Test tube holder with lock down clamp

Details Test tube holder with lock down clamp Test tube holder with lock down clamp

1995-03-06

1996-12-03

Gibson, Jr., Robert W.

Supports: racks

Special article

Receptacle support

211 89, 211 75, 422104, 206443, A47F 700

Patent

active

055799280

ABSTRACT:
A test tube holder for holding a test tube having an upper lip, includes a holder ring having an opening therein through which the test tube can be inserted; and a lock down clamp secured to the holder and including a lock down member movable over the holder and over the upper lip of the test tube, a moving assembly connected between the lock down member and the holder for moving the lock down member between a locking position in blocking relation to movement of the test tube out of the holder, and a release position out of the blocking relation, the moving assembly including a lever arm pivotally connected to the holder, the lock down member being fixed to an upper end of the lever arm, a pivoting assembly connected with the holder and to which the lever arm is pivotally connected, and a locking assembly connected with the moving assembly for releasably maintaining the lock down member in the locking position, the locking assembly including a ridge roll member secured to the lever arm, and a ridge on the holder and over which the ridge roll member rides to releasably maintain the lock down member in the locking position.

REFERENCES:
patent: 3390783 (1968-07-01), Quackenbush, Jr.
patent: 3650381 (1972-03-01), Weindling
patent: 3744665 (1973-07-01), Spoto
patent: 4585119 (1986-04-01), Boyington
patent: 4787523 (1988-11-01), Kalous
patent: 5080232 (1992-01-01), Leoncavallo et al.
patent: 5137693 (1992-08-01), Mawhirt
patent: 5148919 (1992-09-01), Rubin
patent: 5322668 (1994-07-01), Tomasso
patent: 5378433 (1995-01-01), Duckett et al.

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