Patents Assigned to Raval A.C.S. Ltd.
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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: 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: 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
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Publication number: 20070102043Abstract: 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: ApplicationFiled: September 19, 2006Publication date: May 10, 2007Applicant: RAVAL A.C.S. LTD.Inventors: Moshe Ehrman, Omer Vulkan, Ilan Akian
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Patent number: 6701952Abstract: A valve (30) fitted within a fluid tank, the valve comprising a housing fitted with one or more fluid inlet ports, and an outlet port. The housing accommodates a float-type valve member (32) axially displaceable within the housing responsive to fluid level within the tank, between an open position in which the outlet port (58) is open, and a closed position in which the outlet port is sealingly closed. The housing is integrally formed with a nozzle member (60) being in flow communication with the outlet port and having a main portion with an outlet thereof extending within the tank.Type: GrantFiled: February 25, 2002Date of Patent: March 9, 2004Assignee: Raval A.C.S. Ltd.Inventors: Moshe Ehrman, Ehud Orenstein, Zohar Moalem, Yoav Livne, Valdimir Olshanetaky