Back to results
US 4,480,211 AGranted
Flash lamp and circuitry for use with an incandescent light
AssigneeFederal Signal Corporation
InventorFredrick W. Eggers
Life of this patent
Estimating the term…
Abstract
A flash lamp in which a flash tube, transformer, capacitor and base are coupled together to form a unitary integral lamp. A portion of the flash tube, the transformer and capacitor may be encapsulated by a plotting compound. An electrical circuit consisting of a flash lamp and a conventional incandescent light is also provided for operation in parallel from a remotely located power supply.
Claims4
A flash lamp and incandescent lamp assembly which comprises:
- a flash lamp, said flash lamp having a flash tube with an anode, a cathode and a trigger electrode, said flash lamp being operable to rely on an external timing circuit for the timing of the flashes;
- a transformer and capacitor circuit coupled to said anode, cathode and trigger electrode;
- a multi-contact lamp base;
- means connecting said anode to one base contact and said cathode to another base contact;
- said flash tube, transformer and capacitor circuit and said base all forming a unitary, integral lamp without the need for any timing means within the lamp;
- an incandescent lamp;
- a power supply for supplying power to both said flash tube and said incandescent lamp, with the outlet of the power supply providing energy for both the incandescent lamp and the flash lamp;
- a diode having an anode and a cathode;
- means connecting said diode between said power supply outlet and said incandescent lamp.
6 more elements
A flash lamp and incandescent lamp assembly which comprises:
- a flash lamp, said flash lamp having a flash tube with an anode, a cathode and a trigger electrode, said flash lamp being operable to rely on an external timing circuit for the timing of the flashes;
- a transformer and capacitor circuit coupled to said anode, cathode and trigger electrode;
- a multi-contact lamp base;
- means connecting said anode to one base contact and said cathode to another base contact;
- said flash tube, transformer and capacitor circuit and said base all forming a unitary, integral lamp without the need for any timing means within the lamp;
- an incandescent lamp;
- a power supply for supplying power to both said flash tube and said incandescent lamp, with the outlet of the power supply providing energy for both the incandescent lamp and the flash lamp;
- an inductor;
- means connecting said inductor between said power supply outlet and said incandescent lamp.
6 more elements
Dependencies are inferred from the claim text.