US 4,172,349 A · Automatic bagging machine

Abstract

An automatic bagging machine for holding and opening a first bag of a plurality of juxtaposed bags held in the machine in a manner whereby the first bag may be filled with a product and detached prior to release of the first bag from the plurality of bags. The bags are of the type having an extended tab secured to a portion thereof and extending above a mouth opening of the bag. The machine comprises a holding device for engaging at least a portion of the extended tab of the first bag. A retractor member is also provided for opening the mouth opening of the first bag by pulling a side wall portion of the first bag opposite to the engaged portion of the tab and away from the engaged tab. The retractor member also clamps the side wall portion to hold the bag in an open position whereby the bag is held from opposed sides for filling the bag with the product. An actuating system is also provided for releasing the holding means and clamping means, after the bag extended tab is detached, to cause the first bag with the product to be released. The invention also encompasses the method of holding, opening and detaching the first bag.

Claims9

Dependent claims

An automatic bagging machine for holding and opening first bag of a plurality of juxtaposed bags held in said machine in a manner whereby said first bag may be filled with a product and detached prior to release of said first bag from said plurality of bags, said bags each having an extended tab secured to a portion thereof, said tab extending above a mouth opening of said bag, said machine comprising

(i) retaining means for supporting said plurality of bags in juxtaposition,
(ii) holding means for engaging at least a portion of said extended tab of said first bag,
(iii) bag opening means for opening said mouth opening of said first bag by pulling a side wall portion of said first bag, opposite to said engaged portion of said tab, away from said engaged tab, while said first bag is simultaneously detached from said retaining means,
(iv) clamping means associated with said bag opening means for clamping said side wall portion to hold said bag in an open position whereby said bag is held from opposed sides for filling said bag with said product, and
(v) actuating means for releasing said holding means and clamping means to cause said first bag with said product to be displaced, due to its own weight, from said plurality of juxtaposed bags.

2 more elements

Dependencies are inferred from the claim text.

Automatic bagging machine

Life of this patent

Automatic bagging machine

Life of this patent

Abstract

Claims9