Sartorius Lab Instruments Gmbh & Co., Kg

Sartorius Ag

Michael Mueller

Swen Weitemeier

Steffen Strietzel

Werner Schulze

Alfred Klauer

Jan Von Steuben

Friedrich Helmsen

Tanja Mueck

Jonas Bode

Christian Schrader

Ulrich Bajohr

Paul Janssens

Jean-Pierre Decheneux

Michael Fiedler

Lars Bornemann

Michael Domhardt

A pot magnet () for a moving coil () of an electronic balance operating using the electromagnetic compensation principle includes: &#x2014;a pot base () and a pot wall () rising vertically from the pot base, and &#x2014;a permanent magnet structure () disposed within the pot wall and having an annular gap thereto, which structure has a permanent magnet body () arranged on the pot base side and a pole plate () connected to the surface thereof facing away from the pot base side. The pole plate is fixed by a rigid mechanical connection independent of the permanent magnet body to the pot base at a predetermined distance therefrom and the permanent magnet body is bonded to the pole plate on a surface facing the pot base without contacting the pot base.

Pot magnet for a moving coil arrangement in an electronic balance

A welding device for the sealing welding of thermopolastic hoses (), includes a clamping device () with at least two clamping jaws (), of which at least one is movable and between which a hose () which is to be welded can be clamped, wherein the clamping device () has a heating devices () which is coupled to a control unit () and is configured to heat the hose clamped between the clamping jaws (). The invention is distinguished in that the at least one movable clamping jaw () is actuable with a controllable, bidirectional actuator (-) which is coupled to the control unit () in such a manner that the clamping pressure acting on the hose () can be adjusted independently of the heating device.

Welding device, use thereof as a control valve, and metering device

A container arrangement includes a plurality of flexible disposable bags () which each have an inlet element to which a flexible connecting tube () is attached, wherein each connecting tube () branches off from a flexible common main line () which has a common inlet section () on the intake end. The main line () has a common gas outlet section () at the discharge end. A non-return valve () which closes against the gas outlet direction and a gas-permeable, liquid-tight sterile filter () are arranged in the common gas outlet section.

Container arrangement and method for filling flexible disposable bags

A filling system has a filling apparatus () and a container arrangement inserted into the filling apparatus. A main line includes a feed line (), connected to a supply container (), and a trunk line (), connected linearly downstream of the feed line (). Outside the trunk line (), at a branching point (), a branch line () branches from the main line () to a compressed-gas source (), and the main line () and the branch line (), on that side of the branching point () which is directed away from the trunk line, pass through a double-valve arrangement () having two hose-clamping valves () controlled oppositely to one another.

Filling system and filling method

A top-pan scale with a scale pan which is supported on at least one force transducer () of a force measurement system () and with a corner load sensor which outputs a signal if the weighing goods are positioned eccentrically on the scale pan. The corner load sensor () has a flat underside via which it can be placed on, or attached to, the scale pan or a bottom pan of the scale. The corner load sensor also has a flat upper side on which a scale pan () can be placed or attached. The corner load sensor () is connected to a positionally fixed electronic processor () via a force-feedback-free connection (). Embodiments of the corner load sensor can therefore be used for a wide variety of scale designs and can be retrofitted easily.

Top-pan scales with corner load sensor

A weighing system, using the principle of electromagnetic force compensation, which includes a permanent magnet system () having an air gap, a shielding cover (), a coil () located inside the air gap, a transmission lever () to whose longer lever arm the coil is attached, and upon whose shorter lever arm the weight transferred by the load receiver acts, a position sensor () which detects the position of the transmission lever and which is situated in the vicinity of the coil, and a control amplifier () for controlling the current passing through the coil. Further, at least one vertical support () is connected to the transmission lever in the vicinity of the coil and the position sensor and projects through an opening () in the shielding cover. A counterweight () is placed on this/these support(s) closely above the shielding cover.

Weighing system using electromagnetic force compensation

A scale having an electronic weighing system to generate a weight-dependent signal and a digital signal processing unit (). The digital signal processing unit () has a circuit or program parts which measure the time elapsed since connection of the voltage to the scale. To dramatically reduce the time required for the scale to reach its full accuracy after connection of the voltage supply, the digital signal processing unit () has computation modules () that correct the weight-dependent signal generated by the weighing system by a correction value that depends on the time elapsed. The magnitude of this correction value, starting from an initial correction value, converges with increasing time elapsed to a constant end value that differs from the initial correction value.

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Goettingen, Germany

Michael Mueller