Self-contained service tool for adding fluorescent leak detectio

Details Self-contained service tool for adding fluorescent leak detectio Self-contained service tool for adding fluorescent leak detectio

1998-10-28

2000-05-02

Kashnikow, Andres

Dispensing

Inspection devices

Sight openings

222309, 222390, B67D 538, B67D 542, B65D 8854

Patent

active

060561629

ABSTRACT:
A dispensing device is provided for introducing a fluorescent leak detection dye into an operating system containing a pressurized fluid. An embodiment of the dispensing device of the invention comprises a hollow capsule for containing dye having an interior wall and a first and a second end, with the first end adapted to engage the operating system. A plunger having a geometry corresponding to the capsule's interior wall forms a seal against the wall. A rod, having threads of a pre-selected pitch and at least one channel running longitudinally on the rod, is rotatably and axially moveable within the capsule. An end cap is adapted to receive the second end of the capsule with the rod positioned through the end cap. The dispensing device has means located in the end cap to provide controlled engagement of the rod, interposed with the threads of the rod. An indicator adapted to engage the channel of the rod is located in the end cap. A knob is attached to the rod so that rotation of the knob directs the movement of the rod through the capsule and an audible and tactile response is generated as the indicator engages the channel.

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