Container lid

Details Container lid Container lid

1991-01-31

1991-11-12

Marcus, Stephen

Receptacles

Closures

Closure members having alignable openings

220256, B65D 5118

Patent

active

050640860

ABSTRACT:
A container lid, especially useful in the pharmaceutical testing industry, having a pair of overlapping lid elements which are rotatable with respect to one another. The lid elements have matching apertures which allow the insertion of testing apparatus into the container covered by the lid without the necessity of removing the lid. The rotatable elements may be positioned tightly around the testing apparatus to reduce the possibility of evaporative loss and of contamination of the testing medium.

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patent: 4832219 (1989-05-01), Nycz
patent: 4940157 (1990-07-01), Inagaki

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