[특허]Drain clean-out assembly and method of using

Kipp, Brian Michael

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Drain clean-out assembly and method of using

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E03D-009/00
미국특허분류(USC)	004/255.01; 004/679; 137/245.5
출원번호	US-0195736 (2008-08-21)
등록번호	US-8286275 (2012-10-16)
발명자 / 주소	Kipp, Brian Michael
출원인 / 주소	Kipp, Brian Michael
대리인 / 주소	Hartman Global IP Law
인용정보	피인용 횟수 : 2 인용 특허 : 5

초록
▼

Drain clean-out assemblies that can be used to drain the contents of a drain line prior to removing a clean-out plug mounted to the assembly or to which the assembly is mounted. The drain clean-out assembly includes clean-out plug and a device for selectively preventing and permitting drainage of a fluid through the assembly. The assembly may include a housing having oppositely-disposed first and second ends and a drain between the first and second ends and in fluidic communication with an interior of the housing, wherein the first end of the housing is configured to attach to a drain line, the preventing and permitting device is within the housing, and the clean-out plug is removably attached to the housing. Alternatively, the preventing and permitting device may be permanently mounted to the clean-out plug.

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청구항
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1. In a drain clean-out assembly meeting plumbing industry standards and adapted for draining sewage from a plumbing industry standard sewage drain line of a residential or commercial building, the drain clean-out assembly having a housing and a clean-out plug, the housing having at least one mounting end and a clean-out port, the housing defining at least a portion of an interior of the drain clean-out assembly that is fluidically connected to the mounting end and to the clean-out port of the housing, the mounting end being configured and sized to attach to the sewage drain line, the clean-out port defining a clean-out access therein that is configured and sized to have a plumbing industry standard diameter to permit insertion of a rod or cable therethrough to remove an obstruction in the sewage drain line to which the drain clean-out assembly is attached with the mounting end, and the clean-out plug being removably threaded to the clean-out port of the housing so as to prevent the sewage within the interior of the drain clean-out assembly from exiting the interior through the clean-out access and being removable from the clean-out port to expose the clean-out access and enable a rod or cable to be inserted through the clean-out access to remove an obstruction in the sewage drain line to which the drain clean-out assembly is attached with the mounting end, the improvement comprising: a drain port that is in fluidic communication with the interior of the drain clean-out assembly and is separate from and in addition to the clean-out access, the drain port having a diameter of about half the size or larger than the diameter of the clean-out access and being located at or below the lowest edge of the clean-out access in order to sufficiently drain sewage from the interior of the housing as well as the interior of the sewage drain line so that the sewage will not rapidly drain from the housing as the clean-out plug is removed from the clean-out port;means located within the drain clean-out assembly for selectively preventing and permitting flow of the sewage out of the interior of the drain clean-out assembly through the drain port thereof; andmeans outside the housing for operating the preventing and permitting means while the clean-out plug is attached to the clean-out port of the housing and prevents the sewage within the interior of the drain clean-out assembly from exiting the drain clean-out assembly through the clean-out access;wherein the drain clean-out assembly enables the sewage drain line to be drained through the drain port and yet the housing, mounting end and clean-out access are configured and sized to have plumbing industry standard diameters that permit the insertion of a rod or cable through the housing, mounting end and clean-out access to remove an obstruction in the sewage drain line. 2. The drain clean-out assembly according to claim 1, wherein the preventing and permitting means comprises a plunger assembly within the housing, and the plunger assembly is operable between a first position that closes the mounting end of the housing and a second position that permits the sewage to flow into the housing through the mounting end. 3. The drain clean-out assembly according to claim 2, wherein the plunger assembly is directly mounted to the clean-out plug. 4. The drain clean-out assembly according to claim 2, wherein the clean-out plug is removably attached with threads to the clean-out port of the housing, and the plunger assembly comprises a piston affixed to the clean-out plug such that rotation of the clean-out plug simultaneously causes rotation of the plunger assembly and movement of the plunger assembly between the first and second positions thereof. 5. The drain clean-out assembly according to claim 2, wherein the plunger assembly comprises a piston and a threaded stem, and the threaded stem threadably extends through the clean-out plug. 6. A method of draining sewage above an obstruction in the sewage drain line of a residential or commercial building to permit removal of the obstruction, the method comprising: with the drain clean-out assembly according to claim 1 mounted to the sewage drain line above the obstruction, operating the preventing and permitting means to drain the sewage within the housing and the sewage drain line above the drain clean-out assembly through the housing and the drain port of the drain clean-out assembly;removing the clean-out plug from the clean-out port of the housing to expose the clean-out access therein without risk of the sewage within the sewage drain line rapidly draining from the clean-out access as the clean-out plug is removed; and thenremoving the obstruction from the sewage drain line by placing a rod or cable through the clean-out access of the housing and into the sewage drain line. 7. The drain clean-out assembly according to claim 1, wherein the preventing and permitting means comprises a ball valve within the housing. 