US20120023649A1 - Dry trap valve for use in a non-flushing urinal and other drains - Google Patents

Dry trap valve for use in a non-flushing urinal and other drains Download PDF

Info

Publication number
US20120023649A1
US20120023649A1 US13/010,669 US201113010669A US2012023649A1 US 20120023649 A1 US20120023649 A1 US 20120023649A1 US 201113010669 A US201113010669 A US 201113010669A US 2012023649 A1 US2012023649 A1 US 2012023649A1
Authority
US
United States
Prior art keywords
dent
sealing band
flow
fluid
band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/010,669
Other languages
English (en)
Inventor
Thomas Helbig
Joerg-Michael Fitzke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Falcon Waterfree Technology
Original Assignee
Falcon Waterfree Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Falcon Waterfree Technology filed Critical Falcon Waterfree Technology
Priority to US13/010,669 priority Critical patent/US20120023649A1/en
Assigned to FALCON WATERFREE TECHNOLOGIES reassignment FALCON WATERFREE TECHNOLOGIES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FITZKE, JOERG-MICHAEL, HELBIG, THOMAS
Publication of US20120023649A1 publication Critical patent/US20120023649A1/en
Assigned to OPUS BANK reassignment OPUS BANK PATENT SECURITY AGREEMENT Assignors: FALCON WATERFREE TECHNOLOGIES, LLC,
Abandoned legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/12—Urinals without flushing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/28—Odour seals
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/28—Odour seals
    • E03C1/281—Odour seals using other sealants than water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/031—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member the hinge being flexible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form

