Stretch slipcovers

• US 6,736,453 B2
• Filed: 12/05/2001
• Issued: 05/18/2004
• Est. Priority Date: 12/05/2001
• Status: Expired due to Term

• Current Assignee: Invista North America Sarl (Invista)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Hietpas, Geoffrey D., Chambers, Jeffrey A., Gorcyca, John
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): VU, STEPHEN A
• Application Number:
  US10/007,578
• Publication Number:
  US 20030122411A1
• Time in Patent Office: 895 Days
• Field of Search: 549/6, 549/7, 528/0, 2 4/91, 2 6/95, 211/5, 297/228.1, 297/224, 297/228, 297/228.11, 297/228.12, 297/228.13, 297/229, 297/219.1, 297/225, 297/218.1, 297/218.2, 297/218.5, 442/182, 442/184
• US Class Current: 297/228.1
• CPC Class Codes: A47C 31/11 for chairs for headrests only A47C7/386; removable protective covers for car seats B60N2/60
• CPC Class Codes: Y10T 442/3008 Woven fabric has an elastic quality

Abstract

Upholstery stretch slipcovers are constructed from fabric having sufficient elastic recovery force so that the covers require no additional fabric to hold the slipcovers in place or to maintain a substantial absence of wrinkles in the slipcovers. The stretch slipcovers are particularly useful for chairs having separate back and seat cushions.

Claims

1. A stretch slipcover for a chair, consisting essentially of:

a fabric having greater than 30% extension under 15 lbs applied load in directions parallel and perpendicular to a warp direction of the fabric, the fabric comprising a front portion and side portions for covering a front surface and at least part of side surfaces of a back cushion of the chair, wherein the fabric has a minimum recovery force of 200 grams at 25% extension in directions parallel and perpendicular to a warp direction of the fabric.

2. A stretch slipcover for a chair, consisting essentially of:

a fabric having greater than 30% extension under 15 lbs applied load in directions parallel and perpendicular to a warp direction of the fabric, the fabric comprising a front portion and side portions for covering a front surface and at least part of side surfaces of a back cushion of the chair, wherein the fabric comprises a long chain synthetic elastomer comprised of at least 85% by weight of a segmented polyurethane.

3. A stretch slipcover for a chair, consisting essentially of:

a fabric having greater than 30% extension under 15 lbs applied load in directions parallel and perpendicular to a warp direction of the fabric, the fabric comprising a top portion and side portions for covering a too surface and at least part of side surfaces of a seat cushion of the chair, wherein the fabric has a minimum recovery force of 200 grams at 25% extension in directions parallel and perpendicular to a warp direction of the fabric.

4. A stretch slipcover for a chair, consisting essentially of:

a fabric having greater than 30% extension under 15 lbs applied load in directions parallel and perpendicular to a wrap direction of the fabric, the fabric comprising a top portion and side portions for covering a top surface and at least part of side surfaces of a seat cushion of the chair, wherein the fabric comprises a long chain synthetic elastomer comprised of at least 85% by weight of a segmented polyurethane.