Pipe joints or couplings – With indicator – alarm or inspection means
Patent
1999-05-25
2000-12-19
Arola, Dave W.
Pipe joints or couplings
With indicator, alarm or inspection means
285119, F16L 3500
Patent
active
061618772
ABSTRACT:
A conduit interlock assembly for being clamped to portions of a pair of conduits which portions are adjacent an end-to-end interconnection between the two conduits and which conduit interlock assembly is for surrounding a conduit fastener or fasteners fastening the conduits together in the end-to-end connection. The conduit interlock assembly includes a normally open switch for being closed upon the conduit interlock assembly being clamped to the conduits to provide an indication that the conduits are in the end-to-end interconnection and which switch is opened upon the conduit interlock assembly being unclamped from the conduits to provide an indication that the conduits possibly are not in the end-to-end interconnection.
REFERENCES:
patent: 3595228 (1971-07-01), Simon et al.
patent: 3826461 (1974-07-01), Summerfield et al.
patent: 3845657 (1974-11-01), Hall et al.
patent: 4621200 (1986-11-01), Lovrenich
Le Paul
Meehan Larry
Nguyen Long
Pham Phong
Applied Materials Inc.
Arola Dave W.
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