Adjustable pressure limiting valve for anesthesia breathing circ

Details Adjustable pressure limiting valve for anesthesia breathing circ Adjustable pressure limiting valve for anesthesia breathing circ

1998-03-06

1999-09-14

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820512, 137530, A62B 1802

Patent

active

059506237

ABSTRACT:
An adjustable pressure limiting valve having a non-linear biasing means. The valve has a movable valve member that can be moved to an open position by a predetermined pressure and a closed position on a valve seat. A rotating control knob is rotated by the user to adjust the bias acting against the movable valve member toward the closed position to, in turn, set the pressure at which the valve opens. A rotating cylindrical drum rotates along with the control knob and has a helical groove formed in its exterior and a pair of fixed pins that ride in the helical groove. When the cylindrical drum is rotated, the fixed pins riding in the helical grove cause the cylindrical drum to move along its longitudinal axis to compress or decompress a spring acting against the movable valve member. The pitch of the helical groove is designed so as to create a non-linear relationship between the rotational movement of the control knob and the longitudinal movement of the cylindrical drum.

REFERENCES:
patent: 2315775 (1943-04-01), D'Arcey
patent: 2616442 (1952-11-01), Holmes
patent: 3370827 (1968-02-01), Stehlin
patent: 3576194 (1971-04-01), Christensen
patent: 4180066 (1979-12-01), Millicken et al.
patent: 4545405 (1985-10-01), LaBelle
patent: 5419530 (1995-05-01), Kumar
patent: 5566669 (1996-10-01), Komesaroff

Affiliated with

Also associated with

Rating

Adjustable pressure limiting valve for anesthesia breathing circ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable pressure limiting valve for anesthesia breathing circ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable pressure limiting valve for anesthesia breathing circ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1499135