Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1976-12-01
1978-09-19
Miller, J D
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
200307, H02B 104, H01H 902
Patent
active
041158393
ABSTRACT:
A self-supporting modular switchboard panel formed from a plurality of rectangular frame elements with four solid side faces. The corner edges are beveled to provide a 45.degree. angle with the side faces so that when four frame elements are placed together to form a rectangular section, the center thereof forms a square which serves as a perch for retention clips and cover fasteners. Projections and grooves are disposed on opposed side faces for various retention possibilities.
REFERENCES:
patent: 3131829 (1964-05-01), Masser
patent: 3146505 (1964-09-01), Hansen
patent: 3737730 (1973-06-01), Mauell
patent: 3900712 (1975-08-01), Fukao
Hans Kreutzenbeck GmbH
Miller J D
Wong Peter S.
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