Sampler and metering pump

Details Sampler and metering pump Sampler and metering pump

1987-03-23

1988-05-17

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

222275, 7386382, G01N 114

Patent

active

047442557

ABSTRACT:
A sampler for communicating with the interior of a vessel containing a liquid extracts a liquid sample of predetermined volume from the vessel and conveys the same to a point of collection. The sampler includes a body having a bore, the forward end of which is in communication with the interior of the vessel, along with front and rear plungers reciprocable within the bore under positive independent control. The plungers are movable away from and toward each other to establish and collapse a sample chamber therebetween. To obtain a liquid sample, the plungers are removed forwardly to project the front plunger out of the bore and place the sample chamber into communication with the vessel interior, whereupon the sample chamber is established for being filled with liquid. The plungers are then moved rearwardly into the bore with the liquid filled sample chamber therebetween, until the chamber is exposed to a port in the bore, at which point it is collapsed to force the liquid out of the chamber and through the port under positive pressure. The sampler may also be used as a metering pump, with liquid being introduced into the sample chamber through the port and then carried through the bore by the plungers to and into the vessel.

REFERENCES:
patent: 3218868 (1965-11-01), Gill
patent: 3681996 (1972-08-01), Crist
patent: 4269064 (1981-05-01), Johnson et al.
patent: 4475410 (1984-10-01), Jaeger
patent: 4479393 (1984-10-01), Shores

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1874853