Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Plural periodic switches or multiple contact periodic switch
Patent
1976-10-18
1978-09-12
Smith, Alfred E.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Plural periodic switches or multiple contact periodic switch
315 82, H05B 3702, B60Q 102
Patent
active
041140710
ABSTRACT:
A system is disclosed and claimed herein for modulating the intensity of a light particularly a light used on a vehicle, boat, or electrically connected between a source of power and an incandescent lamp to be modulated and includes a first timer switch means to cut the light on and off according to a periodic rate, a second timer switch means in parallel with the first timer switch means and being operated at a faster switch cycle such that the lamp does not go completely out whereby the filaments remain hot at all times, and a power interrupter means that is positioned between a source of power and the incandescent lamp, and is connected to the first and second timer switch means and operated thereby to modulate intensity of the lamp without complete loss of intensity.
REFERENCES:
patent: 2918607 (1959-12-01), Peepas et al.
patent: 3390304 (1968-06-01), Scott et al.
Thrower, Jr. Herbert T.
Wasness Donald S.
Manning, Jr,. Wellington M.
Smith Alfred E.
Thrower, Jr. Herbert T.
Wilburn, Jr. Luke J.
Wise Robert E.
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