Air Vent In Liquid Flow Line Patents (Class 137/216)
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Patent number: 6971400Abstract: A dual inlet air gap fixture having an air gap body with first and second interior inlet conduits for receiving wastewater flow respectively from first and second identical or diverse sources of wastewater. The body has an interior outlet conduit opposite the inlet conduits for discharging wastewater emptying from either or both of the inlet conduits. A removable water reversal cap and partition module is received within the upper portion of the air gap body and provides venting communication between atmosphere and the outlet conduit, and redirects the wastewater from the inlet conduits into the outlet conduit. The inlet conduits are arrayed side-by-side on one side of the body interior space and the outlet conduit occupies the remaining interior space on the other side of space opposite from the two inlet conduits.Type: GrantFiled: April 29, 2004Date of Patent: December 6, 2005Inventors: Dennis E. Bowman, Steven B. Norvell
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Patent number: 6776183Abstract: An aircraft drain device (14) for interposition between a potable water line (e.g., the drain line from an ice drawer) and a gray water line leading to a drainmast or other external drain. The drain device (14) includes a housing (30), an inlet (36) adapted for connection to the potable water line, an outlet (38) adapted for connection to the gray water line, and a piston (40). The preferably floatable piston (40) is movable between a normal operation position, whereat potable water can flow to the drainmast, and a back-up operation position, whereat the potable water is protected from contact with the gray water. The drain device (14) can be constructed to prevent spillage (or leakage) during back-up operation.Type: GrantFiled: April 23, 2003Date of Patent: August 17, 2004Assignee: Goodrich CorporationInventors: Steven Charles Brooker, Robert William Hyde, Martin I. Lei
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Patent number: 6748966Abstract: A structure is mounted on a sink top or counter top between a dishwasher discharge line and a vented plumbing line to provide an anti-siphon feature for a household dishwashing machine. The structure also includes in combination a pump-type soap dispenser. The pump-type soap dispenser includes a push-actuated pump to pump liquid soap from a reservoir bottle, and the pump slides into and out of a mounting collar for ease of removal to facilitate refilling the reservoir bottle.Type: GrantFiled: August 30, 2002Date of Patent: June 15, 2004Inventor: Steven G. Dvorak
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Publication number: 20040094202Abstract: A modular air gap device adapted for selective insertion into an associated faucet body and comprises a base, an inlet nipple defining an inlet passage and an outlet nipple defining an outlet passage. The inlet and outlet nipples project outwardly from the base in a first direction. An gap structure is connected to the base and projects outwardly therefrom in a second direction opposite the inlet and outlet nipples. The base and air gap structure are adapted for receipt within an air gap chamber of a faucet body. The air gap structure defines a flow path having a first end in direct fluid communication with the inlet passage of the inlet nipple and a second end spaced from the outlet passage of the outlet nipple so that an air gap is defined between the second end of the flow path and the outlet passage. A faucet including the air gap device defines a vent for venting the air gap chamber.Type: ApplicationFiled: August 8, 2003Publication date: May 20, 2004Inventors: Raymond P. Kawolics, Jeffery J. Labinski, Michael A. Kolar, Michael H. Meyer
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Publication number: 20030188779Abstract: The present invention provides an air gap mounting sink for a backflow prevention device. The air gap sink comprises a wall mounting plate, a wall mounting plate having an upper and lower end; a pair of mounting brackets attached to the upper end of the wall mounting plate; and a sink basin mounted to the lower end of the wall mounting plate having a drain aperture. A backflow prevention valve is mounted to the mounting brackets such that the discharge output pipe of the device is position to vent any discharged water into the sink basin.Type: ApplicationFiled: April 8, 2003Publication date: October 9, 2003Applicant: DeGarmo Plumbing, Inc.Inventor: Craig DeGarmo
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Patent number: 6510863Abstract: A dual inlet air gap having an air gap body comprising a pair of inlet ports having substantially the same size, rate of flow, and pressure drop to accept waste water flow from a pair of waste water sources for emptying into a single outlet port located between the pair of waste water sources.Type: GrantFiled: June 1, 2001Date of Patent: January 28, 2003Inventor: Paul L. Traylor
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Patent number: 6499501Abstract: In a system for handling closely proximate flows of relatively clean and unclean water, the combination comprising a first conduit for passing relatively clean water to a first discharge, a second conduit extending protectively about the first conduit, a third conduit extending proximate and lengthwise of the second conduit for passing said relatively unclean water, outside the second conduit, and an outer housing extending about said first, second and third conduits.Type: GrantFiled: October 15, 2001Date of Patent: December 31, 2002Inventor: Herbert W. Hoeptner, III
