EP0187657B1 - Toilet tank gasket - Google Patents

Toilet tank gasket Download PDF

Info

Publication number
EP0187657B1
EP0187657B1 EP86100129A EP86100129A EP0187657B1 EP 0187657 B1 EP0187657 B1 EP 0187657B1 EP 86100129 A EP86100129 A EP 86100129A EP 86100129 A EP86100129 A EP 86100129A EP 0187657 B1 EP0187657 B1 EP 0187657B1
Authority
EP
European Patent Office
Prior art keywords
gasket
tank
wall
extension
toilet
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.)
Expired
Application number
EP86100129A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0187657A3 (en
EP0187657A2 (en
Inventor
Ronald N. Grimstad
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.)
Kohler Co
Original Assignee
Kohler Co
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 Kohler Co filed Critical Kohler Co
Publication of EP0187657A2 publication Critical patent/EP0187657A2/en
Publication of EP0187657A3 publication Critical patent/EP0187657A3/en
Application granted granted Critical
Publication of EP0187657B1 publication Critical patent/EP0187657B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/24—Low-level flushing systems
    • E03D1/26—Bowl with flushing cistern mounted on the rearwardly extending end of the bowl

Definitions

  • This invention relates to a one piece toilet tank gasket for use under the tank bottom wall. It also functions to provide washer surfaces inside the tank and cushionary bumpers between the tank bottom and bowl extension.
  • the tank bottom wall In assembling a toilet tank to a toilet bowl in a "two piece" type toilet, the tank bottom wall usually rests on a rearward extension from the bowl. It is then necessary to employ several fastening and sealing components to connect the outlet of the tank to the inlet of the toilet extension, and also to secure the toilet tank to the toilet bowl. Usually, several bolt holes are formed in the tank bottom wall and bowl extension upper wall. Bolts then extend through these holes. To prevent leakage, a washer is then required in the tank (under the bolt head). Also, a gasket is required under the tank bottom wall to seal between the tank bottom wall and the extension. In addition, cushionary bumpers are usually inserted around each bolt (between the tank and bowl extension).
  • the object of the present invention is to provide an improved gasket for sealing engagement between a bottom surface of a toilet tank and an upper surface of a toilet bowl extension.
  • the present invention provides a one-piece gasket for sealing engagement between a bottom surface of a toilet tank that has a tank outlet opening therethrough, and an upper surface of a toilet bowl extension that has an inlet opening therethrough, said gasket being suitable for use when the tank and bowl extension are secured together by a fastener extending through fastener holes in the tank bottom and extension top, comprising: a gasket wall having an opening therethrough that is alignable with the tank outlet and extension inlet, said gasket wall having a sealing portion around said gasket opening that is suitable to be sandwiched by the tank bottom and bowl extension top; connectors attached to said gasket wall and extending upward therefrom, each having an axial fastener through bore and also having an enlarged washer head adjacent its upper end, said washer head having a tapered top portion and being spaced from said gasket wall, said washer head constructed and arranged to be able to be compression fitted through a tank bottom fastener hole; whereby said axial through bore may be aligned with a tank fastener hole when the gasket
  • the washer head is of a frusto-conical configuration and the washer head, connector and gasket are all integrally formed.
  • sealing portion may comprise a depending lower ring suitable to surrounding the gasket wall opening and an upper washer ledge.
  • the gasket 10 is shown positioned between a standard toilet tank 11 and a standard toilet bowl extension 12.
  • the toilet tank 11 will have the usual fastener openings 13 for the passage of the bolts 14 therethrough.
  • a central opening 15 is also provided through the bottom wall 16 for the reception of a lower portion of the flush valve 18.
  • the usual inlet pipe 41 provides a source of water to the flush valve 18.
  • the one piece toilet tank gasket 10 includes a substantially flat gasket wall portion 19 in which is formed an opening 20 for orientation with the opening 15 in the toilet tank 11.
  • the wall 19 has opposing sides 21 and 22 with a central depending sealing ring 23 extending from the lower side 22 and including an annular lip member 33 surrounding an annular washer ledge 34. This is best seen in conjunction with Figures 2, 3 and 4.
  • a separate and optional friction washer 24 can be accommodated within the lip member 33 of ring 23, and will be held therein by the flange 26 of the valve nut 25.