Definitions

  • the present invention relates to a flow trap, such as a cartridge used in non-flushing urinals, and having an odor preventing mechanism and, in particular, to a improved trap that uses a dry trap valve that can be used without water or sealant, thereby resulting in improved flow trap life and usability, and eliminating the need for water to flush the trap.
  • any sort of plumbing trap it is necessary to provide for the one-way flow of waste water into and through the trap to a drain line, while blocking sewer gas and other unpleasant odors from backing up from the drain line, through the trap and into the room.
  • this is accomplished by an “S” shaped trap (or similar device) that has a curve that is flushed with fresh water after each use, and with fresh water providing an odor seal.
  • Non-flushing traps are advantageous where water is scarce or expensive, or when water conservation is desired.
  • Prior art units include those described in U.S. Pat. No. 6,053,197, in which a lighter than water sealant forms the odor barrier, and wherein the sealant remains in the trap.
  • a dry trap valve such as usable in a non-flushing urinal and other drains, is employed to transport a fluid, such as urine or other wastewater to a sewer line for receipt and disposal of the wastewater.
  • the dry trap valve includes a holder (e.g., a band holder) having an entry for receipt of the wastewater, a drain for disposal of the wastewater, a passageway (e.g., dent, depression or bypass) for conducting the wastewater from the entry to the drain, and an element e.g., a sealing band) for sealingly covering the passageway.
  • the sealing band includes a hinged portion adjacent the lower end of the dent and is disposed to articulate upon flow of the wastewater from the dent and to permit the wastewater to flow to the drain and to close in the absence of the wastewater flow. Gases from the sewer line also press upon the sealing band in the absence of wastewater flow to further seal the dent.
  • FIG. 1 is a perspective view of a trap or cartridge designed for use in a non-flushing urinal;
  • FIG. 2 is a cross-sectional view of the trap or cartridge as depicted in FIG. 1 , and further illustrating its positioning in a urinal;
  • FIG. 3 is a cross-sectional view of the trap or cartridge as portrayed in FIG. 1 , taken at a 90° view with respect to that shown in FIG. 2 , and likewise illustrating its positioning in a urinal;
  • FIG. 4 is a top view of the trap or cartridge as depicted in FIGS. 1-3 , with internal and bottom components thereof illustrated in phantom;
  • FIG. 5 is an exploded view in perspective of the trap or cartridge as depicted in FIGS. 1-4 , with internal components thereof, including the dry trap valve;
  • FIG. 6 is a perspective view of the bottom portion of the trap or cartridge as depicted in FIGS. 1-5 ;
  • FIG. 7 is a perspective view of base or base portion of the trap or cartridge as depicted in FIGS. 1-5 ;
  • FIGS. 8 and 9 are differently angled perspective views of the dry valve
  • FIGS. 10-13 are varying depictions of the band holder in differently angled perspective views (respectively FIGS. 10 and 11 ) and side and cross-sectional views (respectively FIGS. 12 and 13 ) of the band holder element of the dry valve illustrated in FIGS. 8 and 9 ;
  • FIGS. 14 and 15 are differently angled views of a clamp element of the dry valve which forms a component, along with the band holder of FIGS. 10-13 , of a clamping arrangement;
  • FIGS. 16-18 are views of the sealing band employed in the dry valve, in which
  • FIG. 16 illustrates the sealing band prior to its side elements being folded back and FIGS. 17 and 18 shows its side elements being folded back as clamped onto or otherwise coupled to the band holder;
  • FIGS. 19 and 20 respectively are perspective and side elevational views of the upper or top portion of the trap or cartridge as engaged by a key for its being screwed or unscrewed into and from a urinal.
  • a trap or cartridge 20 for a non-flushing urinal is shown as placed in a urinal (see FIGS. 2 and 3 ) as represented by portions thereof and designated by indicium 21 , such as exemplified in U.S. Pat. No. 6,959,723 (specifically FIG. 15 thereof), whose contents are incorporated herein as if set forth in haec verba.
  • Trap 20 comprises a top portion 22 , which is disposed to support a dry valve 24 having an entry tube or dry valve entry 32 , and a base portion 26 .
  • Top portion 22 includes a cover 28 which, in turn, includes an entry opening 30 for receipt of urine or other wastewater.
  • An O-ring 23 within an annular slot in cover 28 provides a seal with urinal 21 .
  • a downwardly extending lip or brim 31 is formed on the underside of cover 28 and surrounds opening 30 , thereby to enable dry valve 24 to be secured to entry tube 32 . Wastewater is directed by cover 28 to opening 30 where it enters entry tube 32 of dry valve 24 .
  • a barrier 70 separates the cartridge into two compartments, a fluid inlet compartment and a fluid outlet compartment, for example as illustrated and described in U.S. Pat. No. 7,575,022 whose contents are incorporated herein as if set forth in haec verba.
  • the fluid outlet compartment terminates in a drain 40 (see FIGS. 2 , 3 - 5 and 7 ), from whence it passes to a sewer line (as symbolized by enclosure 41 ) or similar outlet.
  • Barrier 70 terminates in a toothed comb 72 and, when top portion is coupled together with base or bottom portion 26 , slips into guiding slots 74 thereof.
  • the base portion is further provided with teeth 76 which cooperate with the teeth of comb 72 to strain or otherwise catch debris and the like.
  • dry valve 24 comprises a band holder or rigid portion 34 formed generally as a planar ramp having a front side 34 A and a back side 34 B (shown in isolation in FIGS. 10-13 ), a clamp 38 (shown in isolation in FIGS. 14 and 15 ) and a sealing band or movable portion 50 (shown in isolation in FIGS. 16-18 ).
  • Entry tube 32 is on an upper portion of band holder 34 and is adapted to receive wastewater from opening 30 in cover 28 .
  • a dent, depression or bypass 36 (see FIGS. 3 , 5 , 10 and 11 ) is formed in band holder 34 and extends or protrudes from its back side 34 B.
  • Dent 36 includes lower and upper ends 36 A and 36 B in which lower end 36 A is distanced from entry 32 and upper end 36 B is positioned adjacent to entry 32 .
  • a fluid passage for the wastewater passes from entry tube 32 to dent 36 , along a flattened portion 39 of band holder 34 , and into base 26 of trap 20 , where it can flow out of the trap or cartridge through drain 40 (see FIGS. 2 , 3 - 5 and 7 ), from whence it passes to sewer line 41 or similar outlet.
  • Band holder 34 and clamp 38 can be made of any number of materials, such as plastic, metal, sintered ceramic, or any material that can be molded into the desired shape and is reasonably rugged. It has been found that acrylonitrile butadiene styrene (ABS) or polypropylene (PP) work well in this application.
  • ABS acrylonitrile butadiene styrene
  • PP polypropylene
  • Sealing band 50 can be made of any flexible material like rubber, silicon rubber or any thermoplastic elastomer.
