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:
Aug. 15, 1989
Filed:
Feb. 10, 1988
Andrea Romagnoli, San Lazzaro di Savena, IT;
Cestind - Centro Studi Industriali - S.R.L., San Pietro Term, IT;
Abstract
An apparatus with a rotary wheel for applying, to a flattened tube of thermally weldable filter paper forming dual-use filter sachets having multiple bags or pouches defined serially by transverse thermal welds in machines for continuously producing the filter sachets, labels spaced relative to the transverse median line of the alternate transverse thermal welds, as well as a longitudinal thread transversely on the labels and thermally weldable stickers or tabs across these alternate transverse therman welds. The rotary wheel had a plurality of equidistantly spaced heads comprising heating elements as well as pickup and infeed elements for the labels, the thread and the tabs, and further a plurality of devices with pincer elements interposed between the heads designed to fold the thread in a loop. Pressure pad elements cooperate in counter-rotation of the heads.