The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2002
Filed:
May. 22, 2000
Michael Müller, Göttingen, DE;
Ulrich Bajohr, Duderstadt, DE;
Rudolf Müller, Bovenden, DE;
Werner Schulze, Göttingen, DE;
Detlef Erben, Göttingen, DE;
Herbert Engelhardt, Moringen, DE;
Sartorius AG, Goettingen, DE;
Abstract
In a weight sensor operating according to the principle of electromagnetic force compensation, the essential parts are fabricated from a single block of material. The weight sensor has a load receiver ( ), which is connected through an upper guide ( ) and a lower ( ) guide to the housing-integral base body ( ) of the material block. The weight sensor also has several force-reduction translating levers ( ) and coupling elements ( ) between the translating levers ( ). The housing-integral base body ( ) projects in the direction of the load receiver ( ), extends into the space between the two guides ( ) and forms a support point for the first translating lever ( ). The weight sensor is equipped with a coil ( ), which is fastened at the longer lever arm ( ) of the last translating lever ( ) and is situated in the magnetic field of a permanent magnet. To reduce the overall height and to receive higher loads, at least one translating lever is at least partially split into two partial levers ( ). At least one coupling element is split into two partial coupling elements ( ). The partial levers and the partial coupling elements are arranged symmetrically on both sides of the projecting part ( ) of the base body ( ).