Receptacles – Closures – Secondary closure within parameter of primary closure
Patent
1993-09-10
1995-06-13
Fidei, David T.
Receptacles
Closures
Secondary closure within parameter of primary closure
220 412, 220 416, 220 426, 215 47, B65D 5118
Patent
active
054234476
ABSTRACT:
A height adjustable water-tight sump for use in hazardous waste storage systems. The sump comprises an inspection cover, an access cover, a riser section and a base. The riser section has alternately adjacent threaded sections and grip sections in appropriate areas along the riser for height adjustment of the sump in that, at a desired height, the riser section may be cut off to conform to that desired height. To form the sump the riser section is threadably engageable with the base, the access cover is threadably engageable with the riser section, and the inspection cover is threadably engageable with the access cover.
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Advanced Polymer Technology, Inc.
Fidei David T.
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