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Patent number: 6453931Abstract: A modified or retrofitted air gap body to vent the waste water discharge from a source such as a household dishwasher in such a manner that it also vents the waste water discharge from a reverse osmosis system.Type: GrantFiled: April 26, 2001Date of Patent: September 24, 2002Inventor: Paul L. Traylor
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Patent number: 6435203Abstract: Disclosed is an apparatus and method for regenerating an etchant solution comprising metal compounds. When a sample of the etchant solution is determined to be of lower etching ability than a predetermined criteria as a result of the monitoring and analyzing three colors(red, green, and blue) of the etchant with color sensors in association with a microprocessor, the etchant solution is reoxidized by the addition of a suitable additive solution. The apparatus and method can regenerate spent etchant solutions containing heavy metals in a semi-permanent manner within the module device without wasting a portion of them, so that, in addition to producing no pollution of the environment, it is economically very favorable with an increase in overall etching efficiency.Type: GrantFiled: November 16, 2000Date of Patent: August 20, 2002Assignee: HWA Baek Engineering Co., Ltd.Inventor: Kang Lee
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Patent number: 6427716Abstract: A hydrant, comprising in combination an upper portion including a handle, a lower portion to be installed at least in part underground, the lower portion including a reservoir and a piston adapted to be displaced in the reservoir in response to handle manipulation, to displace water from a portion of the reservoir, a first conduit communicating with the interior of the reservoir to receive displaced water, the first conduit having an outlet located above ground to freely discharge water received in the conduit from said chamber, when water is displaced from the reservoir.Type: GrantFiled: June 18, 2001Date of Patent: August 6, 2002Inventor: Herbert W. Hoeptner, III
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Patent number: 6279598Abstract: Disclosed is an improved mixing eductor (10) of the type wherein the primary liquid (17), e.g., water, is in a main stream (201) flowing in a downstream direction. A venturi tube (51) is in the eductor (10) and has an annular sharp edge (131) in the main stream (201), thereby dividing such stream (201) into a primary stream (179) and a secondary stream (181) around the primary stream (179). The eductor (10) has an air gap (103) and a flow guide (47) downstream thereof. In a specific embodiment, the flow guide (47) is annular around the venturi tube (51) and the tube (51) and the guide (47) are in spaced telescoped relationship. Several embodiments of the eductor (10) and a new method for mixing liquids are disclosed.Type: GrantFiled: May 20, 1999Date of Patent: August 28, 2001Assignee: S. C. Johnson Commercial Markets, Inc.Inventors: John A. Boticki, James L. Bournoville, James H. Lohr, Charles E. Seaman, Jr.
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Patent number: 6269833Abstract: A transfer system for transferring liquid from a liquid source to a reservoir which includes a fluid conduit having a coupling attached to an inlet end and an anti-siphon apparatus, having an upper and lower end, attached to an outlet end. The coupling may be a quick-connect coupling. The anti-siphon apparatus is mounted on the inlet end of the fluid conduit such that the lower end is located below the minimum water level of the reservoir and the upper end is located above the maximum water level of the reservoir. In addition, the upper end of the anti-siphon apparatus is located above the liquid outlet of the fluid conduit. The anti-siphon apparatus includes a baffle suitable for maintaining an air gap between water in the reservoir and the liquid outlet. Optionally, the transfer system may have an apparatus for removably mounting the system to an object such as a seal gate.Type: GrantFiled: December 17, 1999Date of Patent: August 7, 2001Assignee: STP Nuclear Operating CompanyInventors: Herman W. Hein, Rene R. Gonzalez
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Patent number: 6189558Abstract: A vacuum breaker having inlet port arrangements for accepting either a single input flow or multiple input flows, and adapted to vent multiple input flow substantially independently of one another, and further adapted for mounting within the open upper ends of waste standpipes of different diameters.Type: GrantFiled: November 4, 1999Date of Patent: February 20, 2001Inventor: Paul L. Traylor
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Patent number: 6098651Abstract: Disclosed is a non-educting device (10) for preventing back flow of contaminated water into a potable water system. The device (10) includes first and second nozzles (33, 35) in series flow relationship to one another, an air gap (49) between the first and second nozzles (33, 35) and a water inlet (27). In the improvement, the inlet (27) is the sole liquid inlet of the device (10) and the first nozzle (33) is between the air gap (49) and the inlet (27). Such nozzle (33) includes a tapered portion having an axial length (AL) and a circular discharge opening (59). The ratio of the axial length (AL) to the diameter of the opening (59) is in the range of 0.7 to 1.1. Other features involve a unique containment bowl (21) and a secondary air gap (19) in liquid flow relationship to the containment bowl (21).Type: GrantFiled: May 6, 1997Date of Patent: August 8, 2000Assignee: S. C. Johnson Commercial Markets, Inc.Inventors: John A. Boticki, James H. Lohr, Charles E. Seaman, Jr.
