Karen J Moser

US Patent:

47402610, Apr 26, 1988

Filed:

Sep 25, 1986

Appl. No.:

6/912029

Inventors:

Karen K. Moser - Omaha NE

Assignee:

American Telephone and Telegraph Company, AT&T Technologies, Inc. - Berkeley Heights NJ

International Classification:

B29C 4702

US Classification:

15624412

Abstract:

An extrusion apparatus for providing a plastic jacket (32) about an advang cable core (23) which has been wrapped with a laminated metallic foil (76) includes dual core tubes. An inner one (86) of the core tubes extends into an extrusion chamber and has a free end portion (89) spaced from and disposed concentrically within an end portion (94) of an outer core tube (93). The foil, which is relatively cool and which functions as a shield (26), engages an inner wall of the inner core tube. This causes an overlapped longitudinal seam (78) of the shield to be maintained during the passage of the shielded cable core through the inner core tube. As a result, molten plastic material which is to form the jacket (32) is isolated thermally from the relatively cool shield and is prevented from being cooled prematurely prior to its being tubed about the advancing cable core.

US Patent:

51524767, Oct 6, 1992

Filed:

Jun 27, 1991

Appl. No.:

7/722733

Inventors:

Karen K. Moser - Omaha NE

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

B65H 5712
B65H 5718
B65H 5500
B65H 4908

US Classification:

242157R

Abstract:

An improvement is disclosed for payout tubes secured within a container for a coil of cable therein so that the tube projects at its exit end through a hole in a wall of the container. The tube is adapted to dispense cable fed into its entrance end from inside to outside the container. The improvement is, broadly, providing at such entrance end a curved cable support surface extending around the tube of large enough radius of curvature to prevent deformation in cable, fed in contact with the surface into the tube, of tight bends causing kinking of and damage to the cable. Such surface may be provided either on a cap in turn fittable onto the tube at its entrance end or, alternatively, directly on the tube at that end.