Expansible chamber devices – With inspection window in expansible chamber wall portion – With lock
Reexamination Certificate
2008-01-08
2008-01-08
Leslie, Michael (Department: 3745)
Expansible chamber devices
With inspection window in expansible chamber wall portion
With lock
C348S082000
Reexamination Certificate
active
07316176
ABSTRACT:
A remote monitor system for a longitudinally positionable control bar having position indicating indicia thereon including a housing receiving the control bar therein and having an aperture in a sidewall communicating between the control bar and an exterior housing surface, an explosion proof enclosure mounted exteriorly of the housing and having a transparent window in alignment with the aperture, a video camera positioned within the explosion proof enclosure having a lens with a visual path through the window and in alignment with the housing aperture, a radio transmitter within the explosion proof enclosure connected to the camera and configured to transmit a signal of video images provided by the camera; and a battery power source within the explosion proof enclosure providing energy to the camera and transmitter for providing remotely receivable control bar position indicating images.
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Dunn Jerry Lee
Rice Michael Lynn
Gable & Gotwals
Leslie Michael
TDW Delaware Inc.
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