• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A strainer assembly for bathtub drains has a strainer body with a circular horizontal flange having a center opening and which is adapted to fit over and around a vertically disposed drain port in the bottom of a tub or the like. A hollow bushing extension extends downwardly from the center opening and terminates in an open lower portion with external threads. A hollow attachment bushing having a center opening is threadably secured around the lower portion of the bushing extension and extends downwardly therefrom. The attachment bushing has a lower open end with at least one crossbar extending thereacross. A bearing hub is formed in the center of the crossbar on the center axis of the aforesaid center openings. A vertically disposed threaded aperture is located in the hub and is adapted to threadably receive a connecting stud from a drain strainer or closure valve.
    公开号:US20010007159A1
    申请号:US09/777,647
    申请日:2001-02-06
    公开日:2001-07-12
    发明作者:William Ball
    申请人:Ball William T.；
    IPC主号:E03C1-22
    专利说明:
    [0001] Bathtub drains conventionally have a strainer assembly associated therewith which includes a horizontal flange that extends around the drain opening in engagement with the bottom of the tub. A threaded portion extends downwardly from the center opening of the flange and terminates in an open bottom with crossbars extending thereacross. A hub exists at the intersection of the crossbars and has a threaded aperture therein to receive the threaded stud of a strainer or a closure valve. A threaded bushing conventionally extends around the lower portion of the foregoing component and serves to connect the flange and related structure to the tub structure. [0001]
    [0002] It is often necessary to replace the conventional strainer assembly because the flange extending around the conventional drain becomes damaged, discolored, or the like. Thus, the entire assembly described above must be replaced. Such conventional strainer assemblies are relatively expensive and this expense is significantly attributed to the crossbars at the bottom of the device wherein the threaded aperture receives the threaded stub from a strainer or valve. [0002]
    [0003] It is therefore a principal object of this invention to provide a strainer assembly wherein the part of the assembly involving the horizontal flange can be easily, quickly and economically replaced. [0003]
    [0004] A further object of this invention is to provide a strainer assembly for bathtub drains and the like which includes the mounting structure for a strainer or the like in the conventional bushing of a strainer assembly and not in the portion of the device attached to the flange itself. [0004]
    [0005] These and other objects will be apparent to those skilled in the art. [0005] SUMMARY OF THE INVENTION
    [0006] The strainer assembly of this invention has a strainer body with a circular horizontal flange having a center opening and which is adapted to fit over and around a vertically disposed drain port in the bottom of a tub or the like. A hollow bushing extension extends downwardly from the center opening and terminates in an open lower portion with external threads. A hollow attachment bushing having a center opening is threadably secured around the lower portion of the bushing extension and extends downwardly therefrom. [0006]
    [0007] The attachment bushing has a lower open end with at least one crossbar extending thereacross. A bearing hub is formed in the center of the crossbar on the center axis of the aforesaid center openings. A vertically disposed threaded aperture is located in the hub and is adapted to threadably receive a connecting stud from a drain strainer or closure valve. [0007] BRIEF DESCRIPTION OF THE DRAWINGS
    [0008] FIG. 1 is a partial perspective view of a conventional bathtub structure; [0008]
    [0009] FIG. 2 is an enlarged sectional view of the strainer assembly of this invention with a conventional closure valve mounted thereon; [0009]
    [0010] FIG. 3 is a cross sectional view of the strainer assembly of this invention; [0010]
    [0011] FIG. 4 is an exploded disassembled view of the device of FIG. 3; [0011]
    [0012] FIG. 5 is a sectional view taken on line [0012] 5-5 of FIG. 3; and
    [0013] FIG. 6 is an exploded lower perspective view of the assembly of FIG. 4. [0013] DESCRIPTION OF THE PREFERRED EMBODIMENT
    [0014] As shown in FIG. 1, a bath compartment [0014] 10 has conventional walls 12 and 14 and a conventional bathtub 16. The tub 16 has a bottom 18 and a conventional vertical drain 20. A conventional water control valve 22 is located on wall 14 as is a conventional water outlet 24. A conventional drain flange 26 surrounds the drain 20.
    [0015] With reference to FIGS. 3, 4 and [0015] 6, the strainer assembly 28 of this invention has a horizontal flange 30 which is similar to the conventional horizontal flange 26. The flange 30 has a center opening 32. A bushing extension 34 extends downwardly from the center opening 32 and terminates in an open lower end 36. The bushing extension 34 is integral with the horizontal flange 30 and has external threads 38 (FIG. 4).
    [0016] An attachment bushing [0016] 40 (FIGS. 3, 4 and 6) having internal and external threads has a center opening 42 and an open lower end 44. A pair of crossbars 46 extend across the lower open end 44 and hub 48 is located at the intersection of the crossbars 46. A vertically disposed threaded aperture 50 is located in the center of hub 48. Bushing 40 is threadably mounted on the threads 38 of bushing extension 34.
