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. 21, 1993
Filed:
Jul. 13, 1992
Konrad Tetenborg, Lengerich, DE;
Windmoller & Holscher, Lengerich, DE;
Abstract
A method for repetitively making, filling and sealing sacks from a tubular web of thermoplastic material preferably provided with side folds, wherein, for each sack, the leading end of the tubular web is provided with a transverse weld, and from the tubular web a section constituting an open sack is cut off, and where the sack is then filled and the open side of the sack is closed by means of a transverse weld. To ensure that the filled sacks are always filled tight and full, during the filling of the sack, there is detected by means of a measurement pick-up to what level the sack is filled when filling with a certain quantity of filling material, and that in accordance with the filling level of the sack the length of the tubular web section forming the sack is adjusted.