  • a synthetic rubber sheet with a thickness in the range of 0.2 mm-0.4 mm has been found to work well.
  • band holder 34 can be attached to trap 20 in any number of ways, it has been found that glueing, compression fit, snap fit and ultrasonic welding all yield satisfactory results.
  • the attachment preferably is such that flattened portion 39 forms a downward slope at an angle of about 10° to 50° from the vertical and, in a preferred embodiment, is about 30° (as generally seen in FIGS. 11 and 12 ); however, it is to be understood that, at least as presently formulated, dry valve 24 is capable of functioning between the horizontal to close to the vertical, that is, within the angle ranges of 0° to less than 90°.
  • band holder 34 has two upper slots, to with, right upper slot 42 A and left upper slot 42 B, and two lower slots, right lower slot 44 A and left lower slot 44 B.
  • clamp 38 has corresponding prongs, namely right upper prong 46 A, left upper prong 46 B, left lower prong 48 B and right lower prong 48 A.
  • the respective prongs of clamp 38 fit and snap into the slots in band holder 34 to provide a clamping arrangement, viz., prong 46 A into slot 42 A, prong 46 B into slot 42 B, prong 48 A into slot 44 A, and prong 46 B into slot 44 B.
  • sealing band 50 has an upper portion 56 , a lower portion 58 , a right projection wing 54 A and a left projection wing 54 B.
  • Upper portion 56 is positioned generally atop dent upper end 36 B and lower portion 58 is positioned generally below dent lower end 36 A.
  • projection wings 54 A and 54 B are folded back upon themselves as illustrated in FIGS. 17 and 18 , generally along dashed fold lines 55 , as shown in FIG. 16 , which also illustrates how the sealing band projection bands would be bent or folded over when the sealing band is secured to band holder 34 .
  • sealing band 50 is placed onto front side 34 A of band holder 34 , such that it completely blocks entry tube 32 , that is, sealing band upper portion 56 extends from at least as high as upper slots 42 A and 42 B, and lower portion 58 at least covers dent 36 .
  • Projection wings 54 A and 54 B extend beyond the width of band holder 34 , and are folded back around band holder 34 , and secured thereto at its back side 34 B preferably by affixing mechanisms 35 , or by any other mechanical implementation or bonding agent that ensures a complete securing between the sealing band and the band holder so as to hold sealing band 50 in position.
  • affixing mechanism 35 comprises arrow-headed punch-throughs extending outwardly from holder back side 34 A for piercing through projection wings 54 A and 54 B of sealing band 50 .
  • Other fixation/anchorage technology known in the art may be used, particularly when overmolding (e.g., multiple molding techniques) technology is utilized.
  • lower portion 58 of sealing band 50 is capable of or otherwise disposed to flip or hinge upwards along line A-A′ in response to urine flow.
  • Line A-A′ is located just beneath projection wings 54 A and 54 B toward the lower end of the sealing band 50 , such that most of dent 36 is always covered by sealing band 50 even when wastewater is flowing, and most of the portion of the sealing band that does flip upwards, from line A-A′ to the lower end of the band 50 , lays beyond the lower end of dent 36 , utilizing sealing band 50 as a hinge.
  • This organization results in an articulated or hinged movement that allows valve 24 to open and to close. The wastewater flow lifts the sealing band up to open and, after the liquid flow, gravity closes the opening again.
  • Sealing band 50 is coupled to band holder 34 to cover dent 36 .
  • the sealing band is held in place by wrapping both wing portions 54 A and 54 B about sides 34 A and 34 B of the band holder, by utilizing arrow-headed punch-throughs to pierce wing portions 54 A and 54 B, and by placing clamp 38 over sealing band 50 to clamp it to band holder 34 .
  • the preferred clamping is to make use of a press fitting of right upper prong 46 A into right upper slot 42 A, left upper prong 46 B into left upper slot 42 B, right lower prong 48 A into right lower slot 44 A, and left lower prong 48 B into left lower slot 44 B.
  • Clamp 38 also has a pair of curved flanges, right flange 52 A and left flange 52 B.
  • the flanges are spaced far enough apart so as not to cover dent 36 , for urging or pressing sealing band 50 against band holder 34 .
  • sealing band projection wings 54 A and 54 B at their lower edges terminate before lower end 36 A of dent 36 , while upper portion 56 of sealing band 50 extends beyond upper end 36 B of dent 36 , which is fully covered by sealing band 50 in combination with and compressed by clamp 38 to form a seal.
  • the dimensions of the above parts are generally based upon the size of the urinal trap.
  • the size and shape (curvature or otherwise) of dent 36 can be adjusted depending upon the anticipated liquid flow.
  • sealing band 50 In operation, between uses of trap 20 , sealing band 50 is held in place, blocking dent 36 and entry tube 32 , in large part by the force of gravity, due to the angle of flattened portion 39 .
  • the primary purpose of the elastomeric qualities of sealing band 50 is to use it as a hinge. Because sealing band 50 is lying flat and sealed against dent 36 and entry tube 32 , sewer gasses and unpleasant odors from sewer line 41 are blocked from entering the room. It has been found that pressure from the sewer gasses from sewer line 41 are able to urge sealing band 50 more firmly against dent 36 and entry tube 32 .
  • wastewater When the urinal is utilized, wastewater will be directed to entry opening 30 of the trap, and therethrough to entry tube 32 of dry valve 24 .
  • the force of the wastewater through entry tube 32 and dent 36 provides adequate pressure to overcome the force of gravity that is holding sealing band 50 in place, and urges the sealing band upwards, allowing the wastewater to flow past, along flattened portion 39 , and to drain 40 .
  • gravity again urges sealing band 50 downward against dent 36 and entry tube 32 , again providing a seal against gas and odor.
  • wastewater or other fluids are transported from opening 30 , through drain 40 and to sewer line 41 .
  • cartridge 20 can be inserted or removed, such as by being screwed into or removed from a urinal by use of a key 62 .
  • Key 62 includes a bent tip 64 and a stop angled part 66 at one end and a handle 68 at its other end. Bent tip 64 is disposed to fit within entry opening 30 of top portion 22 and to be canted therein. Part 66 contacts cover 28 to aid in the attachment of tip 64 within opening 30 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Check Valves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Non-Flushing Toilets (AREA)
  • Sewage (AREA)
US13/010,669 2010-01-20 2011-01-20 Dry trap valve for use in a non-flushing urinal and other drains Abandoned US20120023649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/010,669 US20120023649A1 (en) 2010-01-20 2011-01-20 Dry trap valve for use in a non-flushing urinal and other drains

