Automatic chemistry analyzer with sample cup stopper...

G - Physics – 01 – N

Patent

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Details

G01N 35/10 (2006.01) G01N 1/00 (2006.01) G01N 35/02 (2006.01)

Patent

CA 2271812

The invention provides an apparatus for piercing the cap of a container. The apparatus includes a blade support arm slidably attached to one or mare vertical posts, a blade attached vertically below the blade support arm, and a cap retainer arm slidably attached to the vertical post such that the cap retainer arm is capable of travel along the posts between an upper position wherein the cap contacting surface is located above the elevation of the container cap and a lower position wherein the cap contacting surface is located at the elevation of the container cap. The cap retainer arm has an opening through which the blade can pass. A biasing member biases the cap retainer arm towards its lower position. The cap retainer arm is positioned below the blade but above the blade support arm contact surface. Thus, when the blade support arm slides upwardly, the blade support arm contacts the cap retainer arm and pushes the cap retainer arm upwardly from its lower position to its upper position.

L'invention concerne un appareil destiné à percer le bouchon d'un récipient. L'appareil comprend un bras prote-lame fixé de manière à coulisser le long d'un ou plusieurs pieds verticaux, une lame fixée verticalement au-dessous du bras porte-lame et un bras de retenue du bouchon fixé coulissant au pied vertical pour que le bras de retenue du bouchon puisse coulisser le long des pieds entre une position haute dans laquelle la surface en contact avec le bouchon se trouve au-dessus du bouchon du récipient et une position basse dans laquelle la surface en contact avec le bouchon se trouve au niveau du bouchon du récipient. Le bras de retenue du bouchon présente une ouverture par laquelle la lame peut passer. Un élément de sollicitation pousse le bras de retenue du bouchon vers sa position basse. Ledit bras est placé au-dessous de la lame mais au-dessus de la surface de contact du bras porte-lame. Ainsi, lorsque le bras porte-lame coulisse vers le haut, il vient au contact du bras de retenue du bouchon et le pousse vers le haut, le faisant alors passer de sa position basse à sa position haute.

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