Patents by Inventor Omer Vulkan
Omer Vulkan 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).
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Patent number: 9403432Abstract: A valve for a fuel tank is provided, comprising a housing configured with a float chamber and a disk chamber being in flow communication through an intermediate flow path. The disk chamber is configured with a fluid outlet port from the intermediate flow path and a valve outlet and a fluid inlet port is sealable by a sealing member of a float member axially displaceable within the float chamber to selectively facilitate fluid flow to or from the float chamber via the valve. The fluid outlet port is sealable by a pressure holding member axially having an under pressure bleed valve displaceable between a sealed position wherein the under pressure bleed valve is sealed, and an open position wherein the under pressure bleed valve is open, providing passage of fluid therethrough.Type: GrantFiled: August 31, 2011Date of Patent: August 2, 2016Assignee: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Rahamim
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Patent number: 9393862Abstract: Provided is a roll-over fuel valve configured with a float-sealable fluid path module including a float member axially displaceable within a float housing, between an open position and a closed position. The float member is normally biased in direction of the closed position and the float member includes an open liquid chamber for collecting liquid, thus taking part in the force equilibrium acting on the float member.Type: GrantFiled: January 31, 2012Date of Patent: July 19, 2016Assignee: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Rahamim
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Publication number: 20150151631Abstract: Provided is a roll over fuel-vapor valve is provided including a housing defining a valve having a valve inlet port extending through a wall of the housing and a valve outlet port and a float member disposed between said inlet port and said outlet port and being displaceable between an open position and a closed position said hosing further comprising a fluid flow channel extending along a top portion thereof and having a first end and a second end, wherein said outlet port extending into said channel such that in said open position fluid flow is facilitated between said valve inlet port and said channel.Type: ApplicationFiled: March 21, 2013Publication date: June 4, 2015Applicant: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Alon Rahamim, Vladimir Olshanetsky, Denis Kleyman
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Patent number: 8950382Abstract: A fuel vapor control valve comprising a housing. The housing comprising inlet and outlet ports in flow communication via first and second valve controlled passages. The first valve controlled passage being configured to admit fuel vapor flow in a direction from the inlet port to the outlet port only when pressure at the inlet port exceeds a predetermined threshold. The second valve controlled passage being configured to admit vapor flow in a direction from the outlet port to the inlet port only when pressure at the inlet port drops below pressure at the outlet port. The fuel vapor control valve further comprising a sealing arrangement disposed at an external portion of the housing between the inlet and outlet ports.Type: GrantFiled: December 1, 2009Date of Patent: February 10, 2015Assignee: Raval A.C.S. Ltd.Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Levy
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Publication number: 20140026976Abstract: Provided is a roll-over fuel valve configured with a float-sealable fluid path module including a float member axially displaceable within a float housing, between an open position and a closed position. The float member is normally biased in direction of the closed position and the float member includes an open liquid chamber for collecting liquid, thus taking part in the force equilibrium acting on the float member.Type: ApplicationFiled: January 31, 2012Publication date: January 30, 2014Applicant: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Rahamim
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Publication number: 20130312841Abstract: Provided is a fuel valve including a uniform valve housing accommodating a roll-over valve (ROV), an over-pressure relief valve (OPR) and a pressure retention valve (PRV), wherein a pressure retention disc is substantially axially displaceable within a top chamber of the valve housing, between a normally closed portion in which it sealingly bears over an outlet port of the flow path and an open position; the pressure retention disc is configured with a cutout portion at least partially enveloping a pressure relief port of the valve.Type: ApplicationFiled: March 13, 2012Publication date: November 28, 2013Inventors: Omer Vulkan, Vladimir Olshanetsky, Alexander Khiliminsky
