Appeal 2006-3022
Application 10/286,434
integration of a heat sensing device into a component of the sealing jaw that
absorbs residual heat from the seal element. (Specification 3). Claims 1 and
16 are reproduced below:
1. Apparatus for sealing a plastic film, comprising:
at least one jaw housing a sealing element;
a source of impulse power to heat said sealing element over a
predetermined amount of time to a temperature range effective for
sealing said plastic film;
a temperature sensor for sensing the temperature related to the
temperature of said sealing element;
a controller responsive to said sensed temperature adapted to
modify the duration of said impulse power applied to said sealing
element when said sensed temperature falls outside said temperature
range and to continuously maintain said temperature range within said
range over a plurality of sealing cycles.
16. Apparatus for sealing a plastic film, comprising:
at least one sealing jaw;
a sealing element mounted in said jaw with a thermally
conductive mounting member;
a source of impulse power to heat said sealing element over a
predetermined amount of time to a temperature range effective for
sealing said plastic film;
a temperature sensor for sensing the temperature of said
mounting member;
2
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Last modified: September 9, 2013