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Patent number: 5934309Abstract: A collection apparatus for the collection and disposal of effluent from multiple sinks is provided that effectively maintains air gap and sanitation requirements within a minimal vertical distance. The preferred embodiment of present invention has multiple sinks with downwardly disposed drains and a trough mounted to collect the effluent flow from the drains. The trough has a discharge end, an overflow end, and a generally rounded bottom extending beneath the sinks and upwardly open to effluent discharging from the drains. The trough is mounted to induce effluent flow to the discharge end of the trough. The effluent flows from the sink drain through flow diverters located on the drains toward the discharge end of the trough through an air gap and into the trough. The air gap is provided between the lower end of the flow diverter and the bottom of the trough. The effluent is discharged from the trough through the discharge end into a grease separator.Type: GrantFiled: August 3, 1998Date of Patent: August 10, 1999Assignee: Clearline Systems, Inc.Inventor: William C. Batten
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Patent number: 5915406Abstract: An air gap device for a water softener system, the device having depending inner and outer skirt portions adapted to engage the inner and outer surfaces of an upstanding relatively small standard size waste standpipe, the outer skirt portion also being adapted to engage the inner surface of an upstanding relatively large standard size waste standpipe.Type: GrantFiled: February 13, 1998Date of Patent: June 29, 1999Inventor: Paul L. Traylor
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Patent number: 5881753Abstract: A fluid level controller which replaces fluid lost from a container thus maintaining the fluid level in the container. It is comprised of the following major pieces: an airtight reservoir (10) with cap (14), fill stem (12), feed lube (16), and tube attachment fittings (18a and 18b); several lengths of fluid conduit, (22a,b) and a u-bend (26) which form a siphon such that one end reaches into the bottom of reservoir (10) and the other reaches into the container below the desired fluid level; a length of conduit, (22c) which forms an air return line allowing air into reservoir (10); a stand (8) atop which sits the reservoir; a tubing clip (24); and a shut-off valve (20). The u-bend (26) allows the controller to preserve the initial prime of the system so that it only needs to be primed once. The shut-off valve (20) allows easy refilling of the controller once the fluid reservoir empties. These two features make the controller extremely easy to use.Type: GrantFiled: May 13, 1996Date of Patent: March 16, 1999Inventor: Alan P. Bowling
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Patent number: 5875809Abstract: An in-line accessory faucet having a separable plastic air gap module for use with an activated carbon purification unit bypassing thereby dishwasher waste water conduits. An improved air gap module prevents contaminated effluent dishwasher water from backing up into the dishwasher while providing a source of purified water to pass therethrough to an accessory faucet. A molded plastic outer body defines a contaminated water inlet conduit adjoining a contaminated water outlet conduit in which a removable splash plate is positioned on top of the outer body having a slotted air gap cover defining an air gap chamber coupling said waste water inlet to said waste water outlet placed overall, wherein the improvement comprises a third conduit disposed within the outer body for allowing passage of purified water without contamination therethrough from a water purification system. Said third conduit is molded as an integral portion of the outer body adjacent to a wall separating the inlet and outlet conduits.Type: GrantFiled: May 2, 1997Date of Patent: March 2, 1999Inventor: Robert David Barrom
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Patent number: 5865209Abstract: An air gap adapter for use with a water faucet. The air gap adapter has an adapter body with a base portion and an integral riser portion which extends generally vertically upwardly from a rear region of the base portion. The base portion has a hole for a water inlet shank of the water faucet, and the riser portion has brine inlet and outlet bores. The brine outlet bore is vertically oriented in the riser portion, and the brine inlet and outlet bores are open at their upper region. Two barbed connectors are located at a lower region of the adapter body and provide a brine inlet and outlet to the adapter. A venting aperture is formed near an upper region of said riser portion and passes into the brine outlet bore. A cap is positioned on the riser portion above the bores.Type: GrantFiled: June 18, 1996Date of Patent: February 2, 1999Assignee: QMP, Inc.Inventor: Jose Freddy Vidal
