Title: Disc dispenser with removable magazines

Abstract: A number of discs are simultaneously dispensed into a culture dish from a dispenser having an array of self-contained dispensers locked in apertured sockets on a base frame. The individual dispensers are simultaneously operated by an actuating plate which engages actuating pins on each of them. The height of the dispenser above the culture dish is adjustable by cam and follower engagement of the base plate within a height-adjusting ring. Indicia and yieldable detents are provided for indexing the height of the base plate. The individual dispensers each include a chute-incorporating body, cover, slide plate, spring and tubular cartridge. The open tops of the chutes provide visual confirmation that a disc has been discharged from each of the dispensers. Weights and spring clips in the cartridges push the discs successively into firm contact with the dispensing slide plates for dependably delivering them into the dispenser chutes.

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Inventors: Curtiss, Alan C. (Old Lyme, CT, US)

Application Number: 437700
Filing Date: 1974-01-29
Publication_date: 1976-01-27
Assignee: Pfizer Inc. (New York, NY)
Primary Class(es): 221/93 221/198
Other Classes:
US Patent Ref:

2132229	Oct, 1938	Breitenstein	133/4.
2445026	Jul, 1948	Frank	221/279.
2491573	Dec, 1949	McPherson	133/5.
2532976	Dec, 1950	Weirich	133/4.
2696324	Dec, 1954	Jones	221/198.
2865156	Dec, 1958	Wolfson	221/93.
3300087	Jan, 1967	Kuypers	221/93.
3394846	Jul, 1968	Carski	221/93.

Other Refs: 687,149

May, 1964	CA

Primary Examiner: Hoffman, Drayton E.
Assistant Examiner: Bartuska, Francis J.
Attorney: Connolly & Hutz