Beaker cover

Details Beaker cover Beaker cover

1995-04-07

1996-03-26

Warden, Jill

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422102, B01L 300

Patent

active

055018394

ABSTRACT:
A cover for a laboratory beaker is formed from a top structure having a depending, annular skirt that forms, with the frustoconically shaped top structure, a peripheral shoulder. The skirt is dimensioned to be received by the opening of beaker to hold the cover in place, and to close any poring spout that may be formed in the periphery of the beaker. The shoulder is dimensioned to rest on the periphery of the beaker. Formed in top structure is an aperture that allows ingress to the beaker when the cover is in place. A stopper is provided to be removably received by the aperture to close the interior of the beaker. The a bottom portion of the stopper is structured to depend from the top structure, toward the volume of the beaker covered by the cover to provide a formation for reflux activity.

REFERENCES:
patent: 612750 (1898-10-01), McDougall
patent: 1920385 (1930-10-01), Hamilton
patent: 2694033 (1953-05-01), Fletcher
patent: 3286867 (1965-10-01), Mumford
patent: 4586622 (1986-05-01), Walldorf
patent: 4726478 (1988-02-01), Zimmermann
patent: 4871077 (1989-10-01), Ogden et al.
patent: 5341969 (1994-08-01), Accardo et al.
patent: 5346672 (1994-09-01), Stapleton et al.
Supercool, Inc., Product Brochure.

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