Methods for making repulpable paper strings and straps through pultrusion process and related devices for the same
AssigneeEnterprises International, Inc.
InventorsHalim Chtourou, Michelle Agnes Ricard, Natalie Pagé, Guy Njamen Tchapda, Michael Lee Reynolds, Lyman Arthur Biggar
Life of this patent
Estimating the term…
Abstract
A method for forming paper straps is provided. The method may include providing a paper strip from a base sheet and directing the paper strip through a first die to form an intermediate string. The method may further include directing the intermediate string from the first die through a second die, the intermediate string exiting the second die in a substantially non-twisted state. Related apparatuses and devices to form paper straps are also provided.
Claims18
An apparatus to form a paper strap, the apparatus comprising:
- a paper strip delivery system, the paper strip delivery system configured to deliver a plurality of paper strips;
- a plurality of a first set of pultrusion string dies, each of the first set of pultrusion string dies having a first receptacle configured to receive the plurality of paper strips and compact the paper strips into intermediate strings;
- a second pultrusion string die having a plurality of second receptacles, the second receptacles configured to receive the intermediate strings and compact the intermediate strings into non-twisted strings;
- and
- a pultrusion strap die having a third receptacle, the third receptacle configured to receive and compact the non-twisted strings into the paper strap,
- wherein each of the first set of pultrusion string dies comprises a funneling die, the funneling die having a constant section portion and a tapered section portion.
A strap formation machine, comprising:
- a paper string delivery system, the paper string delivery system configured to deliver a plurality of paper strings including a plurality of a first set of pultrusion string dies, each of the first set of pultrusion string dies having a first receptacle configured to receive paper strips and compact the paper strips into intermediate strings, each of the first set of pultrusion string dies comprises a funneling die having a constant section portion and a tapered section portion;
- and
- a pultrusion strap die having a receptacle, the receptacle configured to receive and compact the paper strings to form a paper strap.
Dependencies are inferred from the claim text.