Microprocessor-controlled back-pressure system for small volume

Details Microprocessor-controlled back-pressure system for small volume Microprocessor-controlled back-pressure system for small volume

1983-02-17

1987-01-20

Lall, Parshotam S.

Boots, shoes, and leggings

364558, 364497, 137487, 1374875, G05B 1100

Patent

active

046384448

ABSTRACT:
A system for maintaining back-pressure in chemical laboratory testing apparatus includes a modified flow control valve governed by a special control system which includes an input/output controller. That controller includes a microprocessor and memory into which a program developed specifically for the modified valve has been placed. A pre-pressure valve is also used upstream of the instrument in which the pressure is to be maintained for effecting quicker control of the pressure. The input/output controller, in conjunction with the servo-amplifier, integrates out the error between the desired set-point pressure and actual pressure thereby enabling maintenance of pressure within one pound.

REFERENCES:
patent: 3509729 (1970-05-01), Lupfer
patent: 4059128 (1977-11-01), Heske et al.
patent: 4277832 (1981-07-01), Wong
patent: 4303984 (1981-12-01), Houvig
patent: 4336590 (1982-06-01), Jacq et al.
patent: 4373549 (1983-02-01), Nalepa et al.
patent: 4384925 (1983-05-01), Stetter et al.
patent: 4417312 (1983-11-01), Cronin et al.

Affiliated with

Also associated with

Rating

Microprocessor-controlled back-pressure system for small volume does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microprocessor-controlled back-pressure system for small volume , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprocessor-controlled back-pressure system for small volume will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2139166