Weight Biased Patents (Class 137/527.8)
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Patent number: 8443834Abstract: A protection system for protecting a fire hydrant is disclosed having an interior, the protection system including a nozzle having a first end to be secured to the hydrant and a second end configured to engage a fire hose coupling, the nozzle defining a bore that is in fluid communication with the interior of the fire hydrant, wherein the nozzle defines a seat disposed in the bore; and a disc disposed within the bore and configured to move axially and rotationally from a normally closed position to an open position in response to an increase in pressure within the interior of the fire hydrant.Type: GrantFiled: March 26, 2011Date of Patent: May 21, 2013Assignee: Mueller International, LLCInventor: James Ola Williams
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Patent number: 8443833Abstract: A valve is provided. The valve includes a flapper member. A barrel is coupled to the flapper member, the barrel having an interior volume and at least one movable vane within the interior volume. A shaft member is rotationally coupled to the barrel, the barrel having at least one stationary vane disposed within the interior volume.Type: GrantFiled: April 7, 2011Date of Patent: May 21, 2013Assignee: Hamilton Sundtrand CorporationInventors: Jay Stradinger, Kevin Arthur Roberg, Rosanna Catricala Glynn
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Publication number: 20130118612Abstract: A clack valve assembly comprising: a valve seat comprising an opening; a bearing comprising a recess with a base, a mouth, and a pair of side walls between the base and the mouth; a lid comprising a lid plate and a shaft, the shaft being received in the recess of the bearing; and a shaft retaining member which closes the mouth of the recess in the bearing, thus retaining the shaft within the recess. The shaft and the lid plate are integrally formed elements of a single part. The shaft can rotate within the recess to enable the lid to rotate from a closed position in which the lid engages the valve seat and covers the opening, to an open position in which the lid lifts away from the valve seat enabling fluid to flow through the opening in the valve seat.Type: ApplicationFiled: November 2, 2012Publication date: May 16, 2013Applicant: AIRBUS OPERATIONS LIMITEDInventor: AIRBUS OPERATIONS LIMITED
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Patent number: 8316876Abstract: A drain ring adapted for use in a device for flushing a dead-end of an underground municipal water distribution system includes a pair of annular seals and a channel between the seals, an outlet passage extending from inside the ring to the channel, and a flapper adapted to close the outlet passage under the influence of at least one of pressure and flow. The drain ring is removably positioned between a shut-off valve and an outlet of the device.Type: GrantFiled: July 14, 2009Date of Patent: November 27, 2012Assignee: John C. Kupferle Foundry CompanyInventor: Daniel G. McKeague
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Patent number: 8317158Abstract: Flapper valve assemblies are provided. One flapper valve assembly includes a flowbody, a flapper valve element, and an elongated stiffening rib formed in the flowbody. The flowbody includes a generally flat plate portion, and an arcuate portion adjacent the generally flat plate portion. The flapper valve element is hingedly coupled to the flowbody proximate the generally flat plate portion. The elongated stiffening rib extends from the generally flat plate portion to the arcuate portion to distribute mechanical stress and to reduce deflection of the flowbody during pressure loading.Type: GrantFiled: December 10, 2009Date of Patent: November 27, 2012Assignee: Honeywell International Inc.Inventors: Steve Patterson, Joel LaBenz, Ara Briley, Rene Villalba, Scott Martin
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Patent number: 8302623Abstract: An cylindrical hollow anti-backflow insert that can rapidly retrofit a fire hydrant to prevent a forced liquid inflow into the fire hydrant after simple insertion of the insert into the outflow nozzles of a fire hydrant. A curved anti-backflow flap having a hinge at one end and an inflow fin at an opposite end is positioned within the insert. Outflow of water from the fire hydrant will cause the flap to rotate upwards, at which point the inflow fin protrudes into the interior of the insert sufficiently to catch any forced liquid inflow stream which will force the flap downward towards a curved flap seal. The curved flap seal reversibly engages the perimeter of the flap, thereby reversibly closing the rear end of the insert and preventing the forced inflow of liquid into the fire hydrant.Type: GrantFiled: January 25, 2011Date of Patent: November 6, 2012Inventor: H. Brunson Nichols
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Patent number: 8256454Abstract: An adjustable moment arm flapper including a flapper defining a cavity there within and a moveable mass system disposed within the cavity, a center of mass of the flapper changeable based upon position of the movable mass and a method for dynamically controlling a flapper.Type: GrantFiled: November 12, 2009Date of Patent: September 4, 2012Assignee: Baker Hughes IncorporatedInventors: Yang Xu, Keith J. Murphy
