Supports: racks – Special article – Receptacle support
Patent
1990-06-14
1991-08-06
Gibson, Jr., Robert W.
Supports: racks
Special article
Receptacle support
211 601, A47F 700
Patent
active
050369890
ABSTRACT:
A test tube support system simultaneously holds a plurality of test tubes of different sizes. In one embodiment, the test tube support system includes a plurality of rectangular box-shaped units, each having four faces. The faces are injection molded plastic plates, each having a depth of between 0.25 and 0.50 inches with a plurality of tapered holes therethrough. More generally, the plates have sufficient depth to prevent tipping of test-tubes stored vertically therein. Also, the holes in each plate are of differing diameter than the other plates of the unit. A support or carrier tray holds a plurality of these units. Each unit may be differently oriented so that test tubes of various sizes may be stored in the test tube support system. In another embodiment, the test tube support system has a multiplicity of rectangular, plastic, injection molded plates, similar to the plates in the rectangular box-shaped units. A carrier tray is designed to receive and retain several plates and to provide empty space below the holes in the plates. The tray is designed to allow individual ones of the plates to be removed and replaced with other ones of the plates so that test tubes of various sizes may be stored in the test tube support system.
REFERENCES:
patent: 2189989 (1940-02-01), Lichtman
patent: 3233804 (1966-02-01), Dahm
patent: 3379315 (1968-04-01), Broadwin
patent: 3674198 (1972-07-01), Eberle
patent: 3778232 (1973-12-01), McMorrow
patent: 4068798 (1978-01-01), Rohde
patent: 4938369 (1990-07-01), Cavilli
Sargent-Welch Catalog, "Supports", pp. 1020-1023, 1971.
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