US 5,961,685 A · Apparatus for applying a generally uniform sizing composition to glass fibers

Abstract

A sizing applicator is provided for applying a coating of sizing composition to glass fibers. The sizing applicator includes a housing and a roll applicator which is rotatably coupled to the housing. The housing has a supply port adapted to receive sizing composition from a sizing supply source, an exit slot and a passageway extending from the supply port to the exit slot. The passageway receives sizing composition from the supply port and delivers the sizing composition to the exit slot such that the sizing composition exits the housing and is received on an outer surface of the roll applicator. The roll applicator is spaced from the housing such that the housing does not substantially contact the sizing composition once it is received on the roll applicator.

Claims18

Dependent claims

An apparatus for producing sized glass fibers comprising:

a heated bushing for supplying streams of molten glass to be drawn into continuous fibers;
a gathering shoe spaced from said bushing;
a device spaced from said bushing and adapted to draw said streams into said fibers;
and
a sizing applicator located between said bushing and said gathering shoe and including a housing and a roll applicator which is rotatably coupled to said housing, said housing having a supply port adapted to receive sizing composition under pressure from a sizing supply source, an exit slot and a passageway extending from said supply port to said exit slot, said passageway receiving sizing composition from said supply port and delivering said sizing composition to said exit slot such that said sizing composition exits said housing and is received on an outer surface of said roll applicator, said roll applicator being spaced from said housing such that said housing does not substantially contact and alter sizing composition thickness of said sizing composition received on said roll applicator.

2 more elements

A sizing applicator for applying a coating of sizing composition to glass fibers comprising:

a housing and a roll applicator which is rotatably coupled to said housing, said housing having a supply port adapted to receive sizing composition from a sizing supply source, an exit slot and a passageway extending from said supply port to said exit slot, said passageway receiving sizing composition from said supply port and delivering said sizing composition to said exit slot such that said sizing composition exits said housing and is received on an outer surface of said roll applicator, said roll applicator being spaced from said housing such that said housing does not substantially contact said sizing composition once it is received on said roll applicator, wherein said roll applicator further includes first and second end portions, said first end portion having first spirals and said second end portion having second spirals, said first and second spirals being of opposite hands so as to divert sizing composition which contacts said first and second end portions inwardly as said roll applicator rotates.

Dependencies are inferred from the claim text.

Apparatus for applying a generally uniform sizing composition to glass fibers

Life of this patent

Apparatus for applying a generally uniform sizing composition to glass fibers

Life of this patent

Abstract

Claims18