Apparatus for destroying syringe-type needles by electrical curr

Details Apparatus for destroying syringe-type needles by electrical curr Apparatus for destroying syringe-type needles by electrical curr

1993-06-11

1994-08-09

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23K 1122

Patent

active

053368622

ABSTRACT:
An apparatus and method for destroying or rendering safe the metal needle portion of a hypodermic needle syringe in which the needle is destroyed by electrical resistance heating, the apparatus having complimentary electrodes which contact only the end one-eighth inch to three-sixteenths inch (1/8"-3/16") portion of the needle until the needle hub contacts the first electrode, at which point the first electrode is slidably movable toward the second electrode allowing the destruction of the remaining portion of the needle, the method being the progressive destruction of the end one-eighth to three-sixteenths (1/8"-3/16") portion of the needle until the hub portion of the needle contacts the first electrode, at which time the first electrode slidably moves toward a second electrode allowing the destruction of the remaining one-eighth to three-sixteenths inch (1/8"-3/16") of the needle.

REFERENCES:
patent: 4628169 (1986-12-01), Ch'ing-Lung
patent: 4860958 (1989-08-01), Yerman
patent: 4877934 (1989-10-01), Spinello
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patent: 4965426 (1990-10-01), Colombo
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patent: 5138125 (1992-08-01), Salesses
patent: 5212362 (1993-05-01), Burden et al.
patent: 5245935 (1993-09-01), Fukuda

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