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Patent number: 8196600Abstract: Wear-resistant coating systems suitable for protecting surfaces subjected to contact wear at high temperatures, such as surfaces of an assembly comprising high-temperature components of gas turbine engines. The components have surfaces in wear contact with each other. One of the surfaces has a wear-resistant coating system thereon so as to be in wear contact with the surface of the other component. The wear-resistant coating system contains alternating layers of TiAlN and CrN.Type: GrantFiled: December 27, 2010Date of Patent: June 12, 2012Assignee: General Electric CompanyInventors: Robert William Bruce, Karen Marie Marvich, Danny Lee Fenwick
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Patent number: 8096318Abstract: A valve flap for a plumbing valve, includes a body having a first face, a second face, a top and a bottom. A pivotal mounting is provided in the vicinity of the top. A curved lower snake deflecting contact face is provided in the vicinity of the bottom, adapted to facilitate sliding contact with a plumbing snake. This valve flap enables a plumbing snake to be inserted into and withdrawn from the plumbing valve.Type: GrantFiled: April 29, 2008Date of Patent: January 17, 2012Inventor: Gabe Coscarella
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Patent number: 8028715Abstract: The present invention provides a check valve for use in a vacuum sewage pipe. The check valve includes a body having a sewage inlet and a sewage outlet to be coupled to the vacuum sewage pipe, a flap valve element disposed in the body and rotatably supported by a first shaft, and a closing mechanism. The closing mechanism can keep the flap valve element in a closed state so as to allow the flap valve element to function as a gate valve. The closing mechanism can also limit an opening degree of the flap valve element so as to allow the flap valve element to function as a check valve.Type: GrantFiled: October 19, 2006Date of Patent: October 4, 2011Assignee: Ebara CorporationInventors: Osamu Shimizu, Yuji Hiroto, Keisuke Ikeda, Fuyuki Ogaki
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Patent number: 7874307Abstract: A check valve is shaped and dimensioned to be installable inside a conventional pipe coupling, thereby reducing the amount of length required to install the check valve.Type: GrantFiled: August 19, 2008Date of Patent: January 25, 2011Inventor: Eduardo R. Deocampo
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Patent number: 7814983Abstract: A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second fluid being pressurized to a second pressure at approximately 5.5 times the first pressure. The system further comprises a dry pipe valve including a body defining a passage extending along a longitudinal axis between an inlet coupled to the supply pipe and an outlet coupled to the network of pipes. The inlet has an inlet diameter of approximately WD inches and a seat disposed in the body has a seating surface with a diameter AD approximately less than two times WD inches. The dry pipe valve further includes a clapper pivotable about an axis orthogonal to the longitudinal axis between a first position occluding the passage when the ratio of the second pressure to the first pressure is at least 5.5 and a second position permitting fluid flow through the passage when the ratio is less than 5.5.Type: GrantFiled: January 7, 2008Date of Patent: October 19, 2010Assignee: Grinnell LLCInventor: Yoram Ringer
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Patent number: 7770511Abstract: The invention relates to a device and method for preparing liquid from solid materials such as medicinal materials. It includes liquid and materials for preparing the liquid at the beginning and the end of the process. The device uses a steam generator, an intermediate switch valve and a material chamber, which are connected sequentially with pipes, and further includes an outlet pipe, which is at the bottom of the material chamber. The method involves the steps of: distillation and absorption; immersion; and repetition. The device and method for preparing liquid alternates the distillation and immersion steps, which reduces harmful substance in the prepared liquid that would otherwise occur by conventional methods. The method not only extracts soluble effective matter, but also reduces loss of volatile effective matter. Ultimately, the method makes the steps for preparing liquid simple and clear, and it can prepare liquid quantitatively, effectively and without pasty and shrinkable characteristics.Type: GrantFiled: December 18, 2003Date of Patent: August 10, 2010Assignee: Shenzhen Zofu Technology Co., Ltd.Inventor: Linlin Yao
