Pump, pump for liquid chromatography, and liquid...

Details Pump, pump for liquid chromatography, and liquid... Pump, pump for liquid chromatography, and liquid...

2007-03-13

2007-03-13

Therkorn, Ernest G. (Department: 1723)

Liquid purification or separation

With means to add treating material

Chromatography

C210S101000, C210S656000, C417S044200, C417S245000, C417S254000, C417S265000, C417S426000

Reexamination Certificate

active

10902039

ABSTRACT:
The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup.In a pump for liquid chromatography including a cylinder and a plunger that reciprocates in the cylinder to suck and discharge fluid, the pump further includes a large-flow-rate pump that feeds liquid by the plunger, a small-flow-rate pump that feeds the liquid by the plunger, motion conversion means that converts the rotational motion of a motor to a reciprocating motion, an actuator that directly drives the plunger, and a drive part that drives the actuator, and selectively switches means for driving the plunger.

REFERENCES:
patent: 4958610 (1990-09-01), Yamamoto et al.
patent: 5637208 (1997-06-01), Dourdeville
patent: 5897781 (1999-04-01), Dourdeville
patent: 6099724 (2000-08-01), Dourdeville
patent: 6129840 (2000-10-01), Kitaoka
patent: 6610201 (2003-08-01), Dourdeville
patent: 6923916 (2005-08-01), Hiraku et al.
patent: 7063513 (2006-06-01), Hiraku et al.
patent: 7063785 (2006-06-01), Hiraku et al.
patent: 2002/0017484 (2002-02-01), Dourdeville
patent: 2002/0155010 (2002-10-01), Karp et al.
patent: 2003/0062026 (2003-04-01), Boecking
patent: 2003/0106533 (2003-06-01), Crofts et al.
patent: 2004/0164013 (2004-08-01), Takao et al.
patent: 2005/0095145 (2005-05-01), Hiraku et al.
patent: 63-36668 (1988-03-01), None
patent: 63-075375 (1988-05-01), None

Affiliated with

Also associated with

Rating

Pump, pump for liquid chromatography, and liquid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pump, pump for liquid chromatography, and liquid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump, pump for liquid chromatography, and liquid... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3805388