Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate
2001-08-29
2004-08-03
Fuqua, Shawntina (Department: 3742)
Electric heating
Heating devices
With heater-unit housing, casing, or support means
C219S212000, C219S528000, C219S549000, C219S545000, C219S505000, C219S530000
Reexamination Certificate
active
06770854
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to electric blankets.
Electric blankets typically include a heating element that extends through the blanket and through which electric current passes to generate heat. The heating element is disposed within passageways formed in the weaving process.
While not used in electric blankets, scrim laminate blankets tend to be very comfortable.
FIG. 1
shows a prior art scrim laminate blanket
10
. Blanket
10
includes a scrim layer
12
sandwiched between a pair of foam layers
14
. As should be understood in this art, scrim is an open weave or knit fabric, typically of synthetic yarn, used primarily to improve the structural integrity of a blanket assembly. During manufacturing, a laminating line typically draws the scrim layer and foam layer together adjacent to a flame, thereby bonding the layers together so that a foam layer covers both sides of the scrim layer. From the laminating line, a flocking range applies oriented fibers
16
to one side of the blanket. An additional pass in the flocking range applies the oriented fibers to the other side of the blanket.
The present invention recognizes and addresses disadvantages of prior art constructions and methods.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate one or more embodiments of the invention and, together with the description, serve to explain the principles of the invention.
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Fuqua Shawntina
Inotec Incorporated
Nelson Mullins Riley & Scarborough LLP
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