Pipette tip with an internal sleeve and method for forming same

Details Pipette tip with an internal sleeve and method for forming same Pipette tip with an internal sleeve and method for forming same

2005-10-18

2005-10-18

Raevis, Robert (Department: 2856)

Measuring and testing

Moisture content or absorption characteristic of material

86

Reexamination Certificate

active

06955077

ABSTRACT:
A pipette tip member having an elongated tubular receptacle having a sidewall with a bifurcated section that comprises first, second, and third sidewall portions. The first sidewall portion comprises a base wall and the second and third sidewall portions branch therefrom. The second sidewall portion comprises an outside branch wall, and the third sidewall portion comprises an inside branch wall spaced substantially parallel with and radially inward from the second sidewall portion. The inside branch wall is flexible in the radial direction and engages a pipette tip when it is inserted into the receptacle and to form a fluid-tight seal therewith. A method of forming a pipette tip member is also disclosed.

REFERENCES:
patent: 4474071 (1984-10-01), Marteau d'Autry et al.
patent: 4647419 (1987-03-01), Helfer et al.
patent: 4672857 (1987-06-01), MacDermott
patent: 4748859 (1988-06-01), Magnussen et al.
patent: 4824641 (1989-04-01), Williams
patent: 5200151 (1993-04-01), Long
patent: 5240397 (1993-08-01), Fay et al.
patent: 6596240 (2003-07-01), Taggart et al.
patent: 2002/0092367 (2002-07-01), Bell
Definition of “bifurcate” from American Heritage Dictionary, 1982.

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