Prime-mover dynamo plants – Alternating current – rotary field and armature
Patent
1979-05-04
1981-02-17
Rubinson, Gene Z.
Prime-mover dynamo plants
Alternating current, rotary field and armature
H01H 926
Patent
active
042517346
ABSTRACT:
A report cover with a display device comprising at least two sheets hingedly connected for folding as an inside cover and a third sheet hingedly connected to one of said aforementioned sheets and acting as the bottom cover, said first two mentioned sheets when folded having substantially coextensive confronting surfaces, printed circuits on the confronting surfaces embodying contact areas engageable by pressing the sheets together to complete a current path in the circuitry, cell means on the confronting face of the one sheet, terminal means on the confronting face of the other sheet, the poles of said cell means being engageable with said terminal means by pressing the sheets together to insert a source of current in the circuitry, a light emitting diode connected in the circuitry adapted to be energized by completion of a current path by pressing a pair of confronting contact areas together, means on the outer face of the one sheet indicative of the location poles and the contact areas at the inner side of the sheet to enable pressing the poles into engagement with the terminals to supply the circuitry with an energy source and to press a pair of contact areas together to illuminate the diode and a non-conductive barrier sheet connection to one of the sheets for disposition between the sheets, said barrier sheet containing openings corresponding in position to the pairs of confronting contact areas, poles and terminals.
REFERENCES:
patent: 3860771 (1975-01-01), Lynn et al.
patent: 4028509 (1977-06-01), Zurcher
patent: 4066851 (1978-01-01), White et al.
patent: 4090045 (1978-05-01), Marsh
patent: 4096577 (1978-06-01), Ferber et al.
patent: 4145584 (1979-03-01), Otterlei
Mayer Carl P.
Rothenberg Robert A.
Bronstein Sewall P.
Brown Donald
Chomerics, Inc.
Gammons Robert T.
Rebsch D. L.
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