Apparatus for the destruction of microfiches and the like

Details Apparatus for the destruction of microfiches and the like Apparatus for the destruction of microfiches and the like

1979-04-23

1982-10-19

Roskoski, Bernard

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219433, 219415, 219386, 241 65, H05B 300

Patent

active

043552277

ABSTRACT:
Microfiches to be destroyed by heat treatment are placed within a disposable tube fitted with a sealing plug, then baked to a sufficient temperature to cause melting and discarded. The apparatus comprises an electric heating resistor and a tubular heating jacket for receiving the disposable tube, the sealing plug being forcibly engaged in the tube by means of a cap which is screwed down by hand. All negative sheets and documents having a photosensitive surface such as microfiches are destroyed economically without any contaminating waste products.

REFERENCES:
patent: 371842 (1887-10-01), Hewes
patent: 1530416 (1925-03-01), Saeki
patent: 1581259 (1926-04-01), Wiechert et al.
patent: 1661354 (1928-03-01), Ayre
patent: 1762171 (1930-06-01), Goldsmith
patent: 2281235 (1942-04-01), Cooper
patent: 2595411 (1952-05-01), Ripoche
patent: 2640907 (1953-06-01), Morey
patent: 3115986 (1963-12-01), Groff
patent: 3351741 (1967-11-01), Shelley

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