Bag machine

US3961461A · kind A · utility

Assignee

• St. Regis Paper Company · US

Inventors

• Walter Ruf · Ditzingen, DE
• Robert G. Kelley · South Jordan, US

Key dates

• Filing date: Mar 3, 1975
• Grant date: Jun 8, 1976
• Expiry date: Mar 3, 1995

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B43/34
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A bag machine is disclosed wherein bags are supplied from a bag holder such as a bag magazine to a multi-station bag filler whereat they are filled and are then supplied to a bag closer which closes and seals the filled bag. The multi-station bag filler is shown with four stations with bags being supplied to a bag pickup station therein from the bag closer. The bag filler includes a frame rotating on a base with gripper hands carried on arm means. The gripper hands grip face-to-face over the two top corners of a bag in the pickup station. A motor is provided to index the frame into the four different stations with a second station being a bag opening station whereat the gripper hands move toward each other and move upwardly to move the opened bag up onto an openable spout. A third station is a bag-filling station whereat material is delivered from a hopper via the spout to the opened bag. The fourth station is a bag-discharge station to the closer-sealer. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matt…