Pressure relief valve

Details Pressure relief valve Pressure relief valve

1987-05-28

1989-04-25

Hepperle, Stephen

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

12820524, 137469, 251337, 267180, A62B 902

Patent

active

048238287

ABSTRACT:
An inhalation/exhalation valve for use in conjunction with a medical respiration apparatus to maintain an adjustable positive end expiration pressure through incorporation of novel valving elements including a novel, adjustable spring for establishing and maintaining the threshhold pressure of exhalation and a novel flow control valve disk structure which utilizes the dynamic pressure of exhalation flow to assist in providing control over and fine adjustability of the valve disk motion and which further permits continuous supply flow during both the inhalation and exhalation portions of the patient's breathing cycle.

REFERENCES:
patent: 2820469 (1958-01-01), Seeler
patent: 2863446 (1958-12-01), Huxley, III et al.
patent: 2947314 (1960-08-01), Bloom
patent: 2954793 (1960-10-01), Seeler
patent: 3088477 (1963-05-01), Bloom
patent: 3276462 (1966-10-01), Matchett
patent: 3630197 (1971-12-01), Hirano
patent: 3751025 (1973-08-01), Beery et al.
patent: 3799185 (1974-03-01), Milnes et al.
patent: 3819169 (1974-06-01), Imme et al.
patent: 3872875 (1975-03-01), Raidl
patent: 4111407 (1978-09-01), Stager
patent: 4207884 (1980-06-01), Isaacson
patent: 4350176 (1982-09-01), Lace
patent: 4406302 (1983-09-01), Olesen
patent: 4411285 (1983-10-01), Oswell
patent: 4446859 (1984-05-01), Pederson
patent: 4574797 (1986-03-01), Christianson
patent: 4592384 (1986-06-01), Cappa et al.
patent: 4616646 (1986-10-01), Beaussant
patent: 4622964 (1986-11-01), Flynn
Engineering Fluid Mechanics, pp. 188-195, Roberson and Crowe, Houghton Mifflin Co, 1980.

Affiliated with

Also associated with

Rating

Pressure relief 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 Pressure relief valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure relief valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1188965