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33630010P 2010-01-20 2010-01-20
US13/010,669 US20120023649A1 (en) 2010-01-20 2011-01-20 Dry trap valve for use in a non-flushing urinal and other drains

Publications (1)

Publication Number Publication Date
US20120023649A1 true US20120023649A1 (en) 2012-02-02

Family

ID=44083856

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/010,669 Abandoned US20120023649A1 (en) 2010-01-20 2011-01-20 Dry trap valve for use in a non-flushing urinal and other drains

Country Status (17)

Country Link
US (1) US20120023649A1 (ko)
EP (1) EP2526232A2 (ko)
JP (1) JP2013517403A (ko)
KR (1) KR20130001721A (ko)
CN (1) CN102939424B (ko)
AU (1) AU2011207259A1 (ko)
BR (1) BR112012017984A2 (ko)
CA (1) CA2787513A1 (ko)
CO (1) CO6602148A2 (ko)
CR (1) CR20120424A (ko)
IN (1) IN2012DN06389A (ko)
MX (1) MX2012008464A (ko)
NZ (1) NZ601273A (ko)
RU (1) RU2012135509A (ko)
SG (1) SG182620A1 (ko)
WO (1) WO2011091183A2 (ko)
ZA (1) ZA201205435B (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014193981A1 (en) * 2013-05-28 2014-12-04 Falcon Waterfree Technologies, Llc Directional fluid inlet
US10182688B2 (en) 2013-05-28 2019-01-22 Falcon Waterfree Technologies, Llc Splash-reducing and velocity-increasing cartridge exit
US10197430B2 (en) 2014-01-20 2019-02-05 Falcon Waterfree Technologies, Llc Visual indicator
US10273675B2 (en) 2013-04-26 2019-04-30 Falcon Waterfree Technologies, Llc Hybrid trap with water injection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200491442Y1 (ko) * 2018-03-23 2020-04-08 정호수 이물질의 끼임을 최소화하여 오작동을 방지하는 악취유입과 하수의 역류를 차단하는 배수트랩

