Patents Assigned to VONROLL INFRATEC (INVESTMENT) AG
-
Publication number: 20210340742Abstract: A backflow preventer adapted for installation in an inner conduit of a hose coupling of a hydrant is disclosed. The backflow preventer contains a non-return device having a closing body, a seal seat, and a resetting device. The resetting device is adapted to resiliently pretension the closing body into sealing engagement against the seal seat.Type: ApplicationFiled: September 27, 2019Publication date: November 4, 2021Applicant: VONROLL INFRATEC (INVESTMENT) AGInventor: Christoph FLURY
-
Patent number: 10865549Abstract: A hydrant has a riser pipe and a shut-off element which can be brought from at least one open position into at least one closed position and vice versa. The shut-off element in the closed position seals the interior of the riser pipe from a hydrant inlet. The hydrant comprises at least one first passage, by which the interior can be fluidically connected to the outside of the hydrant, and one second passage, by which the pressurized hydrant inlet can be fluidically connected to the outside of the hydrant, wherein the first passage and the second passage can be brought into operative connection with each other. The operative connection produces a vacuum by water flowing through the second passage such that water in the interior of the riser pipe is led away via the first passage and the riser pipe is thereby drained.Type: GrantFiled: February 16, 2016Date of Patent: December 15, 2020Assignee: VONROLL INFRATEC (INVESTMENT) AGInventors: Sascha Wenger, Andreas Schütz
-
Patent number: 10787798Abstract: A shut-off element of a hydrant with a hydrant axis. The shut-off element has a valve stem that is axially movable substantially along the hydrant axis, and a main valve body that can be brought into sealing contact with a sealing surface of the hydrant. The shut-off element has a damping system that is inserted between the main valve body and the valve stem or in a section of the valve stem or between an actuating element of the valve stem and the valve stem or in the actuating element itself, so that the main valve body is coupled to the valve stem axially dampened by the damping system along the hydrant axis.Type: GrantFiled: June 8, 2016Date of Patent: September 29, 2020Assignee: VONROLL INFRATEC (INVESTMENT) AGInventor: Sascha Wenger
-
Publication number: 20200240526Abstract: The shut-off element of a hydrant has a main valve body and a sealing surface that can be brought into mutual sealing contact, of which the sealing surface at least in sections is provided with a recess on the inner circumference.Type: ApplicationFiled: September 25, 2018Publication date: July 30, 2020Applicant: VONROLL INFRATEC (INVESTMENT) AGInventor: Sascha WENGER
-
Publication number: 20190226184Abstract: A shut-off element of a hydrant with a hydrant axis. The shut-off element has a valve stem that is axially movable substantially along the hydrant axis, and a main valve body that can be brought into sealing contact with a sealing surface of the hydrant. The shut-off element has a damping system that is inserted between the main valve body and the valve stem or in a section of the valve stem or between an actuating element of the valve stem and the valve stem or in the actuating element itself, so that the main valve body is coupled to the valve stem axially dampened by the damping system along the hydrant axis.Type: ApplicationFiled: June 8, 2016Publication date: July 25, 2019Applicant: VONROLL INFRATEC (INVESTMENT) AGInventor: SASCHA WENGER
-
Publication number: 20190119887Abstract: A hydrant has a riser pipe and a shut-off element which can be brought from at least one open position into at least one closed position and vice versa. The shut-off element in the closed position seals the interior of the riser pipe from a hydrant inlet. The hydrant comprises at least one first passage, by which the interior can be fluidically connected to the outside of the hydrant, and one second passage, by which the pressurized hydrant inlet can be fluidically connected to the outside of the hydrant, wherein the first passage and the second passage can be brought into operative connection with each other. The operative connection produces a vacuum by water flowing through the second passage such that water in the interior of the riser pipe is led away via the first passage and the riser pipe is thereby drained.Type: ApplicationFiled: February 16, 2016Publication date: April 25, 2019Applicant: VONROLL INFRATEC (INVESTMENT) AGInventors: Sascha WENGER, Andreas SCHÜTZ
-
Patent number: 9708005Abstract: A wheel suspension for a vehicle with a supporting vehicle element includes at least one pair of single-sided swing arms. Each single-sided swing arm is associated with a hydraulic cylinder, which is linked to the single-sided swing arm and/or the supporting vehicle element. Each hydraulic cylinder is subdivided in a fluid-tight manner into two chambers.Type: GrantFiled: October 29, 2015Date of Patent: July 18, 2017Assignee: VONROLL INFRATEC (INVESTMENT) AGInventors: Rino Reusser, Raphael Voisard, Stefan Kayser
-
Publication number: 20160121687Abstract: A wheel suspension for a vehicle with a supporting vehicle element includes at least one pair of single-sided swing arms. Each single-sided swing arm is associated with a hydraulic cylinder, which is linked to the single-sided swing arm and/or the supporting vehicle element. Each hydraulic cylinder is subdivided in a fluid-tight manner into two chambers.Type: ApplicationFiled: October 29, 2015Publication date: May 5, 2016Applicant: VONROLL INFRATEC (INVESTMENT) AGInventors: Rino REUSSER, Raphael VOISARD, Stefan KAYSER
-
Patent number: 8590384Abstract: A vibration sensor arrangement (1) includes a vibrating mass (5) in permanent mechanical contact with a first side (3) of a piezoelectric element (2). The vibrating mass (5) includes a water-proof capsule (6) in which the piezoelectric element (2) is fixed. A dead weight (7) is in permanent mechanical contact with a second side (4) of the piezoelectric element (2) and is arranged in the water-proof capsule (6). A spring (8) is arranged between the dead weight (7) and the vibrating mass (5) and ensures permanent mechanical contact of the two masses (5,7) with the two sides (3,4) of the piezoelectric element (2). The vibration sensor arrangement (1) further includes first and second electric contacts (9,10) for picking up electric signals which are generated by the piezoelectric element (2) and for forwarding the signals to a recording device (11).Type: GrantFiled: March 21, 2007Date of Patent: November 26, 2013Assignee: Vonroll Infratec (Investment) AGInventor: Hugo Lötscher
-
Publication number: 20090044628Abstract: It relates to a vibration sensor arrangement (1).Type: ApplicationFiled: March 21, 2007Publication date: February 19, 2009Applicant: VONROLL INFRATEC (INVESTMENT) AGInventor: Hugo Lotscher