Electricity: electrical systems and devices – Electric charging of objects or materials
Patent
1990-08-30
1992-08-11
Pellinen, A. D.
Electricity: electrical systems and devices
Electric charging of objects or materials
29179, 29825, 2003021, H01H 904, H01H 1100, G04D 300
Patent
active
051385180
ABSTRACT:
A housing (18) for an electronic device comprises a chamber (16) having an interior (14) for receiving electronic circuitry and a detachable contaminant barrier (12) generally contouring the interior (14) of the chamber (16) for preventing foreign particles from entering the chamber (16), for removing existing foreign particles in the chamber (16), and for aiding in the handling of the housing (18) during assembly. The detachable contaminant barrier (12) includes a first protrusion (22) for manipulating said contaminant barrier (12) and said housing (18) and a second protrusion (24) for removing said contaminant barrier (12) from said housing (18).
REFERENCES:
patent: 3902789 (1975-09-01), Gerritsma et al.
patent: 4243329 (1981-01-01), Nakayama
patent: 4250572 (1981-02-01), Yoshida
patent: 4459032 (1984-07-01), Musy
patent: 4562595 (1985-12-01), Bauer et al.
patent: 4800543 (1989-01-01), Lyndon-James et al.
patent: 5010777 (1991-04-01), Yehl et al.
Cheraso John P.
Goldenberg Michael P.
Schmertmann Neil J.
Berry Thomas G.
Elms Richard T.
Koch William E.
Motorola Inc.
Pellinen A. D.
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