|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G01M-003/28 F16L-009/18 F16L-041/02 F17D-001/04|
|미국특허분류(USC)||73/040.5R ; 73/046 ; 285/013 ; 48/194 ; 137/314 ; 138/113|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 22 인용 특허 : 34|
A monitoring device for use with a coaxial pipe or double wall pipe device which provides access to the interstitial region between an inner pipe and an outer pipe which coaxially defines the interstitial region, each pipe having two terminal ends. The inner pipe has at least one terminal end extending from the outer pipe to leave a portion of the outer wall of the inner pipe exposed to thereby expose the interstitial region. A boot is provided for defining a chamber with a larger end snugly fitting the outer pipe, and a small end snugly fitting onto the...
[ What is claimed is:] [5.] A method of monitoring the integrity of a double wall pipe system comprising a plurality of double wall pipe segments, each pipe segment having an inner pipe with an outer wall, and outer pipe with an inner wall, and an interstitial space free from solid filler material disposed between said walls, to provide an alarm in the event of a leak in either pipe wall, comprising the steps of:connecting the inner pipes of each said double wall pipe segment to form a closed system for conveying a fluid using a pump to thereby create a ...