This invention relates generally to a pipette device, and more particularly to a pipette device which makes it possible to perform the operations of sucking a liquid that is, introduction of a liquid into a tipdischarging the same that is, removal of the liquid from the tip and removing a tip simply by operating a single electrical switch. There have been known pipette devices which comprise a housing graspable with an operator's single hand within which there are provided a cylinder, a plunger or piston adapted to operate in the cylinder to suck a liquid and then discharge the same, an operating rod secured to the upper end of the plunger, and a return spring for exerting upward bias force onto the operating rod, whereby the respective operations of sucking a liquid, discharging the same and removing a tip are effected by manipulation of an operating knob secured to the upper end of the operating rod by an operator's finger. With such a known pipette device, when it is desired to suck a liquid, the operating knob is lowered by a certain distance against the force of the return spring and then released so as to allow the plunger to be returned upwardly by the force of the return spring.
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UFC bad-boy Jon Jones has been criticised for his dismissive attitude to a female reporter questioning his latest drug test result. Jones reacted with disdain when Swedish journalist Izabelle Kostic challenged him over the positive test ahead of his UFC clash with Alexander Gusataffson. The light-heavyweight bout has been switched to California at short [ ] Read on the original site.
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