Method of operating an expandable chamber with delay valve

Details Method of operating an expandable chamber with delay valve Method of operating an expandable chamber with delay valve

1983-07-08

1986-09-23

Lacey, David L.

Signals and indicators

Indicators

Temperature responsive or compensating means

422 26, 422 28, 422 38, 422116, 422295, 422310, 137468, 116220, G01K 1108, G01K 534

Patent

active

046128727

ABSTRACT:
A method of operating an expandable chamber formed with a valve opening in a wall of the chamber, which permits the surrounding environment, such as high temperature steam, to enter the chamber is used. A temperature responsive delay valve closes the chamber to capture a quantity of the steam in an autoclave sterilizing cycle. The closing of the valve is delayed until the high temperature steam has been applied for a predetermined time. A later reduction in pressure surrounding the chamber causes the chamber to expand, which provides an indication that an adequate sterilizing cycle has been provided. The expansion force may also be used to permit a container to close at the end of a sterilizing cycle.

REFERENCES:
patent: 2092445 (1937-09-01), Doulgheridis
patent: 2997397 (1961-08-01), Doulgheridis
patent: 3904111 (1975-09-01), Peterson
patent: 4149650 (1979-04-01), Sanderson
patent: 4190987 (1980-03-01), Naidus
patent: 4196166 (1980-04-01), Sanderson
patent: 4228914 (1980-10-01), Sanderson
patent: 4247517 (1981-01-01), Sanderson
patent: 4251482 (1981-02-01), Sanderson
patent: 4318070 (1982-03-01), Dohrmann et al.
patent: 4335071 (1982-06-01), Thornton
patent: 4372921 (1983-02-01), Sanderson
patent: 4374570 (1933-02-01), Sanderson
patent: 4416417 (1983-11-01), Sanderson et al.
patent: 4457327 (1984-07-01), Pepper

Affiliated with

Also associated with

Rating

Method of operating an expandable chamber with delay 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 Method of operating an expandable chamber with delay valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of operating an expandable chamber with delay valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-760113