Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact steam to disinfect or sterilize
Patent
1977-11-11
1979-08-14
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact steam to disinfect or sterilize
422110, 422111, 422116, 422295, A61L 500, A61L 100, A61L 300
Patent
active
041645383
ABSTRACT:
Methods and apparatus for steam sterilization in which goods are conditioned by removing air and heating to a desired temperature in a sealable chamber. Pressure change in the chamber is monitored and employed to control conditioning. The goods are subjected to a plurality of controlled cyclic pressure pulses below a predetermined supra-atmospheric pressure level by alternate evacuation and vapor pressurization of the chamber. The cyclic pressure pulsing is made responsive to load characteristics which are determined by monitoring pressure change in the chamber. In a specific embodiment, air is flushed from the chamber initially by the injection of steam simultaneously with evacuation; the evacuation phase of each pulse continues until both a predetermined time has lapsed and a predetermined vacuum level has been attained; and, the steam pressurization phase of each pulse is continued until a fixed pressure related to sterilization temperature is reached.
REFERENCES:
patent: 2080179 (1937-05-01), Merriam et al.
patent: 2131134 (1938-09-01), Baer et al.
patent: 2188371 (1940-01-01), Merriam
patent: 3035886 (1962-05-01), Hickey
patent: 3086263 (1963-04-01), Huber
patent: 3099522 (1963-07-01), Lauterbach
patent: 3206275 (1965-09-01), Sair et al.
patent: 3409389 (1968-11-01), Bjork
patent: 3436170 (1969-04-01), Lodge
patent: 3494725 (1970-02-01), Irons et al.
patent: 3598516 (1971-08-01), Shull et al.
patent: 3795483 (1974-03-01), Grafingholt
patent: 3954406 (1976-05-01), Chamberlain
patent: 3982893 (1976-09-01), Joslyn
patent: 4003703 (1977-01-01), Montgomery et al.
S. S. Block; "Disinfection, Sterilization and Preservation"; Publ. by Lee & Febiger; Phila., Pa.; 1977; pp. 493-508.
J. J. Perkins; "Principles & Methods of Sterilization in Health Sciences"; Publ. by C. C. Thomas; Springville, Ill.; pp. 110-114, 150-152 & 501-530.
"Developments in Industrial Microbiology"; vol. 18, Soc. for Industrial Microbiology; pp. 335-351.
Halleck Frank E.
Young Jack H.
American Sterilizer Company
Richman Barry S.
LandOfFree
Load conditioning control method for steam sterilization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load conditioning control method for steam sterilization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load conditioning control method for steam sterilization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1376437