Acoustical laundry tub blanket

• US 20040007028A1
• Filed: 07/09/2002
• Published: 01/15/2004
• Est. Priority Date: 07/09/2002
• Status: Active Grant

• Current Assignee: Owens Corning Intellectual Capital, LLC (Owens Corning)
• Original Assignee: Owens- Corning Fiberglas Technology Incorporated (Owens Corning)
• Inventors: Panther, Allen L., Johnson, Phil
• Granted Patent: US 6,807,700 B2
• Time in Patent Office: Days
• US Class Current: 68/3R
• CPC Class Codes: D06F 37/26 Casings; Tubs

Abstract

Methods and apparatus are provided for acoustically insulating a washing machine and, specifically, a laundry tub. An acoustical blanket of thermoplastic material extends around and insulates the laundry tub. A wall of the tub has at least one protuberance for mating with a hole of the acoustical blanket. The acoustical blanket may be crimped over a top of the wall. Protuberances include knobs and elongate members. The thermoplastic material is selected from a group consisting of a polyester, polyethylene, polyolefin, polypropylene, polyethylene terephthalate, rayon, nylon, acrylic, hemp, kenaf, cotton and combinations thereof. A facing layer(s) may additionally be provided on the acoustical blanket. The facing layer being selected from a group consisting of polyester, rayon, metallic foil and combinations thereof. The blanket may also mate directly with a cylinder around the tub.

Claims

1. A washing machine, comprising:

a housing;

one of a laundry tub and a cylinder in the housing having at least one protuberance thereon; and

an acoustical blanket of thermoplastic material having a least one hole, the acoustical blanket extending around the one of the laundry tub and cylinder, the at least one hole filled by the at least one protuberance.

2. The washing machine of claim 1, wherein the acoustical blanket further includes a cutout portion for providing access to a wall of the one of the laundry tub and the cylinder.

3. The washing machine of claim 1, wherein the acoustical blanket further comprises complimentary configured terminal ends.

4. The washing machine of claim 1, wherein the thermoplastic material is selected from a group consisting of polyester, polyethylene, polyolefin, polypropylene, polyethylene terephthalate, rayon, nylon, acrylic, hemp, kenaf, cotton and combinations thereof.

5. The washing machine of claim 1, wherein the acoustical blanket is composed of polyester staple fibers and polyester bicomponent fibers of distinct diameters and lengths.

6. The washing machine of claim 1, wherein the acoustical blanket includes melt blown fibers.

7. The washing machine of claim 1, wherein the acoustical blanket includes a facing layer.

8. The washing machine of claim 7, wherein the facing layer is selected from a group consisting of polyester, rayon, metallic foil and combinations thereof.

9. A washing machine, comprising:

a housing including a lid;

one of a laundry tub and a cylinder in the housing accessible by the lid, the one of the laundry tub and cylinder having a wall with at least one protuberance thereon; and

an acoustical blanket of thermoplastic material having a least one hole, the acoustical blanket extending snugly around the wall of the one of the laundry tub and cylinder, the at least one hole filled by the at least one protuberance.

10. The washing machine of claim 9, wherein the one of the laundry tub and cylinder includes a plurality of vertically arranged protuberances.

11. The washing machine of claim 9, wherein the at least one protuberance mates with a recess in the wall of the one of the laundry tub and cylinder.

12. The washing machine of claim 9, wherein the at least one protuberance includes one of an elongate member and a knob.

13. A method of insulating a washing machine, comprising:

providing a laundry tub with a protuberance on a wall thereof;

enclosing the laundry tub with an acoustical blanket of thermoplastic material having a hole; and

mating the protuberance with the hole.

14. The method of claim 13, including crimping an upper surface of the acoustical blanket over a top of the wall.

15. The method of claim 13, including providing an access to the wall of the laundry tub.