Abstract: A two-part traffic channelizing device including a recycled rubber base (or other suitable material) having a slot with a textured interior surface extending therethrough and a vertically upwardly extending vertical member coated with reflective material and releasably inserted inside the slot, forming a friction/compression fit between the vertical member and the textured interior surface of the slot. The vertical member is held in position in the slot by friction/compression alone. Upon impact, the vertical member pops out of the slot, and the device is reassembled simply by reinserting the vertical member into the slot; no replacement parts are necessary, except for accessory items such as lighting devices or power sources.

Abstract: A circuit is disclosed which extends the useful life of a battery by regulating the power supplied from the battery to a load, such as a highway warning lamp, as the battery voltage decreases from age and use. The circuit supplies current from the battery to the load over periods of time which are automatically varied in length according to the battery terminal voltage, thereby maintaining the average power consumption at a fixed level throughout the useful life of the battery.