    [0017] A conventional closure valve [0017] 52 is shown in FIG. 2 and has a conventional downwardly extending threaded stud 54. As discussed hereafter, the threaded stub 54 can be threadably received for attachment purposes in the threaded aperture 50 on hub 48 which is a part of the attachment bushing 40.
    [0018] The essence of this invention is that the crossbars [0018] 46 are mounted at the bottom of the attachment bushing 40 rather than at the bottom of the bushing extension 34 which is the conventional practice. As a result of changing the location of the crossbars 46 as described above, the horizontal flange 30 can be easily unscrewed from the interior of bushing 40 and can be easily replaced. The flange 30 and its bushing extension 34 are relatively inexpensive because they do not involve the expense of the conventional crossbars that are located in conventional devices. Thus, the replacement of a horizontal flange 30 does not require that the replacement horizontal flange have constructed therein a set of crossbars for purposes of mounting a closure valve 52 or the like.
    [0019] As a result, this invention provides a substitute horizontal flange [0019] 30 which eliminates the expense of using a substitute horizontal flange with the expensive crossbars therein. Thus, the crossbars 46 in the attachment bushing 40 are permanently installed in the bushing 40 and never need to be replaced even though the flange 30 is replaced.
    [0020] Thus, it is seen that this invention achieves at least all of its stated objectives. [0020]
    权利要求:
    Claims (4)
    [1" id="US-20010007159-A1-CLM-00001] 1. A strainer assembly for bathtub drains and the like, comprising,
    a strainer body having a circular horizontal flange with a center opening adapted to fit over and around a vertically disposed drain port in the bottom of a fluid receptacle,
    a hollow bushing extension extending downwardly from said center opening and terminating in an open lower portion with external threads,
    a hollow attachment bushing having a center opening threadably secured around said lower portion of said bushing extension and extending downwardly therefrom,
    said attachment bushing having a lower open end with at least one crossbar extending thereacross,
    a bearing hub formed in the center of said crossbar on the center axis of said center openings, and
    a vertically disposed threaded aperture in said hub to threadably receive a threaded connecting stud from a drain strainer or closure valve.
    [2" id="US-20010007159-A1-CLM-00002] 2. The strainer assembly of
    claim 1 wherein said flange is rigidly secured to said bushing extension.
    [3" id="US-20010007159-A1-CLM-00003] 3. The strainer assembly of
    claim 1 wherein said flange is integrally connected to said bushing extension.
    [4" id="US-20010007159-A1-CLM-00004] 4. The strainer assembly of
    claim 1 wherein said attachment bushing has both internal and external threads.
    类似技术:
    公开号 | 公开日 | 专利标题
    US6317906B1|2001-11-20|Strainer assembly for bathtub drains and the like
    US5745931A|1998-05-05|Method and means for covering the flange of a waste water strainer
    US5692248A|1997-12-02|Means for covering the flange of a waste water strainer
    US6546573B1|2003-04-15|Drain cover assembly
    US7503083B2|2009-03-17|Means for covering the flange of a waste water strainer
    US5987909A|1999-11-23|Air conditioner drain pan
    US4290445A|1981-09-22|Valve plate
    US6066119A|2000-05-23|Waste water strainer and valve
    RU2088134C1|1997-08-27|Device for attaching handle to vessel body and container provided with such device
    WO2006040856A1|2006-04-20|Water discharge trap
    US6138298A|2000-10-31|Clip on fluid overflow plate for bathtubs
    US6802424B2|2004-10-12|Strainer in shower bath tap valve
    EP1367185B1|2005-09-14|Washbasin with concealed outlet
    US6386226B1|2002-05-14|Single handle lavatory faucet with handle collar for seating valve assembly
    CA2288035C|2005-06-07|Method and means for covering the flange of a waste water strainer
    JP2000160612A|2000-06-13|Sanitary installation mounting device
    WO1997014853A1|1997-04-24|Taps
    US5161569A|1992-11-10|Water supply device for a drinking fountain
    KR200182353Y1|2000-05-15|Drain apparatus of communication cabinet
    KR19990010576A|1999-02-18|Drainage structure of water supply valve for washing machine
    TH39599A3|2000-07-31|Strainer kits for bathtub vent and the like.
