Matthew C Ankrom

US Patent:

6565350, May 20, 2003

Filed:

Jan 19, 2001

Appl. No.:

09/766341

Inventors:

Roger Lee Siferd - Findlay OH
Matthew C. Ankrom - Findlay OH
Larry E. Porter - Findlay OH

Assignee:

Hancor, Inc. - Findlay OH

International Classification:

B29C 5334

US Classification:

425393, 425392, 425398, 425DIG 218

Abstract:

A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

US Patent:

6660199, Dec 9, 2003

Filed:

Jan 19, 2001

Appl. No.:

09/766856

Inventors:

Roger Lee Siferd - Findlay OH
Matthew C. Ankrom - Findlay OH
Larry E. Porter - Findlay OH

Assignee:

Hancor, Inc. - Findlay OH

International Classification:

B29C 5334

US Classification:

264150, 2642102, 264285, 264296

Abstract:

A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

US Patent:

20040041302, Mar 4, 2004

Filed:

Aug 27, 2003

Appl. No.:

10/649491

Inventors:

Roger Siferd - Findlay OH, US
Matthew Ankrom - Findlay OH, US
Larry Porter - Findlay OH, US

International Classification:

B29C053/08

US Classification:

264/295000, 264/296000, 264/339000

Abstract:

A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

US Patent:

61995924, Mar 13, 2001

Filed:

Feb 5, 1999

Appl. No.:

9/245766

Inventors:

Roger Lee Siferd - Findlay OH
Matthew C. Ankrom - Findlay OH
Larry E. Porter - Findlay OH

Assignee:

Hancor, Inc. - Findlay OH

International Classification:

F16L 900

US Classification:

138109

Abstract:

A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.