Method for cleaning and disinfecting used plastic Petri dishes

Details Method for cleaning and disinfecting used plastic Petri dishes Method for cleaning and disinfecting used plastic Petri dishes

1981-10-20

1983-11-29

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including distortion or deformation of work

134 23, 134 254, 134 30, 422 38, B08B 306, A61L 200

Patent

active

044179260

ABSTRACT:
Contaminated plastic waste material in the form of used Petri dishes, so-called agar plates, is rendered harmless and cleaned by placing the agar plates in a bacterium-tight heating chamber maintained substantially at atmospheric pressure and contacting them with water at an elevated temperature, preferably 90.degree.-98.degree. C. for a predetermined period of time. After the predetermined period the agar plates are rinsed with water which is then drained off through an outlet in the bottom of the heating chamber. The agar plates to be treated are loaded into the heating chamber in batches contained in bags wholly or partly consisting of a plastic sheet material which is solid and substantially insoluble in water at room temperature but soluble in water at the elevated temperature. Invention makes use of a property of agar plates, namely that the dishes and/or lids thereof warp due to internal stresses in response to the heated water to thereby open them up in the bacterium-tight heating chamber to enable internal cleaning and rinsing.

REFERENCES:
patent: 1661140 (1928-02-01), Nell et al.
patent: 2296974 (1942-09-01), Beal
patent: 3725003 (1973-04-01), Moore et al.
patent: 3853622 (1974-12-01), Rutten
patent: 3893843 (1975-07-01), Fry et al.
patent: 4078943 (1978-03-01), Saurenman

Affiliated with

Also associated with

Rating

Method for cleaning and disinfecting used plastic Petri dishes 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 for cleaning and disinfecting used plastic Petri dishes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for cleaning and disinfecting used plastic Petri dishes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-606359