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Patent number: 7730679Abstract: A water drain for insertion into a mating wall opening in an extruded, hollow door or window sash or frame comprises a round, rectangular or the like housing having at least one peripheral front flange defining a drain opening, a baffle extending downwardly from a housing top portion for partially closing an upper portion of the drain opening, and a flap having a lower planar rear surface and an upper planar front surface for opening and closing lower and upper portions of the drain opening. The planar lower rear surface portion of the flap is joined to the upper front surface portion by a pivot axis, the planar lower surface being disposed forwardly of the upper planar front surface whereby the flap tends to gravitate to an at-rest, closed, substantially vertical position.Type: GrantFiled: November 13, 2007Date of Patent: June 8, 2010Inventors: Edgar Grant Eckenswiller, Richard O'Donnell
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Patent number: 7686031Abstract: A fire hydrant system relating to protection of a water supply from contamination. The fire hydrant system includes a barrel adapted to communicate at least indirectly with a water supply; a nozzle extending from the barrel; a hydrant valve adapted to controllably regulate communication between the barrel and the water supply; a valve actuator adapted to allow actuation of the hydrant valve; a nozzle cap adapted to at least close off the nozzle opening; and a hydrant shoe in communication with the water supply, the hydrant shoe comprising a backflow prevention assembly, wherein water can flow from the water supply through the hydrant shoe into the barrel at an open position of the backflow prevention assembly disc, and wherein media cannot enter the water supply via the barrel when the backflow prevention assembly disc is in a closed position.Type: GrantFiled: March 24, 2009Date of Patent: March 30, 2010Assignee: Mueller International, Inc.Inventors: Mikhail German, Leo W. Fleury, Ken Clark
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Patent number: 7585164Abstract: A backflow preventing apparatus for a scroll compressor is disclosed, in which a check valve is hinge-coupled to a valve seat, or is coupled to a valve seat so as to be elastically opened and closed. The check valve is opened and closed by a pressure difference and its own weight or elasticity, thereby having a quick response speed. The check valve prevents discharged refrigerant from backflowing, thus enhancing efficiency of the compressor. Further, since the check valve when opened is prevented from colliding with a valve housing by a valve stopping surface or a retainer, discharge noise from the compressor is reduced.Type: GrantFiled: April 5, 2007Date of Patent: September 8, 2009Assignee: LG Electronics Inc.Inventors: Young-Se Joo, Na-Ra Han
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Patent number: 7575019Abstract: The present invention is related to a water faucet having a water temperature retaining feature. The water faucet includes a hot water control, a cold water control, a mixing chamber for receiving the hot water and the cold water, a first flow control cartridge operationally coupled with the hot water control for regulating the flow of hot water, a second flow control cartridge operationally coupled with the cold water control for regulating the flow cold water, an outlet for dispensing a mixture of hot and cold water received from the mixing chamber, and a master control for controlling the dispensing of water through the outlet, wherein the master control is capable of stopping the dispensing of water through the outlet while either of the hot water control and the cold water is in an open position.Type: GrantFiled: November 15, 2006Date of Patent: August 18, 2009Inventor: Tae Gon Oh
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Publication number: 20090116938Abstract: A check valve is installed in a line having a fluid path for preventing generation of a back flow in the fluid path. The check valve includes a cylindrical member in which a part of the fluid path is formed; a valve body installed in the cylindrical member and rotatable between a blocking position for blocking the fluid path and an opening position for opening the fluid path; a rotary shaft which is installed horizontally to divide the valve body into a large area and a small area and allows the valve body to rotate thereabout; and a locking member for locking the valve body in the blocking position. The small area has a larger mass than that of the large area.Type: ApplicationFiled: November 4, 2008Publication date: May 7, 2009Applicant: TOKYO ELECTRON LIMITEDInventor: Shinji WAKABAYASHI
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Patent number: 7520294Abstract: A fire hydrant system relating to protection of a water supply from contamination. The fire hydrant system includes a barrel adapted to communicate at least indirectly with a water supply; a nozzle extending from the barrel; a hydrant valve adapted to controllably regulate communication between the barrel and the water supply; a valve actuator adapted to allow actuation of the hydrant valve; a nozzle cap adapted to at least close off the nozzle opening; and a hydrant shoe in communication with the water supply, the hydrant shoe comprising a backflow prevention assembly, wherein water can flow from the water supply through the hydrant shoe into the barrel at an open position of the backflow prevention assembly disc, and wherein media cannot enter the water supply via the barrel when the backflow prevention assembly disc is in a closed position.Type: GrantFiled: June 12, 2007Date of Patent: April 21, 2009Assignee: Mueller International, Inc.Inventors: Mikhail German, Leo W. Fleury, Ken Clark
