Apparatus for installing valve-filler sacks on the fillers of a packing machine
CA 1291088 C · Owner: Mittelbach, Helmut · Inventors: Mittelbach, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Side-fold valve-type sacks that are closed on the opposite sides by a closing seam that runs transversely to the long edges are installed on the filler(s) of a packing machine. The valve is provided beneath a closing seam in a long side wall and a spreading system which spreads the valve can pivot about a horizontal axis (13) such that the valve is lined up with the filler (5). The spreader system (3) can be moved along a horizontal track (4), the pivoting axis (13) of the spreader system (3) being parallel to and at a distance from the track (4) and the track parallel to the centre longitudinal axis of the filler.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.