Fluid backflow management system and method of use thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E03F-007/04
F16K-007/10
E03D-011/00
E03F-005/042
출원번호
US-0864174
(2015-09-24)
등록번호
US-9725894
(2017-08-08)
발명자
/ 주소
Caux, Guylaine
Gauthier, Martin
Racine, Yves
Savaria, Patrick
출원인 / 주소
7525443 CANADA INC.
대리인 / 주소
Brouillette Legal Inc.
인용정보
피인용 횟수 :
2인용 특허 :
14
초록▼
An apparatus for continuously controlling fluid flow in a sewer conduit, comprising: a) moisture sensors detecting levels of fluid in this conduit; b) an inflatable bladder, mounted in the sewer conduit for releasably sealing in fluid tight fashion a section of this conduit; a compressed air source
An apparatus for continuously controlling fluid flow in a sewer conduit, comprising: a) moisture sensors detecting levels of fluid in this conduit; b) an inflatable bladder, mounted in the sewer conduit for releasably sealing in fluid tight fashion a section of this conduit; a compressed air source for inflating the bladder; and a control box including a CPU sensitive to the moisture sensor(s) and actuating the air compressor responsively to conduit fluid level conditions reaching beyond a preset threshold value. The performance of the apparatus is independent of the speed of fluid flow in the sewer conduit.
대표청구항▼
1. An assembly for blocking a conduit upon detecting a problem condition for a fluid, the conduit: defining an inner cavity in which the fluid flows and having a longitudinal axis, the conduit being in fluid communication with a clean-out duct transversally opening into the inner cavity of the condu
1. An assembly for blocking a conduit upon detecting a problem condition for a fluid, the conduit: defining an inner cavity in which the fluid flows and having a longitudinal axis, the conduit being in fluid communication with a clean-out duct transversally opening into the inner cavity of the conduit and having a longitudinal axis forming an angle of about 45 degrees with the axis of the conduit;the assembly comprising: an inflatable bladder configured to be inserted in a section of the inner cavity of the conduit via the clean-out duct, the inflatable bladder once inflated having a toroidal shape having a longitudinal axis aligned with the longitudinal axis of the conduit, the bladder being inflatable/deflatable between a deflated inoperative condition and an operative inflated condition in which the bladder is inflated for sealingly closing the conduit section;at least one sensor adapted to detect the problem condition of the fluid and positioned in the conduit on at least one side of the inflatable bladder, and beyond a contact area between the inflatable bladder and the conduit, the side being that related to the problem condition of the fluid; anda control panel having: a pressure system in fluid communication with the inflatable bladder to inflate the bladder to the operative inflated condition, and to deflate the bladder; anda processor unit for actuating the pressure system when the problem condition is detected by the at least one sensor, and for subsequently deflating the bladder when the problem condition is not detected. 2. The assembly according to claim 1, further comprising two of said sensor, with one of said sensors on each side of the inflatable bladder to detect two different problem conditions. 3. The assembly according to claim 1, wherein the inflatable bladder is accommodated in the clean-out duct of the conduit when in the deflated inoperative condition. 4. The assembly according to claim 3, wherein the pressurized system and processing unit are configured to be integrated to a cover of the clean out duct. 5. The assembly according to claim 1, further comprising at least a second inflatable bladder downstream of the first in the conduit, the first and second inflatable bladder both connected to the same pressure system. 6. The assembly according to claim 1, further comprising at least a second inflatable bladder in another conduit, the first and second inflatable bladder both connected to the same pressure system. 7. The assembly according to claim 1, wherein the pressure system comprises a pressure source actuated by the processing unit to create flow of pressurized fluid, at least one pressure line in fluid communication between the pressure source and the bladder to inflate the bladder, exhaust means to deflate the inflated bladder, and valves controlled by the processing unit to operate inflating/deflating cycles. 8. The assembly according to claim 7, further comprising a casing located away from the conduit for housing the pressure source and the processing unit. 9. The assembly according to claim 7, wherein the pressure system is a pneumatic system. 10. The assembly according to claim 1, wherein the pressure system comprises a cleaning line connected to a remainder of the pressure system and having an outlet end adjacent to the sensor to blow fluid on the sensor. 11. The assembly according to claim 10, wherein the cleaning line is connected to one of the pressure source and the pressure line. 12. The assembly according to claim 10, wherein the cleaning line is part of the exhaust means, whereby fluid blown on the sensor is fluid exhausted from the bladder during deflating. 13. The assembly according to claim 1, wherein one sensor is a wireless sensor. 14. The assembly according to claim 13, wherein one sensor is a piezoelectric powered sensor. 15. The assembly according to claim 1, further comprising a communication unit to enable communication with adjacent devices in nearby premises. 16. A method for blocking a conduit upon detecting a problem condition for a fluid flowing in the conduit, the conduit defining an inner cavity in which a fluid flows and having a longitudinal axis, the conduit being in fluid communication with a clean-out duct transversally opening into the inner cavity of the conduit and having a longitudinal axis forming an angle of about 45 degrees with the axis of the conduit; the method comprising the steps of: inserting an inflatable bladder in a section of the inner cavity of the conduit via the clean-out duct, the inflatable bladder once inflated having a toroidal shape having a longitudinal axis aligned with the longitudinal axis of the conduit, the bladder being inflatable/deflatable between a deflated inoperative condition and an operative inflated condition in which the bladder is inflated for sealingly closing the conduit section;detecting the problem condition of the fluid using at least one sensor positioned in the conduit on at least one side of the inflatable bladder, and beyond a contact area between the inflatable bladder and the conduit, the side being that related to the problem condition of the fluid;inflating the bladder to the operative inflated condition using a control panel having a pressure system in fluid communication with the inflatable bladder to inflate the bladder, and a processor unit for actuating the pressure system when the problem condition is detected by the at least one sensor; andsubsequently deflating the bladder when the problem condition is not detected. 17. The method of claim 16, further comprising the step of wirelessly connecting the device to the control panel. 18. The method of claim 17, further comprising the step of wirelessly connecting the device or control panel to a cloud system.
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이 특허에 인용된 특허 (14)
Cohen John H. (Houston TX) Leitko Curtis E. (Houston TX) Pittard Gerard T. (Houston TX) Clifton Terry P. (Houston TX) Rockower Gerald (Brooklyn NY), Apparatus and method for shutting off fluid flow in a pipe main.
Cohee Donald R. (Felton DE) Sandy Charles (Camden DE) Martz Pete (Camden DE) Clougherty M. James (Felton DE) Pauly Robert (Bear DE), Apparatus for blocking fluid flow through a conduit responsive to an emergency condition.
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