Fluid handling – Diverse fluid containing pressure systems – Gas pressure storage over or displacement of liquid
Patent
1992-01-14
1994-05-31
Hepperle, Stephen M.
Fluid handling
Diverse fluid containing pressure systems
Gas pressure storage over or displacement of liquid
137212, 137606, B67D 554
Patent
active
053160347
ABSTRACT:
A valve block assembly with internal delivery channels and a common outlet channel is provided. Access of reactants to the delivery channels is controlled by diaphragm valves, preferably equipped with relief grooves to accommodate deformation of the diaphragm. Reservoirs feeding the delivery channels have an inert atmosphere controlled by pressurizing and venting channels in the valve block. Exposure of plastic tubing to oxygen is kept to a minimum. The assembly is particularly adapted for use in a DNA or protein sequencer to supply reactants without cross-contamination or oxidative decomposition.
REFERENCES:
patent: 283247 (1883-08-01), Hall
patent: 932284 (1909-08-01), Jones
patent: 2129100 (1938-09-01), Pickup
patent: 2620106 (1952-12-01), Weeks et al.
patent: 3725010 (1973-04-01), Penhasi
patent: 3829531 (1975-07-01), Gilbert
patent: 3904175 (1975-09-01), Deschenes
patent: 3937248 (1976-02-01), Hutton
patent: 4037784 (1977-07-01), Sabarly
patent: 4065412 (1977-12-01), Dreyer
patent: 4304257 (1981-12-01), Webster
patent: 4356840 (1982-11-01), Friedland
patent: 4520950 (1985-06-01), Jeans
patent: 4541452 (1985-09-01), Paradis
patent: 4597412 (1986-07-01), Stark
patent: 4676404 (1987-06-01), Yamazaki et al.
patent: 4703913 (1987-11-01), Hunkapiller
patent: 4704256 (1987-11-01), Hood et al.
Edman et al. European J. Biochem, vol. 1, pp. 80-91, 1967.
Cartier, III Paul F.
Farnsworth Vincent P.
Cooper Iver P.
Hepperle Stephen M.
Porton Instruments, Inc.
LandOfFree
Valve block assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve block assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve block assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1621811