Armored tubular sight gauge with integral valves and...

Details Armored tubular sight gauge with integral valves and... Armored tubular sight gauge with integral valves and...

2005-02-22

2005-02-22

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Sight glass

C073S325000, C073S326000, C073S327000, C073S328000, C073S331000, C073S332000, C116S227000, C116S276000

Reexamination Certificate

active

06857315

ABSTRACT:
An armored sight gauge assembly of the type having a sight tube that is placed between first and second spaced apart fittings to show a liquid level comprising an elongated main body positioned between and permanently connected to the first and second fittings. The main body incorporates a flanged U-shaped frame member to which there is removably affixed a transparent sight tube shield. A sight tube assembly substantially surrounded by the flanged U-shaped frame member on three sides and is insertably captured by the first and second fittings. A valve assembly and ball check shutoff is incorporated within the internal portion of each of the first and second fittings as is a misalignment union which is removably attached to each fitting.

REFERENCES:
patent: 1175834 (1916-03-01), Stephens
patent: 1204728 (1916-11-01), Arena
patent: 1263777 (1918-04-01), Langton et al.
patent: 1304980 (1919-05-01), Hirshstein
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patent: 5323653 (1994-06-01), Gruett
patent: 5323654 (1994-06-01), Newman
patent: 5442959 (1995-08-01), Mills
patent: 5648607 (1997-07-01), Wolf
patent: 6234018 (2001-05-01), Kelada

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