Temperature insensitive filter for kinescope envelopes

Details Temperature insensitive filter for kinescope envelopes Temperature insensitive filter for kinescope envelopes

1980-08-13

1981-05-26

Lacey, David L.

Gas separation

With means securing or retaining separating media

Hinged or pivoted retainer or clamp on backing frame or in...

55507, 55509, 55525, 55529, 316 24, B01D 4610, H01J 938

Patent

active

042696160

ABSTRACT:
A filter for preventing the infiltration of contaminants into a kinescope envelope, includes a ring having a sloped surface to conform with the conical section of the kinescope neck. The ring also includes a support portion to which is affixed a non-oxidizable fluid permeative member. The ring is configured and dimensioned to rest against the inside surface of the conical neck section through a temperature range of approximately 20.degree. C. to 500.degree. C. so that fluid enters the envelope only through the permeative member. Specially configured clips remain resilient throughout the 20.degree. C. to 500.degree. C. temperature range to hold the filter in the conical section.

REFERENCES:
patent: 3560779 (1971-02-01), May
patent: 3589791 (1971-06-01), Kaneliopoulos
patent: 3679284 (1972-07-01), Thall
patent: 4122015 (1978-10-01), Oda et al.
RCA Technical Note No. 909, published Jun. 21, 1972. _

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