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266569A (en) * 1979-04-25 1981-05-12 Wilson Harold L Check valve
US5601117A (en) * 1995-02-21 1997-02-11 Trw Inc. Flap-type pressure relief valve
US20060207005A1 (en) * 2005-03-16 2006-09-21 Janssen Terrance E Cartridge apparatus for urinal
US7527073B2 (en) * 2003-04-12 2009-05-05 Neoperl Gmbh Backflow preventer
EP2088252A2 (en) * 2007-05-17 2009-08-12 phs Group Plc Odour seal for an urinal

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296309A (en) 1994-12-22 1996-06-26 Hepworth Building Prod Non-return device
US6053197A (en) 1998-09-14 2000-04-25 Gorges; Ditmar L. Horizontal-flow oil-sealant-preserving drain odor trap
US6959723B2 (en) 1995-10-25 2005-11-01 Falvon Waterfree Technologies Oil sealant-preserving drain odor trap
EP1176261A1 (en) * 1995-10-25 2002-01-30 Ditmar L. Gorges Odor trape apparatus
JP2000087412A (ja) * 1998-09-17 2000-03-28 Hashimoto Sangyo Kk バルブ装置
US6644339B2 (en) * 2000-02-29 2003-11-11 Falcon Waterless Technologies Horizontal-flow trap and housing assembly with odor preventing closure mechanism
KR20030088313A (ko) * 2002-05-14 2003-11-19 김성숙 하수관의 악취 역류방지구
US7575022B2 (en) 2003-08-25 2009-08-18 Falcon Waterfree Technologie Diverter, liquid-level indicator and chemical pre-treatment and post-treatment implementations useful in waterless urinals
JP2007518005A (ja) * 2004-01-09 2007-07-05 ファルコン ウオーターフリー テクノロジーズ ダイバータ、液レベル指示器、水なし小便器に有用な化学的な前処理及び後処理装置
SE526363C2 (sv) * 2004-03-15 2005-08-30 Sjoebo Bruk Ab Luktspärr
JP4521314B2 (ja) * 2005-05-17 2010-08-11 有限会社サンメイ・ジェイジェイ 非水洗式小便器脱臭装置
FR2896292B1 (fr) * 2006-01-17 2010-04-30 Wirquin Plastiques Sa Dispositif anti-retour destine a etre monte entre deux conduits d'evacuation d'un fluide, incluant un siphon sec et comprenant un corps flexible.
US20080028504A1 (en) * 2006-06-16 2008-02-07 Higgins Michael L Urinal cartridge with improved performance
DE202010009936U1 (de) * 2010-07-07 2010-09-30 Dahm, Peter Kasper, Norwood Ventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266569A (en) * 1979-04-25 1981-05-12 Wilson Harold L Check valve
US5601117A (en) * 1995-02-21 1997-02-11 Trw Inc. Flap-type pressure relief valve
US7527073B2 (en) * 2003-04-12 2009-05-05 Neoperl Gmbh Backflow preventer
US20060207005A1 (en) * 2005-03-16 2006-09-21 Janssen Terrance E Cartridge apparatus for urinal
EP2088252A2 (en) * 2007-05-17 2009-08-12 phs Group Plc Odour seal for an urinal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10273675B2 (en) 2013-04-26 2019-04-30 Falcon Waterfree Technologies, Llc Hybrid trap with water injection
US10975560B2 (en) 2013-04-26 2021-04-13 Falcon Water Technologies, LLC Hybrid trap with water injection
WO2014193981A1 (en) * 2013-05-28 2014-12-04 Falcon Waterfree Technologies, Llc Directional fluid inlet
US20140352045A1 (en) * 2013-05-28 2014-12-04 Falcon Waterfree Technologies, Llc Directional fluid inlet
TWI580847B (zh) * 2013-05-28 2017-05-01 發肯免水科技公司 用於無水小便斗濾筒之流體入口部
US10182688B2 (en) 2013-05-28 2019-01-22 Falcon Waterfree Technologies, Llc Splash-reducing and velocity-increasing cartridge exit
US10184235B2 (en) * 2013-05-28 2019-01-22 Falcon Waterfree Technologies, Llc Directional fluid inlet
US10197430B2 (en) 2014-01-20 2019-02-05 Falcon Waterfree Technologies, Llc Visual indicator

