Holding device for laboratory ware

Details Holding device for laboratory ware Holding device for laboratory ware

1976-04-28

1977-04-05

Richman, Barry S.

Chemistry: physical processes

Physical processes

Crystallization

23292, 211 60R, 211 71, 211 74, 248310, 2483111, B01L 900, B01L 300

Patent

active

040159400

ABSTRACT:
A supporting device for laboratory containers, bottles, and the like which comprises a helical spring joined at its ends to form a torus-shaped body with several turns of said spring being loosely affixed to a base, thereby permitting expansion of said torus-shaped body when an object having a dimension greater than the central opening of the torus is inserted therein. Preferably said helical spring is wound to have substantially no compression and tension between turns, a natural frequency between 10 and 100 cycles per minute, and the spring wire is of a thin, rectangular cross-section with the long side directed radially.

REFERENCES:
patent: 637996 (1899-11-01), Powel
patent: 1149010 (1915-08-01), Wilson
patent: 1315087 (1919-09-01), Caire
patent: 2215411 (1940-09-01), Sebring
patent: 2415012 (1947-01-01), James
patent: 2991039 (1961-07-01), Aimes
patent: 3028702 (1962-04-01), St. Cyr
patent: 3918920 (1975-11-01), Barber
patent: 3969080 (1976-07-01), Cenlon

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