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Patent number: 5862829Abstract: A three-piece air gap eductor includes a molded body having air gap, discharge and venturi sections, a nozzle and a spray shield extending about the venturi section entry to constrain turbulence and reduce backsplash and spray exiting the air gap chamber. A water stream engaging the outer-driven venturi is smoothly divided into respective venturi and bypass streams, with the frustoconical shield capturing turbulent water outside the venturi in a water sheet moving toward a discharge. An improved shield is frustoconically shaped, has an internal reflection shoulder and external moister collecting bars to enhance mist and spray reduction in the air gap section. A V-shaped recess in the shield facilitates its emplacement about the venturi section. The molded body is stiffened to avoid functional misalignment of the water stream between the nozzle and the venturi.Type: GrantFiled: February 20, 1997Date of Patent: January 26, 1999Assignee: Hydor Systems CompanyInventor: William F. Sand
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Patent number: 5860444Abstract: A backflow prevention device for connection between an equipment liquid drain line and a sewer connection, the device being operable to prevent backflow of sewer waste into the equipment, comprising: an inlet opening at its upper portion, the inlet opening being connected to the drain pipe of the equipment; b) an outlet opening at its lower portion, the outlet opening being connected to the sewer; c) an arcuate liquid flow conduit, including a discharge opening, in liquid flow communication with the inlet opening for receiving inlet waste flow therefrom and redirecting and discharging it through the discharge opening in a downward vertical direction; d) a tubular liquid flow conduit in liquid flow communication with the outlet opening, the tubular flow conduit having an axial opening extending vertically therethrough and including an upper rim surrounding the axial opening; and e) a vertical connector on the tubular liquid flow conduit for supporting the arcuate liquid flow conduit in vertical spaced relationType: GrantFiled: September 17, 1997Date of Patent: January 19, 1999Inventors: Armen Guendjoian, Beth Guendjoian
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Patent number: 5839474Abstract: An eductor apparatus 20 includes a fluid inlet port 30 which directs fluid through an air gap 32 to an eductor 42. A rib 38 deflects any fluid which bounces off of the eductor 42 so that the fluid is retarded from exiting through an air gap port 34. The eductor 42 is of a one-piece construction having a specially designed inlet port 44 and exterior surface 116 thereabout in order to ensure attached flow and thereby reduce the amount of fluid which bounces off the exterior surface 116 and which is directed back upstream toward the air gap port 34.Type: GrantFiled: January 19, 1996Date of Patent: November 24, 1998Assignee: SC Johnson Commercial Markets, Inc.Inventor: Michael J. Greaney
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Patent number: 5823430Abstract: An automatic fertilizer system apparatus having a liquid fertilizer dispenser for introducing the continuous addition of a selected amount of fertilizer, insecticide, herbicide type chemicals to sprinklers that use an outside waterline. The dispenser having an adjustable metering cap with different diameter through-holes for allowing the contents of the dispenser to be injected into the flowing stream of water which leads to the sprinklers in a selected precise manner. The system splits incoming water into the dispenser, and underneath the dispenser where an orifice having a inwardly facing bevelled through-hole along with the metering cap forms a point of lowest pressure region where the chemicals are injected into an output fluid flow to sprinkler heads in amounts selected and dependent upon by the different sized metering caps.Type: GrantFiled: January 10, 1997Date of Patent: October 20, 1998Inventors: George Donald Clark, Jr., Robert W. Knuutila, II
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Patent number: 5813702Abstract: A water softener drain adapter system includes a tube having a first end and a lumen, a plurality of air slots project into the tube, an arcuate cap encloses an end of the tube opposite of the first end, and a tapered barb connector tube projects through the cap into the lumen. The tapered barb connector tube is for coupling to the drain hose of the water softener, and the first end of the tube engages the drain pipe within the sewage system. The plurality of air slots prevent sewage from being siphoned back into the water softener thereby preventing the water softener from being contaminated.Type: GrantFiled: December 9, 1996Date of Patent: September 29, 1998Inventor: Harry William McGuire
