Pipet gun for drawing liquid into and expelling it from a pipet

Details Pipet gun for drawing liquid into and expelling it from a pipet Pipet gun for drawing liquid into and expelling it from a pipet

1985-11-12

1986-11-25

Levy, Stewart J.

Measuring and testing

Sampler, sample handling, etc.

Capture device

B01L 302

Patent

active

046241477

ABSTRACT:
A pipet gun for drawing liquid into and expelling it from a pipet comprises a housing which includes a hand grip portion and a barrel portion with a pipet-supporting portion connected to the barrel portion, conduits in the housing adapted to connect an air pressure source and a vacuum source to the pipet-supporting portion, valves carried by the hand grip portion in operative engagement with the conduit and operable to selectively establish, and cut off, communication between the pipet-supporting portion, air pressure source, and vacuum source. The valves include a molded plastic valve body with a molded plastic back portion connected to a molded plastic front portion with a gasket positioned therebetween, and the necessity of precision drilling of long bores is eliminated.

REFERENCES:
patent: 3834240 (1974-09-01), Kenney
patent: 3963061 (1976-06-01), Kenney

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