Liquid end assembly for a handheld multichannel pipette with...

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Miscellaneous laboratory apparatus and elements – per se

Reexamination Certificate

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C422S105000, C073S864160

Reexamination Certificate

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07947234

ABSTRACT:
A handheld multichannel pipette includes multiple fluid-handling nozzles and a rotary adjustment mechanism for adjusting the width of a pattern of nozzles while maintaining equal spacing between pairs of nozzles. Embodiments of the adjustable-spacing multichannel pipette include an adjustable stop mechanism.

REFERENCES:
patent: 3855868 (1974-12-01), Suovaniemi
patent: 4779467 (1988-10-01), Rainin et al.
patent: 4830832 (1989-05-01), Arpagaus
patent: 5057281 (1991-10-01), Totti
patent: 5061449 (1991-10-01), Torti
patent: 6235244 (2001-05-01), Allen et al.
patent: 2007/0092410 (2007-04-01), Ricker

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