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Publication number: 20130153051Abstract: A valve for a fuel tank comprising a housing configured with a float chamber and a disk chamber being in flow communication through an intermediate flow path. The float chamber configured with a valve inlet which is in fluid communication with the fuel tank and a fluid inlet port into the intermediate flow path. The disk chamber configured with a fluid outlet port from said intermediate flow path and a valve outlet and the fluid inlet port is sealable by a sealing member of a float member axially displaceable within the float chamber to selectively facilitate fluid flow to or from the float chamber via the valve, and the fluid outlet port is sealable by a pressure holding member axially displaceable within the disk chamber to selectively facilitate fluid flow into or out of said fluid outlet port.Type: ApplicationFiled: August 31, 2011Publication date: June 20, 2013Applicant: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Rahamim
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Patent number: 8376180Abstract: A fuel tank comprising at least one fuel vapor accessory articulately coupled with a fuel tubing extending within the fuel tank. The tubing extends from a field end of the tank towards an outlet end thereof, and is formed with at least one aperture between the field end and the outlet end. The fuel vapor accessory is disposed between the field end and the outlet end. The tubing is secured to an inside upper wall of the fuel tank.Type: GrantFiled: May 31, 2007Date of Patent: February 19, 2013Assignee: Raval A.C.S. Ltd.Inventors: Omer Vulkan, Moshe Ehrman
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Patent number: 8176935Abstract: A fuel vapor control valve comprising a housing fitted with an inlet port connectable to a fuel tank and an outlet port connectable to a fuel vapor recovery device. The inlet port and the outlet port are in flow communication via a first valve controlled passage admitting fuel vapor flow in a direction from the inlet port to the outlet port only when pressure within the fuel tank exceeds a threshold. A second valve controlled passage admits vapor flow in an opposite direction from the outlet port to the inlet port only when pressure within the fuel tank drops below pressure at the fuel vapor recovery device.Type: GrantFiled: December 7, 2005Date of Patent: May 15, 2012Assignee: Raval A.C.S. Ltd.Inventors: Moshe Ehrman, Ilan Akian, Omer Vulkan
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Patent number: 8109285Abstract: A roll-over vent valve comprising a housing formed with a fluid inlet and a fluid outlet, a valve seating bounding an outlet aperture of the housing, a float member received within the housing and axially displaceable between a sealed position wherein a sealing member thereof sealingly bears against the valve seating of the outlet aperture to seal the fluid outlet, and an open position wherein the sealing member is disengaged from the valve seating whereby the fluid outlet is in flow communication with the fluid inlet. There is further provided a pressure-retention device extending intermediate the valve seating and the fluid outlet, to thereby shut fluid flow therebetween as long as pressure differential between the fluid inlet and the fluid outlet does not exceed a minimal pressure threshold.Type: GrantFiled: September 19, 2006Date of Patent: February 7, 2012Assignee: Raval A.C.S. Ltd.Inventors: Moshe Ehrman, Omer Vulkan, Ilan Akian
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Patent number: 8091583Abstract: Disclosed is a valve having a housing formed with a downstream port and an upstream port, with an axially displaceable plunger biased into sealing engagement of a major flow path extending between the downstream port and the upstream port for admitting flow only in the upstream direction, with the plunger formed having a normally closed minor flow path for admitting flow only in a downstream direction.Type: GrantFiled: February 22, 2006Date of Patent: January 10, 2012Assignee: Raval A.C.S. Ltd.Inventors: Vladimir Olshanetsky, Ilan Akian, Yaron Kaspi, Paul Handy, Omer Vulkan
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Patent number: 7913712Abstract: A fuel tank made of a plastic material and fitted with at least one fuel accessory attached to an inside surface of a wall thereof, wherein the fuel accessory is attached to a predetermined site at the inside surface by fusion welding. Further there is disclosed a fuel accessory for attaching to a site at an inside wall portion of a plastic material fuel tank, comprising a housing formed with an engaging surface attachable to the site. The engaging surface is fitted with a fusion melting element for fusion welding the fuel accessory to the fuel tank.Type: GrantFiled: June 23, 2008Date of Patent: March 29, 2011Assignee: Raval A.C.S. Ltd.Inventors: Omer Vulkan, Yehoshua Kleinberg, Moshe Ehrman
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Publication number: 20100139625Abstract: A fuel vapor control valve comprising a housing. The housing comprising inlet and outlet ports in flow communication via first and second valve controlled passages. The first valve controlled passage being configured to admit fuel vapor flow in a direction from the inlet port to the outlet port only when pressure at the inlet port exceeds a predetermined threshold. The second valve controlled passage being configured to admit vapor flow in a direction from the outlet port to the inlet port only when pressure at the inlet port drops below pressure at the outlet port. The fuel vapor control valve further comprising a sealing arrangement disposed at an external portion of the housing between the inlet and outlet ports.Type: ApplicationFiled: December 1, 2009Publication date: June 10, 2010Applicant: RAVAL A.C.S. LTD.Inventors: Omer VULKAN, Vladimir OLSHANETSKY, Alon LEVY
