Dual stage pump and filter system with control valve between pum

Details Dual stage pump and filter system with control valve between pum Dual stage pump and filter system with control valve between pum

1996-01-25

1998-06-09

Drodge, Joseph W.

Liquid purification or separation

Filter

With pump, gas pressure, or suction source

22218906, 222255, 417313, 417426, 210424, B01D 3500

Patent

active

057627959

ABSTRACT:
An improved dual-stage pump system is provided for the accurate pumping and filtering of viscous fluids. Two hydraulically activated pumps are provided in series with a filter and reservoir disposed in-line between the two pumps. The reservoir acts as a source bottle for the second pump and allows the first pump to pump the viscous fluid through the filter at a rate independent of the dispensing rate of the second pump. By operating the first pump at a rate independent of the second pump, back pressure at the filter is avoided. Each hydraulically activated diaphragm pump is equipped with an improved diaphragm that is pre-formed to the geometries of the process fluid cavity thereby eliminating any inaccuracies in the operation of the pumps due to expansion of retraction of the diaphragm during pump operation.

REFERENCES:
patent: 3777888 (1973-12-01), Zellbeck et al.
patent: 4618425 (1986-10-01), Yates
patent: 4690621 (1987-09-01), Swain
patent: 4915597 (1990-04-01), Moore
patent: 4950134 (1990-08-01), Bailey et al.
patent: 5167837 (1992-12-01), Snodgrass et al.
patent: 5262068 (1993-11-01), Bowers et al.
patent: 5490765 (1996-02-01), Bailey et al.
patent: 5516429 (1996-05-01), Snodgrass et al.
Control of the Surface-Water Purification Plant for the Amsterdam Water-Supply Authority, Philips Technical Review, vol. 36, 1976, No. 10, pp. 273-283, M. Klinck.

Affiliated with

Also associated with

Rating

Dual stage pump and filter system with control valve between pum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual stage pump and filter system with control valve between pum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual stage pump and filter system with control valve between pum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2195051