Christopher Lorraine P Scarazzo

US Patent:

57004935, Dec 23, 1997

Filed:

Mar 8, 1996

Appl. No.:

8/614818

Inventors:

Christopher Scarazzo - Twinsburg OH
Lawrence N. Mears - Solon OH

Assignee:

OEM/Miller Corporation - Aurora OH

International Classification:

B29C 4514

US Classification:

425116

Abstract:

An apparatus is disclosed for making a composite tube with end couplings. The composite tube is made utilizing known equipment and process to form spaced end sections and a central section having an inner corrugated portion and surrounding portion bonded to at least certain crests of the corrugations. A spaced pair of generally cylindrical end couplings are formed by sequentially telescoping the end sections over an internal cylindrically contoured die part and continuing the telescoping until an inner surface of the telescoped end section engages at least three circumferentially spaced fingers to locate the telescoped end section in concentric relationship with the core part. An external die part is positioned in spaced concentric relationship around the telescoped end section, the external die part having an inner surface contoured to the desired external configuration of a coupling being formed. A heat softened thermoplastic material is injected into the space between the die inner surface and the core to form a coupling. As the thermoplastic material is injected it is maintained at a sufficiently elevated temperature to effect a bonding between the coupling and the telescoped end section.

US Patent:

56786107, Oct 21, 1997

Filed:

Feb 24, 1995

Appl. No.:

8/394393

Inventors:

Christopher Scarazzo - Twinsburg OH
Lawrence N. Mears - Solon OH

Assignee:

OEM/Miller Corporation - Aurora OH

International Classification:

F16L 900

US Classification:

138109

Abstract:

A composite tube for use in such applications as an automobile heater hose has inner and outer tubes. The inner tube has a corrugated central section and cylindrical end portions. The outer tube is bonded to the end portions of the inner tube and to the crests of the corrugations. The composite tube has spaced identical end couplings, each with a portion extending into and bonded to the associated inner tube end portion, an end part overlying and bonded to ends of the tube portions and an external flange surrounding and bonded to the reinforcing tube end portion. The couplings include circumferentially spaced end reliefs for facilitating connection of the coupling to a tube such as a fluid inlet to or outlet from an associated automobile radiator or the like. The composite tube is continuously formed in a known manner while the end couplings are molded with a novel and improved mold and process.

US Patent:

57360910, Apr 7, 1998

Filed:

Mar 8, 1996

Appl. No.:

8/613066

Inventors:

Christopher Scarazzo - Twinsburg OH
Lawrence N. Mears - Solon OH

Assignee:

OEM/Miller Corporation - Aurora OH

International Classification:

B29C 4514

US Classification:

264263

Abstract:

A method of making a composite tube utilizing known equipment and process to form spaced end sections and a central section having an inner corrugated portion and surrounding portion bonded to at least certain crests of the corrugations. A spaced pair of generally cylindrical end couplings are formed by sequentially telescoping the end sections over an internal cylindrically contoured die part and continuing the telescoping until an inner surface of the telescoped end section engages at least three circumferentially spaced fingers to locate the telescoped end section in concentric relationship with the core part. Positioning an external die part in spaced concentric relationship around the telescoped end section, the external die part having an inner surface contoured to the desired external configuration of a coupling being formed. Injecting a heat softened thermoplastic material into the space between the die inner surface and the core to form a coupling. As the thermoplastic material is injected it is maintained at a sufficiently elevated temperature to effect a bonding between the coupling and the telescoped end section.