Package making – Methods – With contents treating
Patent
1979-06-06
1982-01-05
Culver, Horace M.
Package making
Methods
With contents treating
53434, 53469, 53512, B65B 3106, B65B 3102
Patent
active
043087108
ABSTRACT:
A process and apparatus for packaging products such as dusty powders are provided. The apparatus is an enclosed housing (e.g., a glove box) with an open lower end and having two glove openings with gloves attached, an opening for attaching a waste disposal bag thereto, and an optional opening for attaching a bag for product samples. The glove box has means for securing a bag in a filling position around the lower end and has the discharge end of a product fill pipe extending into the open lower end. There are vacuum means for applying a vacuum to the inside of the glove box and for applying a vacuum from the inside through apertures circumferentially arranged around the lower edge of the glove box. The described process involves attaching a bag, e.g., polyethylene bag, around the open lower end of an enclosed filling chamber (e.g., a glove box), filling the bag with product from inside the glove box, sealing the filled bag at a point between the product in the bag and the lower end of the glove box, cutting the seal to create a bag segment attached to the lower end of the glove box, removing the sealed filled bag, placing a second bag over the bag segment and attaching it to the glove box above where the bag segment is attached and removing the bag segment from inside the glove box, i.e., by using the gloves attached to the glove openings to reach inside the glove box and pull the bag segment off of the lower end.
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Culver Horace M.
E. I. Du Pont de Nemours and Company
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