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Patent number: 7694665Abstract: A liquid vapor separator for a vehicle's fuel system, said liquid vapor separator comprising a body having an inlet connectable with a venting system of a fuel tank and a vapor outlet connectable to a fuel vapor treating device, and a condensation space for condensation of fuel droplets, said space being in flow communication with said inlet and with said outlet, and said condensation space extending at or being in flow communication with a filler neck of the fuel system.Type: GrantFiled: February 4, 2008Date of Patent: April 13, 2010Assignee: Raval A.C.S. Ltd.Inventors: Moshe Ehrman, Omer Vulkan, Vladimir Olshanetsky, Karl-Peter Grun, Ibrahim Koukan
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Publication number: 20090321461Abstract: A fuel tank comprising at least one fuel vapor accessory articulately coupled with a fuel tubing extending from the fuel tank. The tubing is secured to an inside upper wall of the fuel tank.Type: ApplicationFiled: May 31, 2007Publication date: December 31, 2009Applicant: RAVAL A.C.S. LTD.Inventors: Omer Vulkan, Moshe Ehrman
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Publication number: 20090126805Abstract: A valve (10) comprising a housing (12) formed with a downstream port (14) and an upstream port (28), with an axially displaceable plunger (34) biased into sealing engagement of a major flow path (78) extending between the downstream port (14) and the upstream port (28) for admitting flow only in the upstream direction. The plunger is formed with a normally closed minor flow path (86) for admitting flow only in a downstream direction.Type: ApplicationFiled: February 22, 2006Publication date: May 21, 2009Inventors: Vladimir Olshanetsky, Ilan AKian, Yaron Kaspi, Paul Handy, Omer Vulkan
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Publication number: 20090071543Abstract: A fuel valve comprising a primary valve and a pressure responsive auxiliary valve, both being axially accommodated and displaceable within a common housing formed with a fluid inlet and a fluid outlet port, and a partition extending between the primary valve and the auxiliary valve. The partition comprising a flow passage extending between a primary port at a bottom face of the partition and an auxiliary port at a top face of the partition. The primary port is sealable by a sealing member of the primary valve and the auxiliary port sealable by a sealing member of the auxiliary valve.Type: ApplicationFiled: February 4, 2007Publication date: March 19, 2009Applicant: RAVA; A.C.S. LTD.Inventors: Omer Vulkan, Moshe Ehrman, Avigail Bar-Lev
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Publication number: 20090000599Abstract: A fuel tank made of a plastic material and fitted with at least one fuel accessory attached to an inside surface of a wall thereof, wherein the fuel accessory is attached to a predetermined site at the inside surface by fusion welding. Further there is disclosed a fuel accessory for attaching to a site at an inside wall portion of a plastic material fuel tank, comprising a housing formed with an engaging surface attachable to the site. The engaging surface is fitted with a fusion melting element for fusion welding the fuel accessory to the fuel tank.Type: ApplicationFiled: June 23, 2008Publication date: January 1, 2009Applicant: Raval A.C.S. LtdInventors: Omer Vulkan, Yehoshua Kleinberg, Moshe Ehrman
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Publication number: 20080283196Abstract: A fuel tank made of a plastic material and fitted with at least one fuel accessory attached to an inside surface of a wall thereof, wherein the fuel accessory is attached to a predetermined site at the inside surface by fusion welding. Further there is disclosed a fuel accessory for attaching to a site at an inside wall portion of a plastic material fuel tank, comprising a housing formed with an engaging surface attachable to the site. The engaging surface is fitted with a fusion melting element for fusion welding the fuel accessory to the fuel tank.Type: ApplicationFiled: May 22, 2008Publication date: November 20, 2008Applicant: RAVAL-AGRICULTURE COOPERATIVE SOCIETIES LTD.Inventors: Omer Vulkan, Yehoshua Kleinberg, Moshe Ehrman
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Publication number: 20080184972Abstract: A liquid vapor separator for a vehicle's fuel system, said liquid vapor separator comprising a body having an inlet connectable with a venting system of a fuel tank and a vapor outlet connectable to a fuel vapor treating device, and a condensation space for condensation of fuel droplets, said space being in flow communication with said inlet and with said outlet, and said condensation space extending at or being in flow communication with a filler neck of the fuel system.Type: ApplicationFiled: February 4, 2008Publication date: August 7, 2008Applicant: Raval A.C.S. Ltd.Inventors: Moshe Ehrman, Omer Vulkan