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Patent number: 7444828Abstract: An ice discharging structure of an ice making mechanism for discharging an ice block from the ice making mechanism reliably regardless of the weight of the ice block. An ice making mechanism of an ice making machine comprises an ice making section case in which an opening closed by a separator openably and closably is provided. The ice making section case comprises an ice chute inclined downward to the opening of the ice making section case, provided between an ice making section 16 and a sprinkler, for leading an ice block fallen from an ice making chamber to the opening. On an end face of the ice chute, a first rib is horizontally provided in a width direction of the end face, and a top thereof is in line contact with an inner face of the separator.Type: GrantFiled: November 30, 2005Date of Patent: November 4, 2008Assignee: Hoshizaki Denki Kabushiki KaishaInventors: Shizuma Kadowaki, Kunihiko Ishitomi, Masaaki Kawasumi, Hiroki Imaoka
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Publication number: 20080196775Abstract: A valve flap for a plumbing valve, includes a body having a first face, a second face, a top and a bottom. A pivotal mounting is provided in the vicinity of the top. A curved lower snake deflecting contact face is provided in the vicinity of the bottom, adapted to facilitate sliding contact with a plumbing snake. This valve flap enables a plumbing snake to be inserted into and withdrawn from the plumbing valve.Type: ApplicationFiled: April 29, 2008Publication date: August 21, 2008Inventor: Gabe Coscarella
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Patent number: 7322423Abstract: A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second fluid being pressurized to a second pressure at approximately 5.5 times the first pressure. The system further comprises a dry pipe valve including a body defining a passage extending along a longitudinal axis between an inlet coupled to the supply pipe and an outlet coupled to the network of pipes. The inlet has an inlet diameter of approximately WD inches and a seat disposed in the body has a seating surface with a diameter AD approximately less than two times WD inches. The dry pipe valve further includes a clapper pivotable about an axis orthogonal to the longitudinal axis between a first position occluding the passage when the ratio of the second pressure to the first pressure is at least 5.5 and a second position permitting fluid flow through the passage when the ratio is less than 5.5.Type: GrantFiled: December 22, 2005Date of Patent: January 29, 2008Assignee: Grinnell LLCInventor: Yoram Ringer
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Patent number: 7302967Abstract: A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on the frame, and a plurality of pivotable plate members supported by the support shafts. The plate members can move between the first position (reverse flow preventing position) in which they lie in a substantially single plane and the second position (normal operating position) in which they move. The support shafts and the plate members are arranged substantially concentrically or radially.Type: GrantFiled: January 31, 2006Date of Patent: December 4, 2007Assignee: Fujitsu LimitedInventors: Hideki Maeda, Hikaru Inoue, Akira Shimasaki
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Publication number: 20070272308Abstract: (a) a body; (b) a valve seat; (c) a flapper; (d) a hinge pin attached to the body proximate to the valve seat and disposed substantially perpendicular to the fluid flow path; and (e) at least one flapper dog attached to the flapper, the flapper dog defining an aperture, the hinge pin being disposed through the aperture such that the flapper dog is rotatable around the hinge pin, the aperture in the flapper dog being oblong in shape.Type: ApplicationFiled: May 24, 2006Publication date: November 29, 2007Inventors: Wayne Spears, Robert W. Spears
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Patent number: 7249611Abstract: A top entry check valve including a valve body with an access port. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve body. A clapper is connected to the hanger body so that the clapper is movable between a closed position wherein the clapper engages a valve seat to occlude the passage of fluid through the fluid flow passage and an open position wherein the clapper is moved away from the valve seat to permit passage of fluid through the fluid flow passage. A closure member is connected to the valve body to close the access port of the valve body. The closure member has an abutment surface engaging the hanger body so that the hanger body is compressed between the closure member and the valve body.Type: GrantFiled: November 9, 2006Date of Patent: July 31, 2007Assignee: Valve Innovations, L.L.C.Inventors: John P. Scaramucci, Danny Ray Lowe
