Integral flow restrictor valve

Details Integral flow restrictor valve Integral flow restrictor valve

2011-01-25

2011-01-25

Greene, Jason M (Department: 1775)

Gas separation: apparatus

With sampling means

C138S045000, C251S121000, C251S127000, C073S864910, C073S864830, C073S863000

Reexamination Certificate

active

07875109

ABSTRACT:
A gas sample cylinder outlet valve having a flow restricting element associated therewith. The preferred embodiment of the flow restricting element comprises an orifice constructed of a low thermal conduction material such as a plastic. Preferably the outlet valve Cvcharacteristic is large relative to the orifice Cvcharacteristic resulting in essentially all of the gas pressure drop taking place across said orifice and therefore essentially all of the J-T effect cooling taking place at said orifice. Due to the low thermal conductivity construction of said orifice an insignificant amount of cooling takes place upstream of the valve mechanism. Test have shown that the integral orifice outlet valve having a large Cvcharacteristic is more efficient then the typical sample cylinder outlet valve and extension tube and/or flow restrictor combination.

REFERENCES:
patent: 5147426 (1992-09-01), Koike et al.
patent: 5237881 (1993-08-01), Ross
patent: 5627328 (1997-05-01), Sheridan et al.
patent: 5741960 (1998-04-01), Payne et al.
patent: 6241950 (2001-06-01), Veelenturf et al.
patent: 6418802 (2002-07-01), Wood
patent: 6539968 (2003-04-01), White et al.
patent: 7232477 (2007-06-01), Rodgers
patent: 7257987 (2007-08-01), O'Brien et al.
patent: 7431045 (2008-10-01), Mudd et al.
patent: 2003/0079523 (2003-05-01), Lechner-Fish
patent: 2004/0094203 (2004-05-01), Nimberger
patent: 2005/0045239 (2005-03-01), Krieger et al.
patent: 2005/0075711 (2005-04-01), Neary
patent: 2008/0041471 (2008-02-01), Paterson et al.

Affiliated with

Also associated with

Rating

Integral flow restrictor valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2624556