Measuring and testing – Liquid level or depth gauge – Sight glass
Patent
1987-12-07
1989-02-28
Cuchlinski, Jr., William A.
Measuring and testing
Liquid level or depth gauge
Sight glass
73334, 116276, G01F 2302
Patent
active
048074748
ABSTRACT:
A sight glass assembly comprising a housing adapted to be mounted on a wall, the housing having a bore therethrough, the housing 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 of the housing, a retainer member threadedly mounted on the housing, the retainer member having a bore therethrough disposed in alignment with the housing bore when the retainer member is threadedly munted on the housing, the retainer bore having an enlarged section providing a shoulder and the lens being disposed between the housing and the retainer shoulders, the retainer member having a member receivable within the enlarged housing bore section between the housing and the lens when the retainer member is threadedly mounted on the housing for compressing the O-ring against the housing shoulder and causing the O-ring to expand laterally and place the lens in peripheral compression, and a shoulder provided on the retainer member for restricting the travel of the compression member into the enlarged housing bore section.
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Cuchlinski Jr. William A.
Pressure Products Company, Inc.
Will Thomas B.
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