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Patent number: 7152622Abstract: A top entry check valve including a valve body with an access port. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve body. A clapper is connected to the hanger body so that the clapper is movable between a closed position wherein the clapper engages a valve seat to occlude the passage of fluid through the fluid flow passage and an open position wherein the clapper is moved away from the valve seat to permit passage of fluid through the fluid flow passage. A closure member is connected to the valve body to close the access port of the valve body. The closure member has an abutment surface engaging the hanger body so that the hanger body is compressed between the closure member and the valve body.Type: GrantFiled: November 16, 2004Date of Patent: December 26, 2006Assignee: Valve Innovations, LLCInventors: John P. Scaramucci, Danny Ray Lowe
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Patent number: 7134448Abstract: A transducer for monitoring the position of movable bodies and in particular for monitoring the position of valve flaps and other elements in connection with systems for fire extinction, is composed of a pipe (4) which is closed at one end and thus forms a hollow body with a bottom (4). The pipe is made of a magnetically inert material and accommodates an inductive sensor (5) of an ordinary type. The sensor is movable inside the pipe, but engages the internal bottom of the pipe in its normal position of use. The transducer is kept in this position by a compression spring (17) which presses against the free end of the cylindrical sensor. With its other end, this compression spring (17) engages a plug (2) at the free end of the pipe. In its position of use, the transducer is arranged such that the bottom of the pipe, and thereby the active face of the sensor, is positioned in the immediate vicinity of the body, e.g. a valve flap, whose position is to be monitored.Type: GrantFiled: June 9, 2005Date of Patent: November 14, 2006Assignee: VID A.p.S.Inventor: Carsten Palle
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Patent number: 7108010Abstract: A position detector for a check valve, including a bracket with a support arm, adjustable securing members adapted to rigidly secure the bracket to a check valve arm, a tilt switch, a connector, a circuit status indicator, a wire connector for both the tilt switch and the circuit status indicator, and a first plug. The connector adjustably connects the tilt switch to the bracket support arm in a selected one of a plurality of secure positions pivoted around an axis fixed to the bracket support arm, the axis being oriented generally horizontally when the securing members secure the bracket to the check valve arm. The first plug is selectively securable to the wire connector whereby a first circuit with the tilt switch and the circuit status indicator is formed when the tilt switch is in a selected position.Type: GrantFiled: September 26, 2003Date of Patent: September 19, 2006Assignee: Smith & Loveless, Inc.Inventor: Fred Trentadue
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Patent number: 7104333Abstract: A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated.Type: GrantFiled: November 19, 2003Date of Patent: September 12, 2006Assignee: Grinnell CorporationInventor: Yoram Ringer
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Patent number: 7025086Abstract: A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on the frame, and a plurality of pivotable plate members supported by the support shafts. The plate members can move between the first position (reverse flow preventing position) in which they lie in a substantially single plane and the second position (normal operating position) in which they move. The support shafts and the plate members are arranged substantially concentrically or radially.Type: GrantFiled: August 10, 2004Date of Patent: April 11, 2006Assignee: Fujitsu LimitedInventors: Hideki Maeda, Hikaru Inoue, Akira Shimasaki
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Patent number: 7004194Abstract: A check valve has a valve body and flapper. The flapper has a gasket which is sandwiched between a flapper base and a flapper cover. The flapper base has a flapper base stem which extends through an aperture in the gasket is retained within an aperture in the flapper cover. A central recess is defined in either the forward surface of the flapper base or the forward surface of the flapper cover to allow liquid which leaks between the flapper base and the gasket to migrate to the flapper base stem, and subsequently along the flapper base stem to the external side of the flapper cover. In this way, the flapper is capable of relieving pressure build-up between the gasket and the surface of the flapper base.Type: GrantFiled: April 14, 2004Date of Patent: February 28, 2006Assignee: Spears Manufacturing Co.Inventor: Robert W. Spears, II
