专利名称：SIGHT GLASS ASSEMBLY发明人：MEGINNIS C,US申请号：US3746431D申请日：19710429公开号：US3746431A公开日：19730717
摘要：A sight glass assembly generally including a housing structure having anopening therethrough, the opening having an enlarged section providing a shoulder, aface plate having an opening registered with the opening in the housing structure,detachably mounted on the housing structure in opposed relation to the shoulder, a lensdisposed tin the enlarged section of the opening in the housing structure and interposedbetween the shoulder and the face plate, sealing means disposed in the enlarged sectionof the opening in the housing structure, between the lens and the housing structure, andmeans engageable with the sealing means for compressing the sealing means against theface plate to expand the sealing means laterally thereby providing a positive sealbetween the lens and the housing structure.
申请人：MEGINNIS C,US
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