Adjustable valve for pipette gun

Details Adjustable valve for pipette gun Adjustable valve for pipette gun

1992-04-09

1994-03-15

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

7386402, 7386413, 1375121, 1375155, 141 21, 141267, 422100, B01L 302, B65B 318

Patent

active

052944050

ABSTRACT:
A valve for use in a pipette gun for selectively providing different ranges of flow rates through a pipette cooperating with the pipette gun. The valve has a predetermined number of discrete settings, each of which provides a range of fluid flow rates between zero and a different maximum flow rate. The operator controls the flow rate by depressing the gun trigger a selected distance. To change the flow rate setting, the operator simply rotates the gun trigger to a desired setting. The present valve also eliminates the "piston effect" of prior art valve elements by isolating the pipette chamber while the valve element operably slides in and out of engagement with a port thereby connecting the pipette with a fluid source either under pressure or at a vacuum.

REFERENCES:
patent: 3093155 (1963-06-01), Dawes
patent: 3267736 (1966-08-01), Boettger
patent: 3411525 (1968-11-01), Auger
patent: 3724504 (1973-04-01), Matsui et al.
patent: 3963061 (1976-06-01), Kenney
patent: 4194534 (1980-03-01), Lawrence et al.
patent: 4364407 (1982-12-01), Hilliard
patent: 4543980 (1985-10-01), van der Sanden
patent: 4624147 (1986-11-01), Kenney
patent: 4795336 (1989-01-01), Shannon et al.
patent: 5105851 (1992-04-01), Fogelman

Affiliated with

Also associated with

Rating

Adjustable valve for pipette gun does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable valve for pipette gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable valve for pipette gun will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1534489