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Patent number: 6971398Abstract: A baffle controls the normal process flow of liquid in basins of liquid treatment equipment, but releases uncontrolled flow of the liquid caused by events such as seismic events. Methods provide an unbent blank for making such baffle with a hinge member to facilitate the release of the uncontrolled flow. Further methods provide for mounting of the baffle for movement, urging the baffle for the control of the normal process flow, and allowing the uncontrolled flow to overcome the urging and release the uncontrolled flow. Baffle embodiments may be made from exemplary materials such as stainless steel, glass fiber reinforced polyester, pultruded FRP, and redwood.Type: GrantFiled: July 31, 2003Date of Patent: December 6, 2005Assignee: Meurer Research, Inc.Inventors: Joseph Karl Brauch, Charles Lonnie Meurer
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Patent number: 6848468Abstract: A drain cover assembly includes a closure device operable so as to close and open a drain hole in a cover plate of a drain cover unit. The closure device includes a pivot arm having a mounting portion connected pivotally to the cover plate, a flow control portion extending from and disposed on a first side of the mounting portion and registered with the drain hole, and a weighted portion extending from and disposed on a second side of the mounting portion and having a weight sufficient to overcome the weight of the flow control portion so as to cause the pivot arm to pivot from an open position to a normal closed position. The pivot arm pivots to the open position when the flow control portion is subjected to an applied load through the drain hole that is sufficient to overcome the weight of the weighted portion.Type: GrantFiled: November 10, 2003Date of Patent: February 1, 2005Assignee: Saint Island InternationalInventor: Tung-Min Hsien
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Patent number: 6830065Abstract: The duct connector of the present invention preferably has a rectangular inlet and a round outlet. An intermediate passage is located between the rectangular inlet and the round outlet. Preferably, the intermediate passage provides a smooth transition that is substantially free from steps, sharp corners, breaks or facets, and acts to smoothly funnel airflow from the rectangular inlet to the round outlet. The intermediate passage preferably includes transitional surfaces that connect adjacent walls of the duct. Each transitional surface preferably provides a single smooth continuously curved surface connecting a side wall and an adjacent end wall along the intermediate passage. The smooth transition of the intermediate passage and the use of transitional surfaces as just described reduces turbulence and noise within the duct connector and results in greater fan or blower efficiency.Type: GrantFiled: January 11, 2002Date of Patent: December 14, 2004Assignee: Broan-NuTone LLCInventors: Richard R. Sinur, Tom Heidel
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Patent number: 6823905Abstract: An inflation valve assembly, for a dunnage or cargo air bag, comprises an annular flange member which is adapted to be heat-sealed to an interior surface portion of one of the plies of the inflatable bladder of the air bag, and an externally threaded nipple portion for fluidic connection to a source of pressurized fluid for inflating the bladder of the dunnage or cargo air bag. A flapper valve member, having a substantially circular configuration, has an end portion which is adapted to be fixedly secured upon an arcuate portion of the upper surface portion of the annular flange member by a fixation bar which extends along a chordal extent of the annular flange member. Opposite end portions of the fixation bar project radially inwardly toward each other so as to effectively define a pair of oppositely disposed detents for maintaining the flapper valve member in its OPENED state.Type: GrantFiled: August 18, 2003Date of Patent: November 30, 2004Assignee: Illinois Tool Works Inc.Inventors: Rodney S. Smith, Thomas C. Keenan
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Patent number: 6810963Abstract: A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated.Type: GrantFiled: March 20, 2003Date of Patent: November 2, 2004Assignee: Grinnell CorporationInventor: Yoram Ringer
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Patent number: 6789568Abstract: A fluid flow control mechanism includes a crossover fuel assembly which controls fuel flow between tanks such that an engine fuel intake pipe remains submerged. It is for a work vehicle with a fuel system which has two tanks, three flexible couplings, a tube assembly and a valve assembly. The crossover fuel assembly includes a suction tube assembly, a check valve assembly, a connecting polymeric or elastomeric coupling and multiple clamping mechanisms. The engine fuel intake pipe fluidly connects the crossover fuel assembly to the engine.Type: GrantFiled: June 17, 2003Date of Patent: September 14, 2004Assignee: Case, LLCInventors: Michael Bunnell, Daniel Karlak
