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:
Dec. 14, 1976
Filed:
Mar. 21, 1975
Anton Baier, Hamburg, D;
Hauni-Werke Korber & Co., KG, Hamburg, D;
Abstract
A machine processes tobacco, filter material or other constituent material of smokers' products, or the like, with a stream of such material moving along a predetermined path. An arrangement for detecting the mass of the material in the stream includes a first circuit operative for generating a first periodic signal having a first frequency, and a second circuit operative for generating a second periodic signal having a second frequency. At least one of the two circuits is comprised of a frequency-determining capacitor structure positioned in proximity to material moving along a predetermined portion of the stream travel path and so disposed as to have a capacitance value dependent upon the mass of material penetrated by electric field lines of the capacitor structure. A signal combining circuit combines the first and second periodic signals to form a resultant periodic signal exhibiting a beat. A measuring device provides an indication of the mass of material penetrated by electric field lines of the capacitor structure by detecting the frequency of the beat.