Steeltin Can Corporation

Other

Cerex Corporation

Stephen C Scott

Arthur E Colvin

Matthew W Hanley

Edmund A Nelson

Arthur E Colvin, Jr

Lucille A Oullette

Biological freezing apparatus for use on unmodified laboratory liquid cryogen storage container including a specimen holder for holding biological specimens to be frozen and a motor for lowering the specimen holder into the interior of the laboratory liquid cryogen storage containers. An electronic circuit controls the motor so that the specimen holder moves into the interior of the laboratory liquid cryogen storage container at a predetermined desired rate. The specimen holder is constructed of a non-thermally conductive material and this plus its configuration along with the movement of the specimen holder downward at a predetermined rate allows freezing of live biological specimens without doing substantial damage to the specimens.

Biological freezing apparatus

Apparatus and method are disclosed for detecting the presence of a analyte in a sample. The apparatus includes an optical transmitter and receiver for transmitting light toward the sample and receiving a portion of the reflected light. The optical receiver acts in conjunction with a data processor to convert the reflected light to data representing the density of analyte in the sample. The apparatus thus disclosed is portable and can be transported to remote testing sites.

Reflectance gradient densitometer

An apparatus for and process of pasteurizing or sterilizing and subsequent cooling of edible foodstuffs in containers. The containers are relatively thin-walled and are fabricated from plastic. At least one of the containers is provided with an internal probe which monitors the pressure and temperature at its substantially geometric center. The pressure within a chamber of the apparatus, within which pasteurization or sterilization is to be effected, is also monitored. A comparator compares the pressures within the chamber and the container having the probe therein to develop a control signal representative of the pressure difference. A controller is arranged to respond to the control signal to maintain a predetermined pressure relationship while heating and subsequently cooling the foodstuffs. The pressure difference which is maintained may be zero, or be slightly above or below zero.

Process of pasteurizing or sterilizing edible foodstuffs

A probe suitable for monitoring temperature and pressure in a relatively thin-walled container fabricated from plastic. The internal probe monitors the pressure and temperature at substantially the geometric center of a container in a pasteurizing or sterilizing apparatus. The probe is provided with a sharp container-wall piercing end and a tapered threaded self tapping portion which provides an effective seal. The probe is hollow so that fluid can be conducted from the interior of the container and its pressure determined. A temperature sensing member is carried within the hollow probe so that temperature within the container may be sensed.

Probe for sensing temperature and/or pressure

An apparatus for pasteurizing or sterilizing and subsequent cooling of edible foodstuffs in containers. The containers are relatively thin-walled and are fabricated from plastic. At least one of the containers is provided with an internal probe which monitors the pressure and temperature at its substantially geometric center. The pressure within a chamber of the apparatus, within which pasteurization or sterilization is to be effected, is also monitored. A comparitor compares the pressures within the chamber and the container having the probe therein to develop a control signal representative of the pressure difference. A controller is arranged to respond to the control signal to maintain a predetermined pressure relationship while heating and subsequently cooling the foodstuffs. The pressure difference which is maintained may be zero, or be slightly above or below zero.

Growing community of inventors

Frederick, MD, United States of America

Stephen C Scott