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. 16, 1991
Filed:
May. 25, 1989
Carl Schenck AG, Darmstadt, DE;
Abstract
A dosing or metering feeding apparatus for precisely feeding a stream of powdered or fine grained loose bulk material includes a cylindrical container (1) for storing the loose material (3). A rotating turntable (4) essentially closing the bottom of the container (1). A discharge groove (6) is located in the turntable around the circumference of the turntable (4), whereby the discharge groove (6) opens radially outwardly. A stripper is arranged to reach into the discharge groove (6) for stripping the dosed material (3) from the discharge groove (6) and for discharging the dosed or metered material. This arrangement provides a clearly defined discharge rate of the loose material. The discharge rate may be simply adjusted to different desired feed rates by varying the rotational speed of the turntable (4). A high dosing or metering precision is achieved. The dosing apparatus may be used together with a weighing scale for carrying out a gravimetric feeding by controlling the turntable drive in closed loop fashion by a control signal derived from the weighing scale.