3m Innovative Properties Company

Other

Knut Schumacher

Maiken Givot

Claus Middendorf

Robbert-Jan Hermsen

Juergen Strasser

David M Rudek

Tilo Remhof

Anton Kuepper

Harald Westkamp

Brett A Beiermann

Andreas Backes

Kerstin C Rosen

Robert Bialluch

Michael Bahners

Jean-Luc Rifaut

Thomas Keller

Waleri Wischnepolski

Aleksander Medved

Martin Stottmeister

Peter Orda

Günter Zilligen

Jörg Hahn

Benjamin Münstermann

Fredrik KG Westberg

Kerstin Christina Rosen

Sensored mixer, comprising a mixing device for mixing two or more components to produce a mixed liquid at a mixer output, and a property sensor for determining a property of a liquid, the property sensor comprising a) a channel comprising a sensing zone through which the liquid flows; b) two electrodes for generating an electric field of one or more sensing frequencies in the sensing zone; c) a data storage device comprising a pre-stored set of calibration data representing calibration impedance responses measured previously at the one or more sensing frequencies and at different property values of the property of an identical liquid; and d) a device to repeatedly i) generate between the electrodes an electric field of in the sensing zone; ii) sense between the electrodes, a response impedance; iii) derive from the response impedance a property value of the property of the liquid, using the pre-stored set of calibration data representing calibration impedance responses, wherein the property sensor is in fluid communication with the mixer output such that the mixed liquid can flow from the mixer output through the sensing zone. A method for sensing a property of the liquid and a data set of calibration data representing calibration impedance responses usable with the sensor and the method are also disclosed.

Method, data set and sensored mixer to sense a property of a liquid

The present invention provides a mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

Mat having long and short inorganic fibers

Mat () for mounting a pollution control element in a housing, comprising inorganic fibre material. At an edge surface () of the mat a plurality of fibres () are heat fused to form fusion volumes (). The average number of fusion volumes per square millimetre of the edge surface is at least 100, and at least 80% of the fusion volumes have a projected size of between 10 &#x3bc;m and 100 &#x3bc;m.

Mounting mat for pollution control elements

The present invention provides a mounting mat for mounting a pollution control element or monolith in a pollution control device, said mounting mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

Mounting mat for a pollution control device

A method and system for determining steam sterilant quality of a steam sterilizer where the steam sterilant comprises non-condensable gas(es).

Measurement of the NCG concentration in a steam sterilizer

The present invention provides a mounting mat () for mounting a pollution control element () or monolith in a pollution control device (), said mounting mat comprising a layer having a mixture of long and short fibers wherein said short fibers have a length of not more than about 13 mm and wherein said long fibers have a length of at least about 20 mm and wherein the amount of said short fibers is at least about 3% by weight based on the total weight of said mixture of long and short fibers.

Sterilant challenge device for use in steam sterilizers are described, including devices suitable for determining the efficacy of the non-condensable gas removal stage of a sterilization cycle and/or the quality of steam sterilant in relation to its content of non-condensable gas(es) are disclosed. Sterilant challenge devices having a metal tube having a defining a free space which is open at one end for the entry of sterilant and closed at the other end and at least one thermal load located around the tube are also described.

Sterilant challenge device

Devices for determining sterilization conditions within a sterilization chamber are described. Such devices include an elongate tube to be placed within said sterilization chamber and at least two temperature sensors within the cavity of the elongate tube. The at least two temperature sensors are spaced apart from each other along the length of the elongate tube by a predetermined distance and spaced apart from the interior wall of the elongate tube. Methods for determining sterilization discussed.

Device and method for determining sterilization conditions

Growing community of inventors

Neuss, Germany

Knut Schumacher