  • the usual opening 27 is provided in the toilet bowl extension 12 into which will be positioned the lower portion 17 of the flush valve 18.
  • the usual fastener openings 28 are also provided in the flange section 39 of the toilet bowl extension 12 for the reception of the bolts 14 to which will be attached the nuts 29.
  • each mushroom- like connector member 30 which extend upwardly from the wall 19. Each will have a frusto-conical washer head end portion 31 at one end with the small diameter portion disposed at the upper end. There is also for each a spacing bumber element 32 at the lower end.
  • the connectors also have axial through bores 32A.
  • the wall 19 as it extends from the lip member 33 provides three flat walled flange portions 35, 36 and 37.
  • the connectors 30 are positioned at the apexes of these portions.
  • the flange portions 35, 36 and 37 provide an overall geometric configuration in the form of an isosceles triangle.
  • the gasket 10 will be orientated with respect to the toilet tank 11 in a manner shown in Figure 1. This will be with the openings 32A orientated with the openings 13 of the toilet tank 11 member and 28 of the bowl extension, and the opening 20 of the gasket 10 aligned with the openings 15 of the toilet tank and 27 of the bowl extension.
  • the frusto-conical member portions 31 of the washer heads will be force fitted through the openings 13 until they will snap in place (they are thus expansion fitted therein by camming therethrough). They then are inside the bottom tank wall 16 as indicated in Figure 2. But in this position the gasket will be held in place under the tank in proper automatic alignment with the threaded portion 17.
  • the next step in assembly is the placement of the friction washer 24 against the inner washer ledge 34 and screwing the valve nut 25 onto the threaded portion 17 so as to sandwich the friction washer 24 as well as the washer ledge 34 against the outside of the bottom wall 16 of the toilet tank.
  • the next assembly step is the attachment to the toilet bowl extension 12. This will be effected by locating the toilettank 11 so that the openings 13 are orientated with the openings 28 of the toiler bowl extension 12 as well as with the connectors 30.
  • the bolts 14 will be placed therethrough in a manner indicated in Figure 2, and the nuts 29 attached so that they will contact the under surface of the flange 39 of the toilet bowl extension.
  • the flange 39 of the toilet bowl 12 has a curved surface 38 for better contact with the ring lip 33 ofthe gasket member 10. Also as best seen in Figure 2, as the nuts 29 are fastened onto the bolts 14 the heads 40 of the bolts will compress the frusto-conical portions 31 of the sealing members 30 so that they assume a more perfect mushroom- type configuration. Further, it will be noted that the spacing members 32 will provide the proper spacing and cushioning of the flange 39 of the toilet bowl extension 12 from the bottom wall 16 of the toilet tank 11.
  • gasket member 10 of this invention is its ease of assembly. Separate washer parts are eliminated and proper alignment of all parts is quickly achieved. Further, since only a single large gasket element is used, loss of small washers does not occur nor does failure to include washers during assembly occur. Also, less plumbing skill is required to use this gasket, and a handyman at home is therefore more likely not to need to hire a skilled plumber when installing a toilet.
  • Rubber is the preferred material for the gasket, but other materials may also suffice if they have appropriate sealing and compression characteristics.
  • three connectors have been illustrated for use with the gasket member, any number of such connectors could be utilized, depending upon the number of threaded fastening elements required.
  • the washer ends of the connectors have been illustrated as being frusto-conical in configuration. Many other enlargements forming the washer heads (e.g., spheres) could as effectively be utilized to provide the expansion fit.
  • an integral unit made of a single material is shown, separately made parts could be assembled into one piece unit, yet follow the present design.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Gasket Seals (AREA)
EP86100129A 1985-01-08 1986-01-07 Toilet tank gasket Expired EP0187657B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68971085A 1985-01-08 1985-01-08
US689710 1985-01-08

Publications (3)

Publication Number Publication Date
EP0187657A2 EP0187657A2 (en) 1986-07-16
EP0187657A3 EP0187657A3 (en) 1987-09-02
EP0187657B1 true EP0187657B1 (en) 1989-08-16

Family

ID=24769609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100129A Expired EP0187657B1 (en) 1985-01-08 1986-01-07 Toilet tank gasket

Country Status (8)