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Patent number: 6782916Abstract: A fuel system for a work vehicle such as a tractor includes a pair of fuel tanks located on either side of the vehicle that are connected by a cross feed fuel line. The fuel line permits fuel to flow from both tanks to a common fuel suction line, which, in turn, feeds the vehicle's engine with fuel. The fuel line includes a check valve that prevents the free flow of fluid through the cross feed line when the vehicle is driven across a slope. The check valve is disposed to prevent liquid fuel from flowing away from a fuel suction line and starving the suction line for fuel.Type: GrantFiled: December 20, 2001Date of Patent: August 31, 2004Assignee: Case CorporationInventors: Darrel J. Svendsen, Kenneth Daniels
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Patent number: 6691736Abstract: A waterproof valve of an exhausting tube comprises a tube body, a check portion, a check piece and a ball. An upper end of the check portion has two assembling holes. A check piece having two tip points at two side of the distal end thereof and a distal end of the check piece has a round hole. In assembly, the check portion and ball are mounted in the tube body; the assembling holes of the check portion are coupled to the tip points of the check portion. The round hole at the distal end of the check piece is assembled with the ball for controlling the action of the check piece.Type: GrantFiled: April 14, 2003Date of Patent: February 17, 2004Inventor: Ching-Hsiang Liu
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Patent number: 6685557Abstract: A building ventilation air inlet assembly for providing an adjustable venting assembly to permit automatic inlet of air includes a housing, an air opening extending through the housing, a valve plate pivotally coupled to the housing for selectively covering the air opening, an adjustable valve counterweight coupled to the valve plate for biasing the valve plate into a closed position, and a valve plate stop lanyard coupled between the valve plate and the housing for restricting opening of the valve plate. The valve plate stop lanyard includes a clip member for permitting adjustment of the effective length of the valve plate stop lanyard.Type: GrantFiled: December 13, 2002Date of Patent: February 3, 2004Inventor: Darius Hoffe
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Publication number: 20030201013Abstract: A waterproof valve of an exhausting tube comprises a tube body, a check portion, a check piece and a ball. An upper end of the check portion has two assembling holes. A check piece having two tip points at two side of the distal end thereof and a distal end of the check piece has a round hole. In assembly, the check portion and ball are mounted in the tube body; the assembling holes of the check portion are coupled to the tip points of the check portion. The round hole at the distal end of the check piece is assembled with the ball for controlling the action of the check piece.Type: ApplicationFiled: April 14, 2003Publication date: October 30, 2003Inventor: Ching Hsiang Liu
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Publication number: 20030131891Abstract: The duct connector of the present invention preferably has a rectangular inlet and a round outlet. An intermediate passage is located between the rectangular inlet and the round outlet. Preferably, the intermediate passage provides a smooth transition that is substantially free from steps, sharp corners, breaks or facets, and acts to smoothly funnel airflow from the rectangular inlet to the round outlet. The intermediate passage preferably includes transitional surfaces that connect adjacent walls of the duct. Each transitional surface preferably provides a single smooth continuously curved surface connecting a side wall and an adjacent end wall along the intermediate passage. The smooth transition of the intermediate passage and the use of transitional surfaces as just described reduces turbulence and noise within the duct connector and results in greater fan or blower efficiency.Type: ApplicationFiled: January 11, 2002Publication date: July 17, 2003Inventors: Richard R. Sinur, Tom Heidel
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Patent number: 6557645Abstract: A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler system is actuated.Type: GrantFiled: June 13, 2000Date of Patent: May 6, 2003Assignee: Grinnell CorporationInventor: Yoram Ringer
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Patent number: 6543474Abstract: A flapper-type anti-siphoning check valve for a domestic water system has an auxiliary valve built into the flapper. The auxiliary valve permits slow reverse flow of water through the check valve when the flapper is closed to prevent build-up of pressure in the user's water system, but closes as a result of more rapid reverse flow of water in the event of a sudden drop in supply pressure.Type: GrantFiled: May 1, 2001Date of Patent: April 8, 2003Inventor: Roy A. Fetterman, Jr.
