Vacuum filter flask

- Corning Incorporated
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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.

Referenced Cited
U.S. Patent Documents
D270947 October 11, 1983 Mehra et al.
3295686 January 1967 Krueger
4357240 November 2, 1982 Mehra et al.
4614585 September 30, 1986 Mehra et al.
4678576 July 7, 1987 Leoncavallo
4689147 August 25, 1987 Leoncavallo et al.
4783318 November 8, 1988 Lapakko
5141639 August 25, 1992 Kraus et al.
Other references
  • The Fisher Catalog '91/'92, Filter Flasks, pp. 758-759.
Patent History
Patent number: D343682
Type: Grant
Filed: Dec 2, 1991
Date of Patent: Jan 25, 1994
Assignee: Corning Incorporated (Corning, NY)
Inventors: Henry L. Cattaoris (Otego, NY), Michael A. Dyda (Oneonta, NY), Dennis M. O'Connell (Corning, NY), Frederick B. Takatori (Canyon Country, CA)
Primary Examiner: Stella Reid
Attorneys: Brian R. Leslie, Alfred L. Michaelsen
Application Number: 7/801,088
Classifications
Current U.S. Class: Filter (37) (D24/162)