Method and apparatus for manufacture of insulating sleeves

Details Method and apparatus for manufacture of insulating sleeves Method and apparatus for manufacture of insulating sleeves

1978-03-01

1979-07-10

Simmons, David A.

Cutting

Other than completely through work thickness or through work...

Combined types of cutting

83 54, 83191, B26D 308

Patent

active

041603982

ABSTRACT:
Making insulation sleeves from binder containing fibrous material, including integrated method and apparatus features for dividing a continuous blanket or web of fibrous material into individual lengths, winding individual lengths of fibrous blanket upon a multi-part separable mandrel, heating the mandrel to cure the binder in the inside surface layer of the sleeve, separating the sleeve from the mandrel, bringing the outside surface of the sleeve into contact with a heated surface to cure the binder in the outside surface layer of the sleeve, delivering the sleeves to a curing oven in which the sleeves are advanced and rotated, trimming the ends of the sleeves, and axially slitting the sleeves.

REFERENCES:
patent: 1220288 (1917-03-01), Subers
patent: 3265552 (1966-08-01), Berggren et al.
patent: 3715941 (1973-02-01), Andrews et al.
patent: 3755039 (1973-08-01), Terry
patent: 3839122 (1974-10-01), Current et al.
patent: 3855886 (1974-12-01), Andrews

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