US 7,611,284 B2Granted

Closure device

AssigneeThe Glad Products Company

InventorsMichael G. Borchardt, Ronald J. Cisek

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Abstract

A closure device having first and second fastening strips arranged to be interlocked over a predetermined length is provided. Each of said first and second fastening strips includes first and second closure elements separated by an intermediate area, wherein the first closure element on the first fastening strip is arranged to be interlocked over a predetermined length with the first closure element on the second fastening strip, and the second closure element on the first fastening strip is arranged to be interlocked over a predetermined length with the second closure element on the second fastening strip. Each of the closure elements may be colored with a colorant. For example, the closure elements on one fastening strip may be colored with an opaque pigment, and the intermediate area on that fastening strip may colored with a first translucent pigment. The closure elements on the other fastening strip may be colored with a translucent pigment, and the intermediate area on that fastening strip may be colored with a second opaque pigment. When the closure device is occluded, the colors of the first and second pigments combine to cause a change in color. The change in color may be observed from either side of the closure device.

Claims34

Dependent claims

A closure device comprising first and second fastening strips arranged to be interlocked over a predetermined length, said first fastening strip includes first and second closure elements, said second fastening strip includes first and second closure elements, said first closure element on said first fastening strip is arranged to be interlocked over a predetermined length with said first closure element on said second fastening strip, said second closure element on said first fastening strip is arranged to be interlocked over a predetermined length with said second closure element on said second fastening strip,

said first closure element on said first fastening strip is of a first color, said second closure element on said first fastening strip is of a second color, said first closure element on said second fastening strip is of a third color, said second closure element on said second fastening strip is of a fourth color, whereby, when said first closure element on said first fastening strip interlocks with said first closure element on said second fastening strip, said first and third colors produce a fifth color and whereby, when said second closure element on said first fastening strip interlocks with said second closure element on said second fastening strip, said second and fourth colors produce a sixth color,
said first and second closure elements on said first fastening strip are separated by a first intermediate area, said first and second closure elements on said second fastening strip are separated by a second intermediate area, said first intermediate area is a seventh color and said second intermediate area is an eighth color.

A container comprising first and second sidewalls, said first and second sidewalls including mating first and second fastening strips respectively, each of said first and second fastening strips includes first and second closure elements, said first closure element on said first fastening strip is arranged to be interlocked over a predetermined length with said first closure element on said second fastening strip, said second closure element on said first fastening strip is arranged to be interlocked over a predetermined length wit said second closure element on said second fastening strip

said first closure element on said first fastening strip is of a first color, said second closure element on said first fastening strip is of a second color, said first closure element on said second fastening strip is of a third color, said second closure element on said second fastening strip is of a fourth color, whereby, when said first closure element on said first fastening strip interlocks with said first closure element on said second fastening strip, said first and third colors produce a fifth color and whereby, when said second closure element on said first fastening strip interlocks with said second closure element on said second fastening strip, said second and fourth colors produce a sixth color
said first and second closure elements on said first fastening strip are separated by a first intermediate area, said first and second closure elements on said second fastening strip are separated by a second intermediate area, said first intermediate area is a seventh color and said second intermediate area is an eighth color.

Dependencies are inferred from the claim text.

Facts

Application: 10/832,154Filed 26 Apr 2004
Published: US 2005/0235468 A127 Oct 2005
Granted: 3 Nov 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B65D 33/255
Characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape:…
B65D 33/2541
Using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor:…
Y10T 24/2532
Zipper or required component thereof: having interlocking surface with continuous cross section
Y10T 24/45168
Zipper-type [e.g., slider]: for container [e.g., bag]

Family

US 2005/0235468 A1Pre-grant publication · published 27 Oct 2005
US 7,611,284 B2This patent

From the US filing history. Foreign family members aren’t listed.

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