Rubber stopper remover

Details Rubber stopper remover Rubber stopper remover

1993-03-08

1994-05-24

Meislin, D. S.

Tools

Receptacle closure remover

Levering or prying type

81 309, 81 327, B67B 716

Patent

active

053138589

ABSTRACT:
A device for removing a rubber stopper from a test tube is mountable to an upright wall, has a generally horizontal splash guard, and a lower plate spaced parallel to and below the splash guard. A slot in the lower plate has spaced-apart opposing edges that converge towards each other from the plate outer edge to a narrowed portion, the opposing edges shaped to make engagement between the bottom of the stopper flange and the top edge of the test tube to wedge therebetween and to grasp the stopper in the slot narrowed portion to hold the stopper as the test tube is manipulated downwardly and pulled from the stopper. The opposing edges extend inwardly to adjoin an opening having a diameter significantly larger than that of the stopper flange.

REFERENCES:
patent: 2338753 (1944-01-01), Flessner
patent: 2510459 (1950-06-01), Bloomfield et al.
patent: 2516436 (1950-07-01), Whiteley
patent: 3048068 (1962-08-01), Griffiths
patent: 3583263 (1971-06-01), Herigstad
patent: 4073205 (1978-02-01), Silliman
patent: 4509784 (1985-04-01), Vollers
patent: 4846024 (1989-07-01), Bryant et al.

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