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Patent number: 6508246Abstract: The present invention is a mechanical draft controller. The draft controller is comprised of a draft controller portion, a means for pivoting the controller portion, and a means for counterbalancing the controller portion. The draft controller portion has a surface that is movable in a generally arcuate path with respect to a central axis, a second surface extending between the first surface and the central axis, and two side surfaces extending between the first surface and the central axis. The side surfaces are spaced apart and have the second surface oriented between the side surfaces.Type: GrantFiled: November 17, 2000Date of Patent: January 21, 2003Inventor: Lon W. Fiedler
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Patent number: 6499503Abstract: A backflow valve has a closure gate that is pivotally mounted for movement between an open position in which the closure gate is positioned on a plane substantially parallel to a longitudinal axis of a flow passage and a closed position in which the closure gate is positioned transverse to the longitudinal axis. The closure gate has a midsection positioned pivot axis and is unbalanced with greater weight being toward the first end. A rotational stop limits pivotal movement when the closure gate is in the open position. A float is secured to the first end of the closure gate. The greater weight at the first end biases the closure gate by force of gravity against the rotational stop and into the open position. The float causes the closure gate to pivotally move to the closed position in response to liquid rising in the flow passage.Type: GrantFiled: December 21, 2000Date of Patent: December 31, 2002Inventor: Gabe Coscarella
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Patent number: 6475078Abstract: An air inlet device for use in automatically providing ventilation to the interior of buildings. The device has one of more openings each of which has a moveable louver pivoted at the lower side of the opening with the louver extending upwardly so that the inlet air is directed upwardly toward the ceiling of the building. Each louver extends beyond its lower pivot point and contains means for attaching weights of different amounts to the louver depending upon the static pressure within the building thereby allowing adjustment of the air flow in accordance with the static pressure.Type: GrantFiled: October 9, 2001Date of Patent: November 5, 2002Inventor: Norb Borcherding
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Publication number: 20020011342Abstract: A pneumatic actuator having AND gate logic characteristics is disclosed. The actuator has three chambers each divided into two chamber portions by respective flexible diaphragms. One of the diaphragms acts as a valve closing member and controls the flow of a pressurized fluid through the actuator to actuate an associated device when fluid flow is permitted. The other two diaphragms are in mechanical contact with one another and in hydraulic communication with the one diaphragm and thereby control its motion, keeping it normally closed and preventing fluid flow but allowing it to move into an open position permitting fluid flow and actuation of the associated device only when each of the two diaphragms are subject to separate, concurrent drops in pressure which allows both of them to deflect away from the one diaphragm.Type: ApplicationFiled: July 2, 2001Publication date: January 31, 2002Inventor: Willilam J. Reilly
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Patent number: 6328052Abstract: A valve for controlling fluid flow while permitting flow in only one direction includes a housing having a spherical central opening and connections to permit attachment to fluid flow lines at opposite ends of the housing. The spherical opening is configured to permit fluid flow through the housing. A spherical member is adapted to fit within the spherical central opening of the housing. The spherical member has an opening bored through its center and may be aligned with the housing connections to allow fluid communication between them and positioned perpendicular to the housing connections to prevent fluid communication between them. A rotation member is provided to operate in conjunction with the spherical member to rotate the spherical member within the housing. A closing member is mounted within the spherical member, and is sized to close off the opening bored through the center of the spherical member for one direction of fluid flow.Type: GrantFiled: January 8, 2001Date of Patent: December 11, 2001Inventor: Stephen M. Loyning
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Patent number: 6318403Abstract: The present invention disclosed and claimed herein comprises, in one aspect thereof, a combination manifold and check valve assembly for a water heater unit which includes a temperature and pressure relief valve and a drain pan. The assembly comprises a manifold body having a first inlet opening, a second inlet opening, and an outlet opening which are in fluid communication. The first inlet opening is adapted for connection to the outlet of a temperature and pressure relief valve. The second inlet opening is adapted for connection to the outlet of a drain pan. The outlet opening is adapted for connection to a drain line. A valve member is disposed within the manifold body between the first inlet opening and the second inlet opening.Type: GrantFiled: July 11, 2000Date of Patent: November 20, 2001Inventor: Sammy G. Fritz