1980-12-02
1983-02-08
Henry, Jon W.
350589, 73328, G02B 500, G01F 2302, G02B 700
Patent
active
043726526
ABSTRACT:
A gage glass assembly can be mounted in a standard pipe joint flange and has a sleeve with an inturned flange at the outer end and an outwardly extending flange at the inner end. A pair of cylindrical lenses inside the sleeve are interspaced by a plastic sheet that also extends axially between the inner lens and the sleeve and outwardly over the outwardly extending flange. Both lenses and the sheet are bonded together and to the sleeve by a transparent, plastic material. A liquid level gage has a cover extending over a body having an elongated central chamber and the cover has a similarly elongated recess facing the chamber. A pair of glass lenses are stacked in the recess and a transparent plastic sheet extends between the lenses, along the side of the inner lens and outwardly over the inner side of the cover, where it serves as a gasket between the cover and the body. A plastic bonding material fills the space between the plastic sheet, the two lenses, and the cover recess.
REFERENCES:
patent: 3148543 (1964-09-01), Le Roy
patent: 3307400 (1967-03-01), Le Roy
patent: 3380303 (1968-04-01), Le Roy
patent: 3438540 (1969-04-01), Le Roy
patent: 3782809 (1974-01-01), Shropshire
patent: 3922999 (1975-12-01), Meginnis
patent: 3942881 (1976-03-01), Meginnis
patent: 3951301 (1976-04-01), Meginnis
patent: 4014214 (1977-03-01), Pontefract
patent: 4182179 (1980-01-01), Meginnis
Henry Jon W.
White Consolidated Industries, Inc.
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