Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1976-04-08
1978-09-19
Truhe, J. V.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
52 67, 52 798, H05K 900
Patent
active
041156560
ABSTRACT:
A shielded passageway for use between electromagnetic interference shielded shelters includes two or more rigid telescoping members in a loose fit with EMI shielding material between the overlapping sections. In one embodiment a truncated toroidally-shaped rolling diaphragm shield of wire mesh is interposed between the overlapping sections to permit relative movement therebetween while maintaining or providing EMI shielding. In another embodiment the passageway is provided with an articulated stable walkway attached at either end to respective passageway sections for permitting relative movement between the overlapped passageway sections. In a further embodiment a tongue-and-groove system is provided for securing a passageway section to an adjacent shelter which involves first hooking the lower lip of the passageway onto a mating groove in the shelter and then pulling the top portion of the passageway towards the shelter, with all bolting and securing connections to be made solely within the confines of the shelter where the connecting apparatus is readily accessible.
REFERENCES:
patent: 979652 (1910-12-01), Church
patent: 2716782 (1955-09-01), Paulsen
patent: 2840866 (1958-07-01), Paulsen
patent: 2841832 (1958-07-01), Couse et al.
patent: 3110753 (1963-11-01), Witort
patent: 3350497 (1967-10-01), Weaver, Jr. et al.
Etlinger Louis
Sanders Associates Inc.
Tendler Robert K.
Tone D. A.
Truhe J. V.
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