a respective, coaxial, internal hole and are suitable for connection to respective pipe sections; sealing means arranged between the valve body and the ball and comprising an annular member which is coaxial with the longitudinal axis (X-X) and carries an axial seal housed inside an associated axial seat inside which it is partially inserted in order to interfere with the outer surface of the ball, comprising a coaxial ring axially constrained to the annular seal-carrying member and interfering in the transverse direction (Y-Y) with a front surface portion of the seal in order to retain the latter in the axial direction.Type: GrantFiled: March 18, 2008Date of Patent: March 1, 2011Assignee: Cesare Bonetti S.p.A.Inventors: Giuseppe Dalmasso, Roberto Fant
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Publication number: 20080230731Abstract: A ball valve comprising: a valve body with a seat for housing a ball provided with a coaxial through-opening and able to be rotationally operated from a closed valve position into an open valve position and vice versa; two opposite end flanges which are constrained to the valve body on opposite sides of the ball and provided with a respective, coaxial, internal hole and are suitable for connection to respective pipe sections; sealing means arranged between the valve body and the ball and comprising an annular member which is coaxial with the longitudinal axis (X-X) and carries an axial seal housed inside an associated axial seat inside which it is partially inserted in order to interfere with the outer surface of the ball, comprising a coaxial ring axially constrained to the annular seal-carrying member and interfering in the transverse direction (Y-Y) with a front surface portion of the seal in order to retain the latter in the axial direction.Type: ApplicationFiled: March 18, 2008Publication date: September 25, 2008Applicant: Cesare Bonetti S.p.A.Inventors: Giuseppe Dalmasso, Roberto Fant
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Patent number: 5791653Abstract: Sealing ring (1) for sliding units (3,7) operating both at very low temperatures and at high pressures, comprising at least one pair of layers (1a) of graphite-based material alternating with at least one supporting ring (1b) made of metallic material.Type: GrantFiled: July 13, 1994Date of Patent: August 11, 1998Assignee: Cesare Bonetti S.p.A.Inventor: Stefano Berni Canani
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Patent number: 5324008Abstract: A fluid ducting valve of the type comprising an interception ball fitted with a through-duct and sealing rings interposed between such ball and fluid flow ducts, in which such through-duct of ball is located with its longitudinal axis offset in the downstream direction relative to the axis of rotation of ball, when the latter is rotated to the position of interception, the relatives distance between the longitudinal axis of duct and the axis of rotation of ball being such that upstream apertures of duct are always closed before downstream apertures move on downstream sealing rings with the valve either closed or open.Type: GrantFiled: May 5, 1993Date of Patent: June 28, 1994Assignee: Cesare Bonetti S.P.A.Inventor: Giulio Bonetti
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Patent number: 5170993Abstract: Ball valve for fluids, with sealing seat comprising rings, disposed between the spherical surface of the valve and the interior of the valve body, composed of rings formed of superimposed layers of plates of graphite alternating with plates of stainless steel sheet, the whole being contained in a casing of metal sheet covering the outer sides of the seat, except the one in contact with the spherical sealing surface.Type: GrantFiled: November 14, 1991Date of Patent: December 15, 1992Assignee: Cesare Bonetti S.p.A.Inventor: Giulio Bonetti
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Patent number: 4483193Abstract: Apparatus for the visual indication of the level of liquid contained in boilers, tanks, reservoirs or the like is described, comprising an outer tube connected to the receptacle and having a float which contains a permanent magnetic dipole. Adjacent the tube is a column of rotatably mounted bi-colored cylinders, some of which show one color and the rest another when viewed from one direction, to indicate the level of the liquid. In accordance with the invention, the permanent magnetic dipole is automatically orientated by the magnets in bi-colored cylinders as it is mounted rotatably about a vertical axis.Type: GrantFiled: August 30, 1982Date of Patent: November 20, 1984Assignee: Cesare Bonetti S.p.A.Inventor: Giulio Bonetti