    US20040133976A1|2004-07-15|Drain assembly having a removable drain plate
    EP0616085A1|1994-09-21|Recessed WC basin
    AU657633B2|1995-03-16|Spa bath and pool components
    JP3538478B2|2004-06-14|Low tank operation lever
    同族专利:
    公开号 | 公开日
    CA2265138C|2006-10-31|
    US6640358B2|2003-11-04|
    CN1086763C|2002-06-26|
    US6317906B1|2001-11-20|
    TW376419B|1999-12-11|
    CA2265138A1|1999-09-10|
    CN1240246A|2000-01-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20060219297A1|2005-04-01|2006-10-05|Sthanki Dinesh G|Drainage-aiding device and method of use thereof|
    USD884838S1|2018-02-13|2020-05-19|Wcm Industries, Inc.|Strainer|
    US10815652B2|2013-03-13|2020-10-27|Wcm Industries, Inc.|Strainer with improved flow|US729360A|1902-10-15|1903-05-26|William T Leachman|Waste and overflow fixture.|
    US1661983A|1927-08-01|1928-03-06|Ralph E Wentzel|Refuse collector|
    US2697840A|1952-06-27|1954-12-28|Kenco Products Corp|Waste and overflow fitting|
    US3169254A|1962-10-16|1965-02-16|Sterling Faucet Company|Simplified lavatory drain pipe assembly|
    US3800339A|1972-01-24|1974-04-02|P Bergin|Sink stopper|
    US4006498A|1975-09-02|1977-02-08|Casper Cuschera|Adapter for bathtub drain|
    US4146939A|1977-12-02|1979-04-03|Izzi Lewis B|Drain fitting for pre-formed or pre-assembled showers, etc.|
    US4720877A|1984-01-23|1988-01-26|Watts Robert R|Drain closure|
    US5363518A|1992-02-28|1994-11-15|Emhart Inc.|Popup drain stopper|US8028357B2|2000-06-13|2011-10-04|Wcm Industries, Inc.|Method and associated apparatus for assembling and testing a plumbing system|
    US8321970B2|2000-06-13|2012-12-04|Wcm Industries, Inc.|Method and associated apparatus for assembling and testing a plumbing system|
    US9045886B2|2000-06-13|2015-06-02|WCW Industries, Inc.|Device for concealing a plate associated with overflow plumbing|
    US8166584B2|2000-06-13|2012-05-01|Wcm Industries, Inc.|Overflow assembly for bathtubs and the like|
    US7121228B1|2004-07-27|2006-10-17|Klauber Richard M|Animal waste disposing assembly|
    USD674883S1|2004-10-22|2013-01-22|Wcm Industries, Inc.|Flexible bathtub waste pipe assembly|
    US20080196161A1|2004-10-22|2008-08-21|Wcm Industries, Inc.|Flexible Bathtub Waste Pipe Assembly for Bathtubs and the Like|
    US9015876B2|2005-08-23|2015-04-28|Wcm Industries, Inc.|Cover and method for covering the flange of a waste water strainer|
    US9015870B2|2005-08-23|2015-04-28|Wcm Industries, Inc.|Means for covering the flange of a waste water strainer|
    CA2675721C|2008-08-18|2016-05-10|Wcm Industries, Inc.|Cable actuated drain|
    US8336132B2|2008-08-18|2012-12-25|Wcm Industries, Inc.|Cable actuated drain|
    US8528122B2|2009-12-30|2013-09-10|Wcm Industries, Inc.|Drain closure device|
    WO2011160000A2|2010-06-18|2011-12-22|Tong Henry C|Drain stopper assembly|
    US8769736B2|2010-10-01|2014-07-08|Wcm Industries, Inc.|Device for concealing a plate associated with overflow plumbing|
    US8813272B2|2010-10-19|2014-08-26|Wcm Industries, Inc.|Device and method for concealing a flange of a waste water strainer|
    US9234337B2|2010-10-19|2016-01-12|Wcm Industries, Inc.|Foot-actuated drain stopper|
    CA2775487C|2011-04-26|2019-06-04|Wcm Industries, Inc.|Device for concealing a plate associated with overflow plumbing|
    US10563385B1|2016-05-17|2020-02-18|Wcm Industries, Inc.|Overflow cover interconnection system|
    US10443220B2|2016-08-12|2019-10-15|Wcm Industries, Inc.|Device for providing improved drainage|
    法律状态:
    2003-10-16| STCF| Information on status: patent grant|Free format text: PATENTED CASE |
    2007-04-04| FPAY| Fee payment|Year of fee payment: 4 |
    2009-07-14| AS| Assignment|Owner name: WCM INDUSTRIES, INC., COLORADO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BALL, WILLIAM T.;REEL/FRAME:022939/0975 Effective date: 20080721 |
    2011-05-04| FPAY| Fee payment|Year of fee payment: 8 |
    2015-05-04| FPAY| Fee payment|Year of fee payment: 12 |
    优先权:
    申请号 | 申请日 | 专利标题
    US09/037,485|US6317906B1|1998-03-10|1998-03-10|Strainer assembly for bathtub drains and the like|
    US45143499A| true| 1999-11-30|1999-11-30||
    US09/777,647|US6640358B2|1998-03-10|2001-02-06|Strainer assembly for bathtub drains and the like|US09/777,647| US6640358B2|1998-03-10|2001-02-06|Strainer assembly for bathtub drains and the like|
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