8. The drain clean-out assembly according to claim 7, wherein the ball valve is a three-way ball valve. 9. The drain clean-out assembly according to claim 8, wherein the three-way ball valve comprises an axial bore selectively alignable with the mounting end and clean-out port of the housing and a radial bore that is continuously aligned with the drain port of the housing. 10. The drain clean-out assembly according to claim 9, wherein the three-way ball valve is rotatable between a first position that closes the mounting end of the housing and a second position that permits fluid flow into the housing through the mounting end thereof and out of the housing through the drain port thereof. 11. A method of draining sewage above an obstruction in an obstructed sewage drain line of a residential or commercial building to permit removal of the obstruction, the method comprising: with the drain clean-out assembly according to claim 10 mounted to the sewage drain line above the obstruction, rotating the three-way ball valve from the first position thereof to the second position thereof to drain the sewage within the sewage drain line above the drain clean-out assembly;removing the clean-out plug from the clean-out port of the housing to expose the clean-out access therein; and thengaining access to and removing the obstruction through the clean-out access of the housing and through the axial bore of the three-way ball valve. 12. The drain clean-out assembly according to claim 1, wherein the preventing and permitting means comprises a ball valve within the housing, and the clean-out plug is removably attached to the housing between the mounting end of the housing and the ball valve. 13. The drain clean-out assembly according to claim 12, wherein the ball valve is a three-way ball valve. 14. The drain clean-out assembly according to claim 13, wherein the three-way ball valve comprises an axial bore selectively alignable with the mounting end and clean-out port of the housing and a radial bore that is continuously aligned with the drain port of the housing. 15. The drain clean-out assembly according to claim 14, wherein the three-way ball valve is rotatable between a first position that permits the sewage to flow into the housing through the mounting end thereof and out of the housing through the clean-out port thereof, and a second position that permits the sewage to flow into the housing through the mounting end thereof and out of the housing through the drain port thereof. 16. A method of draining sewage above an obstruction in an obstructed sewage drain line of a residential or commercial building to permit removal of the obstruction, the method comprising: with the drain clean-out assembly according to claim 15 mounted to the sewage drain line above the obstruction, rotating the three-way ball valve from the first position thereof to the second position thereof to drain the sewage within the sewage drain line above the drain clean-out assembly;removing the clean-out plug from the clean-out port of the housing to expose the clean-out access therein; and thengaining access to and removing the obstruction through the clean-out access. 17. The drain clean-out assembly according to claim 1, wherein the drain port is defined by the housing. 18. The drain clean-out assembly according to claim 17, wherein the preventing and permitting means is within the interior of the housing. 19. The drain clean-out assembly according to claim 17, wherein the drain port is located so that the sewage within the interior of the drain clean-out assembly is completely drained by the drain port prior to removing the clean-out plug from the clean-out port of the housing. 20. The drain clean-out assembly according to claim 1, wherein the drain port is defined by the clean-out plug. 21. The drain clean-out assembly according to claim 20, wherein the preventing and permitting means is attached to the clean-out plug. 22. The drain clean-out assembly according to claim 20, wherein the drain port is located at a lower edge of the clean-out plug. 23. The drain clean-out assembly according to claim 1, wherein the preventing and permitting means further selectively prevents and permits flow of the sewage into the interior of the housing through the mounting end thereof. 24. The drain clean-out assembly according to claim 1, wherein the clean-out access has a diameter approximately equal to the diameter of the mounting end of the housing. 25. The drain clean-out assembly according to claim 1, wherein the operating means is attached to the housing or the clean-out plug. 26. The drain clean-out assembly according to claim 1, wherein the operating means is coupled to the preventing and permitting means. 27. The method according to claim 6, wherein the drain port is located so that the sewage within the interior of the drain clean-out assembly is completely drained by the drain port prior to removing the clean-out plug from the clean-out port of the housing. 28. The drain clean-out assembly according to claim 1, wherein the drain clean-out assembly is installed on the sewage drain line. 29. The drain clean-out assembly according to claim 28, wherein the drain clean-out assembly is installed on the end of the sewage drain line below a drain pipe that enters the sewage drain line from above. 30. The drain clean-out assembly according to claim 29, wherein the end of the sewage drain line is horizontal and the drain port is located at a lower side of the housing.

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Drain clean-out assembly and method of using

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Drain clean-out assembly and method of using

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