G - Physics – 01 – F
Patent
G - Physics
01
F
73/173, 116/68
G01F 23/02 (2006.01)
Patent
CA 1289383
ABSTRACT A sight glass assembly consisting generally of a housing adapted to be mounted on a wall, the housing having a bore therethrough, the bore having an enlarged section providing a shoulder, a lens disposed in the enlarged bore section and seated on the shoulder, at least one deformable O-ring mounted on the lens and disposed between a periphery of the lens and a wall of the enlarged bore section, a retainer member threadedly mounted on the housing, the retainer member having a bore therethrough disposable in alignment with the housing bore when the retainer member is threadedly mounted on the housing, the retainer member having means receivable within the housing section when the retainer member is threadedly mounted on the housing for compressing the O-ring against the shoulder and causing the O-ring to expand laterally and place the lens in peripheral compression, and means provided on the retainer member for restricting the travel of the compression means into the enlarged bore section.
527876
Cassan Maclean
Pressure Products Company Inc.
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