From Above Liquid Level Patents (Class 137/176)
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Patent number: 10006456Abstract: A fully-draining check valve with a mushroom assembly having a tapered back edge and a drain line disposed with the lower rim of the drain line below the tapered back edge to ensure no fluid becomes trapped in the check valve when not in use. Additionally, a fully-draining diaphragm pump is disclosed having a drain line configured to drain the lowest point of a product chamber to ensure no fluid becomes trapped in the diaphragm pump when not in use. A method of cleaning a fully-draining diaphragm pump and fully-draining check valve assembly is further disclosed comprising inducing turbulent flow of water, wash solution, and/or sanitizer through the assembly and opening ball valves the drain lines of the fully-draining check valves to vent the assembly.Type: GrantFiled: August 1, 2014Date of Patent: June 26, 2018Assignee: Murzan, Inc.Inventor: Alberto Bazan
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Patent number: 8925569Abstract: Disclosed is a safety valve of a low-pressure gas pipe which can be installed in a large-scale pipeline through which waste gases generated in a large-scale factory such as a steel mill flow and can reduce maintenance/management costs. The safety valve of a low-pressure gas pipe installed in a waste gas pipeline to discharge condensate includes: a first pipeline connected to a bottom surface of the waste gas pipeline and having a waste gas outlet on an inner wall thereof at one side thereof; a second pipeline extending from the first pipeline to be bent and extending in a direction parallel to the first pipeline; and an opening/closing unit for opening or closing the waste gas outlet.Type: GrantFiled: November 3, 2010Date of Patent: January 6, 2015Assignee: Postech Academy—Industry FoundationInventors: Woon Bong Hwang, Jeong Hwa Seo, Wan Kyun Chung, Dong Seob Kim
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Patent number: 8419842Abstract: An air eliminator including a housing having first and second portions, the housing defining: a chamber, an inlet in fluid communication with the chamber; an outlet in fluid communication with the chamber; and an axis extending from the first portion to the second portion, a float assembly connected to the first portion of the chamber for releasing air from the chamber, and degassing disks stacked within the chamber along an axis, wherein each disk includes a plurality of rings such that the degassing disks cause micro gas pockets in water passing through the chamber to combine into relatively large and buoyant air pockets that collect and pass along the axis to the float assembly for release.Type: GrantFiled: November 5, 2010Date of Patent: April 16, 2013Assignee: Watts Regulator CompanyInventors: Steven Castrigno, James Erhardt, Paul J. Lake, Jeffrey A. Scilingo
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Publication number: 20090159136Abstract: A valve assembly comprising a support body (10), a plunger assembly (11) movable relative to the support body in an axial direction parallel with a longitudinal axis of the plunger assembly and said plunger assembly being angularly movable relative to the support body about said longitudinal axis, seal means (34) to provide a fluid seal between the support body and plunger assembly when support body and plunger assembly are in a first position relative to one another, bias means (43) acting on the plunger assembly in said axial direction to urge the plunger assembly in a first direction relative to the support body towards said first position, a fluid flow passage (28) to allow flow of fluid through the valve assembly when the plunger assembly has been moved relative to the support body away from said first position, said support body and plunger assembly having associated therewith respective abutment surfaces (19,31) engagable with one another to hold the valve assembly in an open state when the plunger assType: ApplicationFiled: May 3, 2006Publication date: June 25, 2009Inventors: Martin O'Donnell, Leslie Frank Checkley
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Patent number: 7517392Abstract: The present invention comprises a breather system and a method of using the system. The assembly has a breather tube, a baffle system at least partially located within the breather tube and a drain back tube connected to the breather tube. The baffle system has a plurality of baffles designed to prevent lubricant from escaping a housing while still allowing air to pass into and out of the housing.Type: GrantFiled: April 12, 2005Date of Patent: April 14, 2009Assignee: Dana Heavy Vehicle Systems Group LLCInventors: Matthew L. Neff, Leonard P. Stoehr, Leo Wenstrup
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Patent number: 7364609Abstract: A kit for constructing a de-aerator for a fluid distribution system includes a gas concentrator adapted to be received in chamber of a T-coupling provided with the kit. A cap is provided that closes a cap connector integrally formed with the T-coupling. The cap supports a valve that opens and closes in response to fluctuations of a level of the fluid in the cavity as air is accumulated in the cavity and discharged by an opening of the valve.Type: GrantFiled: February 7, 2005Date of Patent: April 29, 2008Inventor: James MacDuff
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Patent number: 6895816Abstract: An apparatus for detecting fluid levels in an oil and gas well environment and transmitting a signal to a remote site when sensing that the level has reached a predetermined amount.Type: GrantFiled: June 4, 2003Date of Patent: May 24, 2005Inventor: Foy Streetman
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Patent number: 6893485Abstract: A kit for constructing a de-aerator that includes a concentrator is adapted to be connected to a standard pipe coupling. The concentrator is inserted in the path of liquid conveyed through the pipe coupling for aggregating gas, and directing the gas to a cavity. The cavity is encased by the fitting which is a vertical, cylindrical sheath with one end adapted to be inserted into standard pipe couplings, and the other end adapted to be connected with the cap. The cap includes a vent adapted to open and shut in response to lowering and raising of the level of the liquid in the cavity below/above a threshold, respectively.Type: GrantFiled: May 31, 2002Date of Patent: May 17, 2005Assignee: Swabey, Ogilvy, RenaultInventor: James MacDuff
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Patent number: 4915606Abstract: A culture medium used for cultivating mushrooms is sterilized by a sterilizing apparatus. The sterilizing apparatus comprises a sterilizing container in which the culture medium is placed, a steam supply pipe for supplying steam in the sterilizing container, an exhaust pipe for exhausting steam and air in the container, and a drain pipe for draining condensate from the container. The drain pipe includes a main pipe having a relatively large diameter and a bypass pipe provided with a trap. The amounts of steam supplying and exhausting and the amount of condensate draining are controlled in accordance with a predetermined mode during the sterilizing processes by regulating valve means mounted to the respective pipes. Two exhaust pipes having different exhausting capacities may be provided in consideration of environmental conditions.Type: GrantFiled: August 22, 1988Date of Patent: April 10, 1990Assignee: Kabushiki Kaisha Tiyoda SeisakushoInventor: Tsuyoshi Shimokawa
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Patent number: 4751939Abstract: A reservoir (1) filled with fluid communicates through a central opening 21 with the inside of a flexible bladder 22 isolating the contents of the reservoir from the sea environment and equilizing the pressure inside the reservoir with the external hydrostatic pressure. An internal dividing wall 2 divides the reservoir into two compartments, the central compartment 3 to which is connected a duct 12 for the expanded fluid and housing a pump 8 for discharge to the platform and for draining water and the annular peripheral compartment 4 housing the pumps 5, 6 for feeding the compressed fluid to the accumulators. The installation can be used as a self contained hydraulic unit or fluid storage reservoir when the pressurized fluid supply is provided from the surface.Type: GrantFiled: January 27, 1986Date of Patent: June 21, 1988Assignee: Societe Nationale Elf Aquitaine (Production)Inventor: Gilles Barnay