Liquid level controller and pilot switch

Details Liquid level controller and pilot switch Liquid level controller and pilot switch

2008-07-01

2008-07-01

Lee, Kevin L (Department: 3753)

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

C137S413000, C137S426000, C137S434000

Reexamination Certificate

active

11409751

ABSTRACT:
A liquid level controller including a pilot valve switchable between snap and throttle modes. A displacer translates changing liquid level in a tank into movement that is transferred to the pilot valve which will provide output gas to a control valve to allow or to prevent the discharge of fluid from the tank. The pilot valve has a throttle supply inlet and a snap supply inlet and a single output passage. When the pilot valve is in the throttle mode, the snap supply inlet is a vent passage and when the pilot valve is in the snap mode, the throttle supply gas inlet is a vent passage.

REFERENCES:
patent: 3052254 (1962-09-01), Parks
patent: 4543973 (1985-10-01), Ho
patent: 4974625 (1990-12-01), Paullus et al.
patent: 5992448 (1999-11-01), Anderson et al.
patent: 6240955 (2001-06-01), Anderson et al.

Affiliated with

Also associated with

Rating

Liquid level controller and pilot switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid level controller and pilot switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid level controller and pilot switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3959237