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Patent number: 5797419Abstract: An automatic sewer line trap priming assembly including a gap type, anti-siphoning conduit component. A shielded and directed jet at timed intervals directs priming water increments into a receiving funnel which communicates with the trap.Type: GrantFiled: January 5, 1996Date of Patent: August 25, 1998Assignee: C.H. Perrott, Inc.Inventors: Charles H. Perrott, Frank W. Dowdican
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Patent number: 5797420Abstract: This proportioner (10) is used in conjunction with a water supply connector (12) to provide a fluid mixing device for water and liquid detergent. The proportioner (10) includes a valve body (20) providing an inlet nozzle (14) and an air gap chamber (15) and an outlet (18) housing a venturi system (16). The venturi system (16) includes a venturi nozzle (40) aligned with the inlet nozzle (14) and having deflecting flats (42), a venturi tube (46) and a venturi throat (52) communicating with a detergent induction fitting (50).Type: GrantFiled: May 20, 1996Date of Patent: August 25, 1998Assignee: Dema Engineering Co.Inventors: Michael L. Nowicki, Paul E. Naslund
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Patent number: 5782112Abstract: A siphon break for a washing machine comprises a siphon body and a reservoir. The siphon body includes first and second openings arranged to receive fill water, a third opening arranged to direct fill water from the first opening to a tub of the washing machine, a fourth opening arranged to siphon overflow water from the siphon body, and a siphon body mounting device arranged to mount the siphon body to the washing machine. The reservoir includes a first opening arranged to receive a chemical, a second opening arranged to spill a mixture of water and the chemical to the siphon body, and a reservoir mounting device arranged to mount the reservoir to the washing machine so that the reservoir is mounted separately from the siphon body and so that the reservoir receives water from the second opening of the siphon body.Type: GrantFiled: November 7, 1996Date of Patent: July 21, 1998Inventors: Wm Wallace White, Christopher G. Hoppe
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Patent number: 5713385Abstract: A method and apparatus for modifying or retrofitting an air gap arrangement for venting the discharge from an existing waste water source such as a household dishwasher, so that the arrangement will also vent the waste water discharge from a reverse osmosis system.Type: GrantFiled: November 18, 1996Date of Patent: February 3, 1998Inventor: Paul L. Traylor
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Patent number: 5681459Abstract: Reject waste water adapter coupling fitting, system and installation method for use with a household undercounter reverse osmosis (R/O) water filtration installation associated with an in-counter sink having a garbage disposer with its outlet connected by standard slip fit plumbing fittings to a sink drain trap plumbed to the household sewer system. The R/O reject waste water undercounter drain line is coupled into the sink drain trap in parallel drainage relation with the disposer outlet plumbing fittings by a baffle Tee plumbing fitting having first and second inlets perpendicular to one another with their input drainage liquid flow separated by an internal baffle. The garbage disposer outlet is coupled by a standard slip fit single inlet/outlet conduit plumbing fitting to the baffle Tee first inlet. The baffle tee has a single outlet slip coupled to the inlet of the trap.Type: GrantFiled: August 14, 1995Date of Patent: October 28, 1997Inventor: Dennis E. Bowman
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Patent number: 5678592Abstract: Disclosed is an improved device (10) for preventing back flow of possibly-contaminated water into a potable water system. The device (10) includes first, second and third nozzles (33, 35, 37) in series flow relationship, and an air gap (49) between the first and second nozzles (33, 35). In the improvement, the air gap (49) is a primary air gap and the device (10) includes a secondary air gap (19) fixed with respect to the second nozzle (35). In a more specific aspect of the new device (10), the second and third nozzles (35, 37) are in a tubular housing (41) and the device (10) includes a containment bowl (21) around the housing (41). The secondary air gap (19) includes an aperture (53) in the housing wall (55) and such aperture (53) opens to the containment bowl (21). Other aspects of the new device (10 involve particular nozzle configurations and relationships and a restrictor (103) inhibiting back flow.Type: GrantFiled: March 26, 1996Date of Patent: October 21, 1997Assignee: S. C. Johnson & Son, Inc.Inventors: John A. Boticki, James H. Lohr, Charles E. Seaman, Jr.
