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| Number | Title | Issue Date |
| 4186432 | Lamp for use in subterranean applications A lamp for use in subterranean galleries such as mines in which the cold-cathode discharge tube is received in a housing which, in turn, is removably mounted in a receptacle and is held in place by a ring clamping a flange of the housing against a flange ... | 01/29/1980 |
| 4152755 | Portable magnetically actuatable flashlight A portable magnetically actuatable flashlight that includes a hermetically sealed housing that has the light transmitting lens formed as an integral part thereof, and the housing capable of having an electric circuit defining cartridge on which the batter... | 05/01/1979 |
| 4144557 | EL flashlight A flat, disc-shaped EL lamp is removably mounted in the head of a conventional flashlight casing between the usual transparent lens and the bowl-shaped metal housing, which usually forms the reflector for a flashlight bulb. In this case, however, a conver... | 03/13/1979 |
| 4114187 | Diver's flashlight A diver's flashlight having a unitary case with a closed transparent end for light transmission, the other end being sealed by a threaded plug which also serves as a switch. A halogen bulb is mounted in a reflector immediately inside the transparent end a... | 09/12/1978 |
| 4109405 | Capsule lamp as a fishing tackle A capsule lamp as a fishing tackle in which an electric circuit connecting a light bulb and a battery across a switching mechanism is opened or closed in response to water pressure acting on a diaphragm adapted to be deformed by the water pressure into pr... | 08/29/1978 |
| 4070784 | Electric fishing float An electric fishing float in which a cell used as a power source is an elongated cylindrical cell having an electrode axially upwardly extended from the top of the cell and with the shell of the cell serving as another or opposite electrode in order to tu... | 01/31/1978 |
| 4053758 | Underwater swimming pool illumination systems An underwater swimming pool illumination system includes a lighting assembly having a lamp unit installed within its rear portion in a waterproof enclosure; and the lamp is connected to a low voltage battery. The waterproof enclosure may be at the bottom ... | 10/11/1977 |
| 3978330 | Battery hand lamp A battery hand lamp for use where high luminosity is desirable and where a damp or wet environment or water is encountered, as is the case on boats, in fighting fires or in speleology or the like. The battery hand lamp consists of two units, namely a supp... | 08/31/1976 |
