LED Research Papers - Academia.edu (original) (raw)

In its simplest embodiment, the " Util-Lite " is a utility model, an exclusive design incorporating a flashlight on one end as well as a fire lighter on the tail end with a protection cap cover ending in a key fob for a keychain or lanyard. Designed as an outdoor camping, hiking fire lighter and for emergency use. The " Util-Lite " has many other embodiments such as the addition of a laser light/s, other light sources or even an electric plasma generated spark/arc that can also be used for self-defense. The electric current in this case is designed to be very small and pose no harm to a human body. In its simplest embodiment, the " Util-Lite " includes a housing (3), made of either a military grade anodized aluminum alloy casing, plastic or any other metal alloy that can resist rust and corrosion and is not limited to copper, brass, stainless steel, titanium, et cetera. On one end of the housing (3) there is a battery receiving region (7), an active electrical circuit (14), and a light source (13). The active electrical circuit (14) uses energy from a battery or batteries received in the battery receiving region of the flashlight (7) to power the light source (13). The electrical circuitry of the flashlight (14) is energy limited within to provide optimum light source life, energy saving performance as well making the flashlight intrinsically safe for use in hazardous locations. The other end of the " Util-Lite " housing (1) contains the fire lighter region (2) of the flashlight housing that contains a flint and wheel sparker (4), a wick (5) that is embedded within a spongy material (2) designed to absorb a standard liquid lighter fluid compound such as but not limited to a 30% Coleman white gas (Hydrotreated Light Naphtha) mixed with a 70% light Hydrotreated Petroleum Distillate or other kerosene alternative. Ideally the entire housing (3) of the " Util-Lite " would be IPX6 Ingress Protection-'Water resistant' grade, with the addition of gaskets (17, 18, 19 and 20) that form a mechanical seal filling up the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. The gasket can be made from rubber, silicone, neoprene, nitrile rubber, fiberglass, polytetrafluoroethylene (PTFE or Teflon) or a plastic polymer (such as polychlorotrifluoroethylene). These gaskets (17, 18, 19 and 20) are in between connecting thread sections and mechanically segregate the firelighter housing (2) from the flashlight housing (3) with gasket (18), so that there is no leakage of lighter fluid to the battery receiving region (7). Another gasket (17) on the cap end (1) of the firelighter section (2) prevents leakage to the external environment and allows the " Util-Lite " to be carried in your pants pocket or stored with camping equipment for a long period without the lighter fluid drying out. There is also an ingress protection gasket (19) between the flashlight housing (3) and the reflector/ light source housing