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Patent number: 5635058Abstract: A method, system and adapter couplings for draining the reject bypassed waste water from a reverse osmosis (R/O) filtration unit to a sewer line, and particularly adapted for use in a household or commercial undercounter R/O water filtration installation associated with an in-counter sink having a garbage disposer with its outlet connected by standard plumbing fittings to a sink drain trap in turn plumb to the sewer system. The R/O waste water drain line tube is coupled into the sink drain trap in serial drainage relation with the disposer outlet plumbing fittings by a special convertable Y-Tee plumbing fitting having an R/O drain tube inlet branch and a dishwasher drain hose inlet branch oriented at an acute angle to one another with their respective input drainage liquid flows converging at a common hose nipple outlet of the Y-Tee. The garbage disposer dishwasher drain water inlet nipple is coupled by a standard coupling hose and hose clamps to the Y-Tee outlet.Type: GrantFiled: March 16, 1995Date of Patent: June 3, 1997Inventor: Dennis E. Bowman
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Patent number: 5592964Abstract: An air gap anti-siphon system designed for high flow rate drainage of waste water from household water softeners and the like, but adapted to be converted for low flow rate drainage of waste water from household reverse osmosis units. The system includes escape passages to shunt to atmosphere any backflow from the drain system.Type: GrantFiled: August 11, 1994Date of Patent: January 14, 1997Inventor: Paul L. Traylor
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Patent number: 5535774Abstract: Apparatus is disclosed for storing and supplying water for use in a unit of catering equipment, comprising means for controlling the supply of water from a mains source to a water storage tank and means adapted to supply a predetermined volume of water from the storage tank for use in the catering equipment unit, the control means being adapted to supply water so as to maintain the quantity of water within the storage tank substantially constant wherein the volume of the storage tank is equal to, or not less than, the predetermined volume so that the storage tank may be of sufficiently small dimensions as to be located within the housing the catering equipment unit, an air gap of predetermined dimensions being provided between the mains source and the storage tank.Type: GrantFiled: February 3, 1995Date of Patent: July 16, 1996Assignee: Premark FEG CorporationInventor: Gary Davies
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Patent number: 5522419Abstract: An improved venturi eductor for proportional dispensing of chemicals into flowing water includes a large anti-siphoning air gap section. The air gap section includes an outer wall and an inner wall with a gap between the walls. Both walls include offset vents or windows that provide an indirect path from the center of the air gap to the exterior of the eductor. The eductor is made from several molded parts that may be assembled without requiring machining. Further, eductor has a unique spray shield design that more effectively controls water splash in the eductor section and simplifies assembly.Type: GrantFiled: June 26, 1995Date of Patent: June 4, 1996Assignee: Hydro Systems CompanyInventor: William F. Sand
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Patent number: 5518020Abstract: This proportioner (10) is used in conjunction with a water supply connector (12) to provide a fluid mixing device for water and liquid detergent. The proportioner (10) includes a valve body (20) providing an inlet nozzle (14) and an air gap chamber (15) and an outlet (18) housing a venturi system (16). The venturi system (16) includes a venturi nozzle (40) aligned with the inlet nozzle (14) and having deflecting flats (42), a venturi tube (46) and a venturi throat (52) communicating with a detergent induction fitting (50).Type: GrantFiled: June 14, 1994Date of Patent: May 21, 1996Assignee: Dema Engineering Co.Inventors: Michael L. Nowicki, Paul E. Naslund
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Patent number: 5514344Abstract: Microorganism growth within water chambers of air conditioning systems is controlled by the periodic introduction of minute quantities of biocidal materials. A large volume reservoir holds a concentrated solution of biocidal material. A pump, fed from the reservoir, pumps the solution through a tube to the water chamber. The pump is actuated for very short duration periods so that only a very small volume of the solution is dispensed. The time interval between periods is very long so that the biocide concentration in the water chamber is renewed as required. The duration of the pumping periods and the time interval between periods are adjustable by controls in a timer. A normally closed check valve in the line keeps the line full between periods. An antisiphon mechanism is provided in the line when it branches. An alarm mechanism is optionally provided to warn when the reservoir solution is depleted.Type: GrantFiled: August 15, 1994Date of Patent: May 7, 1996Inventor: Raymond D'Agaro
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Patent number: 5462079Abstract: A hot and cold water mixing valve for use with faucets, shower/tub controls and other plumbing fittings includes a sleeve having a hot water inlet and a cold water inlet spaced therefrom and an outlet axially spaced from the inlets. There is a stem movable within the sleeve to control water flow from the inlets to the outlet. There is a water passage between the exterior of the stem and the interior of the sleeve and there is an axially extending air passage within the stem having an outer end in communication with air at ambient pressure. There are air outlets in the stem intermediate its ends which connect the air passage with the exterior of the stem. The stem exterior and the sleeve interior cooperate to provide an anti-siphon device to draw air from the air outlets into the water passage.Type: GrantFiled: December 5, 1994Date of Patent: October 31, 1995Assignee: Moen IncorporatedInventors: Todd C. Loschelder, Erwin F. Mikol
