Mushroom-type hook strip for a mechanical fastener

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5077870
SERIAL NO

07585990

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A mushroom-type hook strip for a hook-and-loop fastener has a flexible backing of thermoplastic resin and, integral with backing, an array of upstanding stems distributed across at least one face of the backing, each having a mushroom head. The stems have a molecular orientation as evidenced by a birefringence value of at least 0.001. The mushroom-type hook strip can be produced continuously by injecting resin into cavitites of a cylindrical mold while evacuating and cooling the cavities so that the cooled resin becomes molecularly oriented, thus affording to the stems excellent stiffness, durability, and tensile and flexural strength.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MINNESOTA MINING AND MANUFACTURING COMPANYP O BOX 33427 ST PAUL MINNESOTA 55133-3427 MN

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bychinski, Dale A Fairmont, MN 8 595
Lindseth, Marvin D Prescott, MN 9 616
Melbye, William L Maplewood, MN 22 1521
Nestegard, Susan K Woodbury, MN 27 2520
Wood, Leigh E Woodbury, MN 94 2873

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation