Method of and device for forming openings in a gelatinous substa

Details Method of and device for forming openings in a gelatinous substa Method of and device for forming openings in a gelatinous substa

1981-01-13

1982-10-19

Meister, James M.

Cutting

Processes

With subsequent handling

83 55, 83100, 83167, 83562, 83569, B26F 100

Patent

active

043544061

ABSTRACT:
A method and device for forming openings in a gelatinous substance in a Petri dish in which the Petri dish (6) is lifted towards punch tools (19) until the tools have penetrated the gelatinous substance and are on or near the base of the dish. The dish is then moved with a low amplitude motion perpendicular to the penetration direction, i.e. horizontally to loosen a pellet of the gelatinous substance within each punch tool from the base (6a) of the dish, and finally the dish is lowered to withdraw the punch tools (19) from the dish while suction applied to a compartment (4) communicating with the interior of each tool extracts the punched pellet and clears the tool for a subsequent penetration in the same or a different dish (6).

REFERENCES:
patent: 2463455 (1949-03-01), Dann
patent: 3600772 (1971-08-01), Farris
patent: 3683736 (1972-08-01), Loose
patent: 3863353 (1975-02-01), Hurn

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