Gas separation: apparatus – Solid sorbent apparatus – With indicating means
Reexamination Certificate
2007-10-23
2007-10-23
Lawrence, Frank M. (Department: 1724)
Gas separation: apparatus
Solid sorbent apparatus
With indicating means
C055S518000, C055SDIG017, C073S029040
Reexamination Certificate
active
10931463
ABSTRACT:
A low-profile dryness indicator for point-of-use operation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The apparatus includes a vessel having a first end, a second end, and a central portion formed by a light transmissive wall that defines a containment chamber containing a dryness-indicating material, such as a color-changing desiccant or moisture sensitive paper. A rigid protective housing is disposed around the vessel wall and has one or more view ports for viewing the dryness-indicating desiccant in the containment chamber. The protective housing is closed by first and second end cap fittings that are each configured for connection to a compressed air/gas line, or to an air tool, and include a passage for transferring air or gas to or from an adjacent one of the plenum-defining cavities.
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Arno Michael J.
Hoerner Allan A.
Arno Michael J.
Duft Walter W.
Lawrence Frank M.
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