Pipes and tubular conduits – Combined – With indicating means
Reexamination Certificate
2008-08-04
2009-12-15
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
Combined
With indicating means
C138S036000, C138S127000, C138S138000, C116S206000, C073S040000, C073S04050R
Reexamination Certificate
active
07631666
ABSTRACT:
A reinforced flexible hose that has at least one layer of stainless steel threads braided about the outer surface of the inner core and a transparent flexible polymeric covering located over the braided stainless steel threads, thereby protecting them from abrasion and corrosion. The covering is not in intimate contact with the circumference of each thread thereby trapping pockets of air between the covering and the threads. A moisture sensitive compound is dispersed through the stainless steel threads under the transparent covering. When the compound becomes wet, it changes from a first color to a second color indicating that the hose has failed.
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WO 94/02772 Doan T. Leak Detection for Liquid Hoses Feb. 3, 1994.
Ng Kwan Yuen Abraham
Ng Sarah Seen Yui Chan
Belasco David A.
Belasco Jacobs & Townsley LLP
Brinson Patrick F
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