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Patent number: 5449456Abstract: A household under-counter reverse osmosis (R/O) water filtration installation wherein the R/O reject waste water under-counter drain line is coupled into a sink drain trap in parallel drainage relation with a garbage disposer sink by a baffle Tee plumbing fitting having first and second normally open inlets perpendicular to one another. The garbage disposer outlet is coupled by a standard slip fit single inlet/outlet fitting to the baffle Tee first inlet. The baffle tee has a single outlet slip coupled to the inlet of the trap. An R/O drain adapter elbow of the invention has its inlet connected to the waste water drain line tube and its outlet coupled to the Tee second inlet. The adapter provides an end closure structure which, with the elbow, sealably closes the second inlet of the Tee.Type: GrantFiled: March 7, 1994Date of Patent: September 12, 1995Inventor: Dennis E. Bowman
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Patent number: 5305778Abstract: An air gap apparatus for plumbing applications such as reverse osmosis (RO) units and other systems in which reject water empties at a relatively slow rate into a drain line. The apparatus can be incorporated in an under-the-counter unit or in a countertop embodiment which eliminates umbilical connections between the RO unit and the kitchen faucet and sink drain. The apparatus has a conventional air gap to protect against back siphoning and against high velocity backflow from the drainage line. It uses a deflector wall in combination with a supplemental opening and one or more backflow restrictors to slow and shunt any backflow to atmosphere. Different styles of countertop and wall mount installations are disclosed, as well as various deflector walls and back flow devices.Type: GrantFiled: December 31, 1992Date of Patent: April 26, 1994Inventor: Paul L. Traylor
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Patent number: 5217038Abstract: Pleural and other body fluids that may harbor disease organisms are emptied from a container by connecting the container to a venturi device and running water under pressure through the venturi device so that the fluids in the container are entrained into the flow of water under pressure. The outlet of the venturi device is in fluid communication with a sanitary sewer.Type: GrantFiled: March 31, 1992Date of Patent: June 8, 1993Assignee: PPPK, Inc.Inventor: Stanley N. Pinder
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Patent number: 5199455Abstract: An anti-siphon drain conduit. First and second cylindrical tubular portions with a U-shaped tubular portion interposed therebetween, and communicating with, the first and second cylindrical tubular portions. A drain passage extends through the conjoined tubular portions. A siphon break passage communicates with the drain passage at approximately the intersection of one of the cylindrical tubular portion and the U-shaped portion. A flap valve is formed integrally with at least one of the tubular portions for closing the siphon break passage upon the presence of liquid flowing through the drain passage. A bleeder cap is fitted to the siphon break passage. The bleeder cap has a dome portion penetrated by an aperture and an accordion portion. The bleeder cap serves freely to admit atmospheric pressure therethrough while tending to restrict any liquid that inadvertently enters the siphon break from exiting the siphon passage into atmosphere.Type: GrantFiled: November 27, 1991Date of Patent: April 6, 1993Assignee: Chardon Rubber CompanyInventor: Anthony S. Dlouhy
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Patent number: 5176165Abstract: An air gap apparatus particularly adapted for use in reverse osmosis (RO) units in which reject water must be carried off to a drain line. The apparatus is adapted for incorporation in an RO unit as original equipment or for addition later as an after market item. It provides air gap protection against backsiphoning, and also includes a deflector wall and supplemental opening for shunting to atmosphere any high velocity backflow from the drainage line. Various forms of check valves are disclosed for use with the air gap apparatus to provide further protection against contamination of the potable water system by backflows, the check valves being adapted in certain embodiments for connecting together conduit sections within which the check valves have been installed. Also, a compact and inexpensive form of trap is disclosed for use in systems which do not include a conventional drain trap.Type: GrantFiled: October 23, 1991Date of Patent: January 5, 1993Inventor: Paul L. Traylor
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Patent number: 5127427Abstract: A novel drinking water faucet of the type used with household water purification system is provided. The faucet includes a spout, a valve, means for opening and closing said valve, a waste water inlet, an air gap, and a waste water outlet. The faucet includes means for accommodating the visual display of a water quality meter. The faucet can be mounted in either a right-handed or left-handed configuration from above the mounting surface.Type: GrantFiled: May 8, 1991Date of Patent: July 7, 1992Assignee: Culligan International CompanyInventors: Andrew J. Kajpust, Ronald M. Matyja
