Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1987-04-28
1988-08-23
Tolin, G. P.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
138173, 220 72, H05K 720
Patent
active
047665173
ABSTRACT:
An avionic tray adapted to be made in several width and sizes including standard ATR widths is made from aluminum alloy sheet which had beads or corrugations to compensate for decreased overall width of the sheet. Typically, the sheet is made from 0.040" thick 6061-T6 aluminum alloy, and the beads or corrugations increase the effective apparent thickness of the sheet to the usual tray thickness of 0.063". In a bottom section of the tray the beads run substantially parallel with the longitudinal axis of the tray, but do not extend to a deformed area where a metering plate is mounted. In side rails of the tray one bead runs parallel with the longitudinal axis, and the rest of the beads are disposed parallel with an edge of the side rail which is itself at an acute angle to the longitudinal axis of the tray. Jig pins provided in the side rails of the tray comprise extrusions of the material of the side rail which surround punched-out holes in the material.
REFERENCES:
patent: 985738 (1911-02-01), Foster
patent: 3640141 (1972-02-01), Hollingsead
patent: 3688803 (1972-09-01), Pavia
patent: 3710476 (1973-01-01), Hollingsead
patent: 3771023 (1973-11-01), Hollingsead
patent: 4044515 (1977-08-01), Hollingsead
patent: 4458296 (1984-07-01), Bryant
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