Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1991-05-06
1992-12-01
Kozma, Thomas J.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
174 522, 174DIG2, 336 96, 336107, 361357, H05K 500, H01F 2704
Patent
active
051684225
ABSTRACT:
A neon or luminous tube transformer is provided having a primary coil located between a pair of secondary coils. Each of the coils comprises a plurality of windings and is associated with a laminated magnetic core. A secondary terminal extends vertically from each secondary coil and is provided with a threaded upper end. The primary and secondary coils are disposed in a housing defining an enclosed first compartment and the compartment is filled with asphalt to a level so that only the upwardly projecting secondary terminals are exposed. A pair of primary input conductors are connected to the transformer primary coil and pass through one of the walls defining the first compartment into a smaller second compartment adjacent the first compartment. One wall of the second compartment is provided with a knockout to permit the conductors extending from a low voltage power supply to be connected to the primary input conductors within the housing thereby allowing the primary coil to be energized. At least one wall of the first compartment is provided with a knockout to permit conductors extending from the transformer load to be connected to the secondary terminals within the first compartment. A plastic threaded cap is associated with each threaded secondary terminal to permit the conductors extending to the transformer load to be removably secured to the secondary terminal and to inhibit accidental disengagement thereof.
REFERENCES:
patent: 1965437 (1934-07-01), Staehle
patent: 2055624 (1936-09-01), Dickson
patent: 2298336 (1942-10-01), Babb
patent: 2359186 (1944-09-01), Zelt
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patent: 2702378 (1955-02-01), Talty
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patent: 3030597 (1962-04-01), Piaia, Jr. et al.
Catalog: Plastic Sign Ballasts and Luminous Tube Sign Transformers.
Catalog: Ballasts and Transformers for Dependable and Long-Lasting Outdoor Lighting.
Book: Neon Techniques and Handling.
Allanson, Division of Jannock Limited
Kozma Thomas J.
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