Country Link
EP (1) EP0187657B1 (enrdf_load_stackoverflow)
JP (1) JPS61179929A (enrdf_load_stackoverflow)
KR (1) KR950002247B1 (enrdf_load_stackoverflow)
CA (1) CA1263501A (enrdf_load_stackoverflow)
DE (1) DE3665085D1 (enrdf_load_stackoverflow)
ES (1) ES8702613A1 (enrdf_load_stackoverflow)
MX (1) MX165499B (enrdf_load_stackoverflow)
PH (1) PH22699A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924533A (en) * 1988-11-14 1990-05-15 American Standard Inc. Coupling means for toilet tank and bowl assembly
JPH0612571U (ja) * 1992-07-17 1994-02-18 株式会社イナックス 洗浄タンク取付用の密結パッキン
US7913328B2 (en) * 2006-09-20 2011-03-29 Kohler Co. Toilet tank connector assembly
JP5648267B2 (ja) 2008-05-30 2015-01-07 Toto株式会社 貯水タンク及びそれを備えた水洗大便器
JP6794360B2 (ja) * 2014-09-12 2020-12-02 エーエス・アメリカ、インコーポレイテッドＡＳ Ａｍｅｒｉｃａ，Ｉｎｃ． 呼び水型噴出便器
EP3486386A1 (en) * 2017-11-16 2019-05-22 Roca Sanitario, S. A. Toilet, and toilet and discharge cistern assembly
FR3091885B1 (fr) * 2019-01-18 2021-05-21 Wirquin Plastiques Sa Ensemble pour toilettes comprenant un joint annulaire d’étanchéité intercalé entre le réservoir et la cuvette

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520575A (en) * 1948-11-04 1950-08-29 Mansfield Sanitary Pottery Inc Flush tank and bowl combination
US2743460A (en) * 1953-08-03 1956-05-01 Leonard W Youngstrom Adjustable connector for tank and bowl of a close coupled water-closet combination
US3448466A (en) * 1967-12-22 1969-06-10 American Standard Inc Coupling bolt with plastic head
BE790926A (fr) * 1971-11-05 1973-03-01 Ifoeverken Ab Dispositif en vue de raccorder le reservoir de chasse a la cuvette d'uncabinet d'aisances

Also Published As

Publication number Publication date
JPS61179929A (ja) 1986-08-12
ES550706A0 (es) 1987-01-01
JPH0451614B2 (enrdf_load_stackoverflow) 1992-08-19
DE3665085D1 (en) 1989-09-21
EP0187657A3 (en) 1987-09-02
ES8702613A1 (es) 1987-01-01
EP0187657A2 (en) 1986-07-16
KR950002247B1 (ko) 1995-03-15
CA1263501A (en) 1989-12-05
PH22699A (en) 1988-11-14
MX165499B (es) 1992-11-16
KR860005940A (ko) 1986-08-16

Similar Documents

Publication Publication Date Title
US4757560A (en) Toilet tank gasket
US4482161A (en) Toilet bowl gasket of rubberlike material having compressible concentric ridge rings on both sides
US4090267A (en) Self caulking toilet drain
US4924533A (en) Coupling means for toilet tank and bowl assembly
US4850617A (en) Self sealing connector
US4515398A (en) Device for elevating closet bowl
CA1302455C (en) Flush valve/flush tube connection
US4886302A (en) Repair flange
EP0187657B1 (en) Toilet tank gasket
US20010050482A1 (en) Mounting ring for water closet coupling and method of installation
KR920000451B1 (ko) 세정 밸브 부착 시스템
KR200141960Y1 (ko) 리벳없는 너트판과 체결구
US5353445A (en) Conduit attachment system
US2757025A (en) Tank fitting with means to retain attaching bolts
US4445237A (en) Close coupled water-closet combination and adapter
CN212389639U (zh) 坐便器地脚安装固定件
JP2003003552A (ja) 便器の掃除口蓋
US7640603B2 (en) Cistern outlet valve mounting bracket assembly and a method of installing an outlet valve in cistern
JPH0249432Y2 (enrdf_load_stackoverflow)
US6637043B1 (en) Replaceable flush valve seat assembly
KR910000950B1 (ko) 유량감소를 보완한 분기소켓 부착장치
JPH0617907Y2 (ja) 便器用継手部の構造
CA1226103A (en) Toilet bowl gasket of rubberlike material
JPS6321826Y2 (enrdf_load_stackoverflow)
JPS6022146Y2 (ja) 排水装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19871110

17Q First examination report despatched

Effective date: 19881007

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 3665085

Country of ref document: DE

Date of ref document: 19890921

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941229

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950217

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960107

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961001

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050104

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050107