Also Published As

Publication number Publication date
SG182620A1 (en) 2012-08-30
AU2011207259A1 (en) 2012-08-02
CN102939424B (zh) 2015-04-29
IN2012DN06389A (ko) 2015-10-02
JP2013517403A (ja) 2013-05-16
MX2012008464A (es) 2012-11-06
KR20130001721A (ko) 2013-01-04
WO2011091183A2 (en) 2011-07-28
CN102939424A (zh) 2013-02-20
ZA201205435B (en) 2013-09-25
CR20120424A (es) 2013-03-21
EP2526232A2 (en) 2012-11-28
RU2012135509A (ru) 2014-02-27
BR112012017984A2 (pt) 2016-05-03
CA2787513A1 (en) 2011-07-28
NZ601273A (en) 2014-12-24
CO6602148A2 (es) 2013-01-18
WO2011091183A3 (en) 2011-11-17

Similar Documents

Publication Publication Date Title
US20120023649A1 (en) Dry trap valve for use in a non-flushing urinal and other drains
US7422034B2 (en) Check valve
US4338884A (en) Animal bite valve
US6021529A (en) Portable male urinal
US20040049846A1 (en) Trap guard device
US5802628A (en) Pressure flushing device discharge extension
EP2088252A3 (en) Odour seal for an urinal
KR101634204B1 (ko) 배수구 악취 방지 및 이물질 유입 방지 장치
DE58901702D1 (de) Verschluss fuer flexible fluessigkeitsbehaelter.
KR20080050384A (ko) 막힘 제거장치를 가지는 변기
CA2315563A1 (en) Diaphragm assembly disc
ES2051527T3 (es) Griferia sanitaria con un dispositivo de seguridad para evitar el reflujo de agua.
EP1520565A3 (en) Device for disposing excrements
KR20180000380U (ko) 회동커버의 작동을 위한 탄성수단의 고장을 방지한 배수트랩
KR20150017876A (ko) 씽크대용 악취차단장치
JP3546398B2 (ja) 排水用トラップ
US9458614B2 (en) Water conservation fixture system and method of use
EP3507427B1 (en) Shower drain fitting
JPH0674672U (ja) 電気温水器の膨張水排水路構造
WO2020175983A1 (en) Trap with removable silicone flap
KR101705484B1 (ko) 배수구의 냄새 차단 장치
EP1666676A3 (en) Odour trap
KR200252468Y1 (ko) 쓰레기 봉투 밀폐기
KR101840448B1 (ko) 무경첩 밸브방식의 배수트랩
KR20240040596A (ko) 욕실 바닥 트랩용 배수유도 및 악취 차단구

Legal Events

Date Code Title Description
AS Assignment

Owner name: FALCON WATERFREE TECHNOLOGIES, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HELBIG, THOMAS;FITZKE, JOERG-MICHAEL;SIGNING DATES FROM 20110320 TO 20110328;REEL/FRAME:026042/0753

AS Assignment

Owner name: OPUS BANK, CALIFORNIA

Free format text: PATENT SECURITY AGREEMENT;ASSIGNOR:FALCON WATERFREE TECHNOLOGIES, LLC,;REEL/FRAME:033793/0072

Effective date: 20140829

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION