Vacuum filter flask

Description

FIG. 1 is a top view of the disclosed vacuum filter flask;

FIG. 2 is a front view of the disclosed vacuum filter flask;

FIG. 3 is a side view of the disclosed vacuum filter flask;

FIG. 4 is an opposite side view of the disclosed vacuum filter flask, the back of the disclosed vacuum filter flask is a mirror image of FIG. 2;

FIG. 5 is a bottom view of the disclosed vacuum filter flask;

FIG. 6 is a broken away cross-sectional view of the lower portion of the disclosed vacuum filter flask;

FIG. 7 is a top view of the disclosed vacuum filter flask having the cover and filter element removed; and,

FIG. 8 is a broken away cross-sectional view of the middle portion of the disclosed vacuum filter flask.

Claims

The ornamental design for a vacuum filter flask, as shown and described.

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Inventors:	Cattaoris; Henry L. (Otego, NY), Dyda; Michael A. (Oneonta, NY), O'Connell; Dennis M. (Corning, NY), Takatori; Frederick B. (Canyon Country, CA)
Assignee:	Corning Incorporated (Corning, NY)
Appl. No.:	07/801,088
Filed:	December 2, 1991

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Current U.S. Class:	D24/162
Field of Search:	;210/455,446,445,477,472-474,406,232,321.75,321.84,433.2 ;D24/162 ;D23/4

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References Cited [Referenced By]

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U.S. Patent Documents

D270947	October 1983	Mehra et al.
3295686	January 1967	Krueger
4357240	November 1982	Mehra et al.
4614585	September 1986	Mehra et al.
4678576	July 1987	Leoncavallo
4689147	August 1987	Leoncavallo et al.
4783318	November 1988	Lapakko
5141639	August 1992	Kraus et al.

Other References

The Fisher Catalog '91/'92, Filter Flasks, pp. 758-759..

Primary Examiner: Reid; Stella
Attorney, Agent or Firm: Leslie; Brian R. Michaelsen; Alfred L.