Timothy L Albright

US Patent:

6609999, Aug 26, 2003

Filed:

Aug 21, 2001

Appl. No.:

09/934417

Inventors:

Timothy L. Albright - High Point NC

Assignee:

Rex International Incorporated - Thomasville NC

International Classification:

B26D 310

US Classification:

493308, 493194, 493199, 83835

Abstract:

A perforation blade is used for cutting a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, and a second end adapted to extend to one side edge of the bag. A series of closely spaced perforation teeth are formed with the base, and are adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag. A starter tooth is formed at the first end of the base, and is adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line. A burst protection gap is formed between the starter tooth and a first of the series of perforation teeth. The burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.

US Patent:

7037250, May 2, 2006

Filed:

Aug 26, 2003

Appl. No.:

10/649715

Inventors:

Timothy L. Albright - High Point NC, US

Assignee:

Exopack-Thomasville LLC - Thomasville NC

International Classification:

B31B 1/90

US Classification:

493212, 493267, 493227, 493228, 493229, 493232, 531336, 531338, 53412

Abstract:

A method of forming a perforated tear line in a bag to form an easy-open corner portion. The perforation blade includes a base formed to span the corner portion of the bag. The base has a first end adapted to extend to the end edge of the bag proximate a seal line, and a second end adapted to extend to one side edge of the bag. A series of closely spaced perforation teeth are formed with the base, and are adapted to penetrate the first and second walls of the bag to form a corresponding series of perforations at the corner portion of the bag. A starter tooth is formed at the first end of the base, and is adapted to cut a starter nick in a skirt of the bag between the end edge and the proximate seal line. A burst protection gap is formed between the starter tooth and a first of the series of perforation teeth. The burst protection gap is adapted for safely receiving the seal line of the bag to prevent severing the seal line when cutting the perforations.

US Patent:

6402379, Jun 11, 2002

Filed:

May 16, 2001

Appl. No.:

09/858984

Inventors:

Timothy L. Albright - High Point NC

Assignee:

Rex International Incorporated - Thomasville NC

International Classification:

B65D 6528

US Classification:

383209, 383906

Abstract:

A bag includes first and second polyolefin walls with a thickness of between 3 and 12 mils. The bag has joined opposing side edges, opposing end edges, and at least one seal line proximate one of the end edges. The seal line extends laterally from one side edge to the other for sealing closed an end of the bag. The improvement in the bag is a perforated tear line defining an easy-open corner portion of the bag removable to form a pourer. The perforated tear line includes a vertical segment defined by a series of closely spaced perforations formed in the first and second walls of the bag and closer to one side edge of the bag than the other. The vertical segment extends in a straight path outwardly from the seal line and generally parallel to the closer side edge of the bag. An arcuate transition segment of perforations begins at an end of the vertical segment and extends in an arcuate path towards the closer side edge of the bag. A diagonal segment of perforations extends along a straight incline from an end of the arcuate transition segment towards the closer side edge of the bag.