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Patent number: 5029612Abstract: An emergency water supply barrel that would be connected to one of the water faucets of a house. The water supply barrel has an inlet port and an outlet port formed adjacent the top end of the barrel. A tubular pipe within the barrel has its top end connected to the inlet port and its bottom end located adjacent the bottom wall of the barrel. A hose would normally be connected to the outlet port of the barrel and water delivered through this hose would come from the top of the barrel while new water entering the barrel would be delivered to its bottom end to prevent stagnant water from being stored in the barrel.Type: GrantFiled: October 22, 1990Date of Patent: July 9, 1991Inventor: Virgilio M. Simbulan
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Patent number: 5016667Abstract: A device for a dishwasher comprising a tub (10) in which liquid is circulated for cleaning the dishes. The dishwasher has a drain pump (14) with an inlet which is placed adjacent the bottom of the tub and a conduit (16) which is connected to the outlet (15) of the pump through which the liquid is emptied from the machine. The conduit comprises an ejector (17) through which the liquid flows during emptying, the suction side of the ejector being connected to the tub.Type: GrantFiled: November 8, 1990Date of Patent: May 21, 1991Assignee: Aktiebolaget ElectroluxInventor: Anders K. H. Tolf
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Patent number: 5010922Abstract: The faucet is installed with the use of a pair of interfitting plates, one, the base plate, secured to the bottom of the faucet base, the other, the installation plate, secured to the sink over the access hole in the sink. The installation plate has upstanding elements which fit into narrowing openings in the base plate. When the plates are brought together and the base is turned for 20.degree. or so, the elements wedge against the sides of the openings respectively to give a tight fit, securing the faucet to the sink. A resilient seal urges the faucet base upward, enhancing the attachment.Type: GrantFiled: September 10, 1990Date of Patent: April 30, 1991Assignee: WPM, Inc.Inventor: Frank J. Agresta
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Patent number: 4998555Abstract: The faucet includes a unitary valve stem, the lower end of which is tapered and sits in a cup-shaped valve element for low-friction connection and easy rotary adjustment of the faucet outlet.Type: GrantFiled: May 18, 1990Date of Patent: March 12, 1991Inventors: Dirck Barhydt, Sr., Frank J. Agresta
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Patent number: 4967784Abstract: This faucet has a base assembly with an air break module for the brine waste from a reverse-osmosis filter. The break outlet at the bottom of the break pocket has an angled fitting which aims the downstream waste up out of the base assembly in event of a backup. The faucet includes a unitary valve stem, the lower end of which is tapered and sits in a cup-shaped valve element for low-friction connection and easy swiveling adjustment of faucet outlet. Finally, the faucet is installed with the use of a pair of interfitting plates, one, the base plate, secured to the bottom of the faucet base, the other, the attachment plate, secured to the sink around the access hole in the sink. The attachment plate has upstanding outward ears which fit into tapered openings in the base plate. When the base is turned, for 20.degree. or so, the ears wedge against the sides of the openings respectively to give a tight fit, securing the faucet in the sink.Type: GrantFiled: December 11, 1989Date of Patent: November 6, 1990Assignee: WPM, Inc.Inventors: Dirck Barhydt, Sr., Frank J. Agresta
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Patent number: 4960139Abstract: A water distributing device for a household washing machine has a cold water and hot water supply system. A water distributing element is provided to supply hot and cold water together, or cold water only, to a chemical additive dispenser for the purpose of flushing various chemical additives from the dispenser into the tub of the washing machine during a washing cycle. The water distributing element is designed to have separate flow channels therein for cold and hot water while being able to supply both the cold and hot water to the same water distributing pipe leading to the chemical additive dispenser.Type: GrantFiled: September 27, 1989Date of Patent: October 2, 1990Assignee: Industrie Zanussi SpAInventor: Pietro Rizzetto
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Patent number: 4938245Abstract: A toilet refill valve is described for refilling a water closet after each flushing, which produces minimal noise during the refill process. The valve includes a valve device which can open to pass water to a vertical outlet tube that empties into the bottom of the water closet. An anti-siphon air tube near the top of the outlet tube has an upper end open to the atmosphere and a lower end facing downwardly along the outlet tube. A restriction in the outlet tube below the air tube, causes water to fill the outlet tube and at least the bottom of the air tube for a water inlet pressure of at least 20 psi. The water at the bottom of the air tube prevents air from being dragged into the downwardly facing air tube, to avoid the noise that would result from such air flowing through the air tube and bubbling out of the bottom of the outlet tube.Type: GrantFiled: September 25, 1989Date of Patent: July 3, 1990Assignee: Fluidmaster, Inc.Inventors: Adolf Schoepe, Oscar Dufau