Cutlery – Combined cutlery or combined with ancillary feature – With heater
Patent
1990-06-18
1991-09-10
Watts, Douglas D.
Cutlery
Combined cutlery or combined with ancillary feature
With heater
30254, B23F 300
Patent
active
050462512
ABSTRACT:
A low-cost hand-portable light-weight tool ideally suited for seamstress or upholster in domestic or commercial work, employing an electrical/heating-element of substantially known type of construction, into at least one blade member; whereby three species of the invention are set forth including variants thereof: a.) a scissor like embodiment, whereby the essential cutting and searing function is achieved under normal scissoring action by virtue of the oppositely closing blade's vertical shearing action relative to the opposed planar surface of the substantially thermoplastic fabric material, a species performing particularly effectively upon such fabrics having a proponderance of natural fibers in the weave, as well as ultra-sheer synthetic fabrics; b.) a fixed V-mouthed configuration similar to an opened scissor, therefore essentially relying upon a transversely moving manual thrust penetration into the fabric edge, generally more suitable for those heavier fabrics having a higher-percentage of thermoplastic-fibers in the weave; c.) a mono-bladed basic embodiment of the invention, whereby a handle portion includes a heating-tip having a fairly sharp blade edge which is directly applied anywhere upon the planar surface of the fabric, including a flat backing panel serving as a provisional working surface during the manual drawing procedure;--all three species serving to simultaneously cut and minutely sear those severed fibers so as to negate occurance of fraying threads, and hence resulting in an exceptionally clean `finished edge`, ultimately saving the labor and expense involved in otherwise providing conventionally sewn seam construction.
REFERENCES:
patent: 2866068 (1958-12-01), Bernstein et al.
patent: 4198957 (1980-04-01), Cage et al.
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