초록 ▼

An improved peristaltic pump includes a pivotably mounted pressure plate which, together with the pump roller elements, defines the pump chamber. The pivotal mounting of the pressure plate facilitates accessibility to the pump chamber in order to simplify the pump tube loading and unloading procedur

An improved peristaltic pump includes a pivotably mounted pressure plate which, together with the pump roller elements, defines the pump chamber. The pivotal mounting of the pressure plate facilitates accessibility to the pump chamber in order to simplify the pump tube loading and unloading procedures. The mounting system for the pressure plate includes a mechanically-advantaged four-bar linkage arrangement which automatically retains the pressure plate in either its fully open or fully closed position as a result of an over-center type locking construction. The pump also includes a mechanism for adjusting the volume flow rate characteristic of a pump tube. This is particularly adaptable for a dual-tube system wherein a predetermined volume flow rate ratio is to be achieved.

대표청구항 ▼

A peristaltic pump comprising: a pump base; at least one pump tube through which a fluid is to be pumped; pump roller means rotatably mounted upon said pump base and operatively engaged with said at least one pump tube for pumping said fluid through said at least one pump tube; pressure plate means

A peristaltic pump comprising: a pump base; at least one pump tube through which a fluid is to be pumped; pump roller means rotatably mounted upon said pump base and operatively engaged with said at least one pump tube for pumping said fluid through said at least one pump tube; pressure plate means for defining a pumping chamber with said pump roller means, said pressure plate means being pivotably mounted upon said pump base for movement between a closed position whereby said pressure plate means operatively cooperates with said pump roller means for pumping said fluid through said at least one pump tube, and an open position whereby said pressure plate means is operatively disengaged from said pump roller means so as to render said pumping chamber accessible and thereby facilitate the loading and unloading of said at least one pump tube into and out of said pumping chamber; handle means permanently mounted in a pivotable mode upon said pump base for actuating said pressure plate means to either one of said open or closed positions; and a four-bar linkage system interconnecting said handle means and said pressure plate means.