Arthur L Phipps

US Patent:

43647227, Dec 21, 1982

Filed:

Apr 2, 1981

Appl. No.:

6/250273

Inventors:

Arthur L. Phipps - Tallmadge OH

Assignee:

U.C. Industries - Tallmadge OH

International Classification:

B29F 304

US Classification:

425192R

Abstract:

A foam extrusion die assembly includes a die body and a pair of spaced cantilevered lip members having opposed lips defining an elongated, arcuate die orifice through which extrudate moves both laterally and axially outwardly relative to the lip members. Each lip member further has an axially extending flexible leg and a foot at the end of the leg opposite the lip. Each foot is adjustably and sealingly clamped to the die body by a retainer bar whereas each leg is free to flex to pivot the lips with respect to each other. Adjustment screws journaled in the die body vary the spacing between the feet of the lip members and pivot the lips about the flexible legs to produce a desired die orifice size and shape.

US Patent:

43952143, Jul 26, 1983

Filed:

Aug 27, 1981

Appl. No.:

6/297036

Inventors:

Arthur L. Phipps - Tallmadge OH
Ben Stoyanov - Akron OH

Assignee:

U.C. Industries - Tallmadge OH

International Classification:

B29D 2700
B29F 304

US Classification:

425214

Abstract:

An apparatus is provided for forming, shaping and surface finishing a foam extrudate as it expands and passes from an extrusion die to obtain, in particular, foam or cellular bodies having a substantial thickness in relation to their width. The apparatus comprises opposed extrudate shaping members located on opposite sides of the die orifice of the extrusion die and extending immediately downstream therefrom. The upstream end of each shaping member is hingedly supported adjacent and preferably slightly upstream from the die orifice, and the hinged supports at the upstream ends of the shaping members are uniformly adjustable towards and away from the central transversely extending plane of the extrusion die. The downstream end of each shaping member is hinged to a respective conveyor or surface finishing member of a conveyor or surface finishing assembly. The conveyor or surface finishing members each include a moving belt backed by relatively large area plates, and together form therebetween a downstream continuation of the passageway formed between the shaping members.

US Patent:

43714889, Feb 1, 1983

Filed:

Apr 2, 1981

Appl. No.:

6/250266

Inventors:

Arthur L. Phipps - Tallmadge OH
Ben Stoyanov - Akron OH

Assignee:

U.C. Industries - Tallmadge OH

International Classification:

B29D 2700
B29F 301
B29D 724

US Classification:

264 51

Abstract:

An improved method and apparatus using edge shaping and traction rolls is disclosed for shaping and forming plastic foams as a foamable extrudate is extruded through an arcuate orifice of an extrusion die. Immediately adjacent and downstream of the die orifice are opposed sets of curved rolls, each having substantially the same center of curvature as the die orifice and being positioned, respectively, on opposite sides of the extrudate pass line. Moreover, two pairs of traction shaping rolls downstream of the curved rolls engage edge portions of the extrudate further to assist in shaping the same especially in connection with the shaping and forming of relatively wide bodies of plastic foam material. Several parameters of the traction rolls may be adjusted to selected values affecting the force and direction applied by such rolls to the extrudate. Parameters such as compression force, slippage, angle of attack, and/or surface area of the extrudate over which such forces may be applied, may be remotely adjusted.