Patent ID: 6776503
Filing Date: 2004-08-17
Classification: F21L,F21V,G01K

Abstract:
A three-in-one handheld lighting device comprising:a casing unit including an upper casing member having a top wall, an upper surrounding wall that extends downwardly from a periphery of said top wall and that cooperates with said top wall to define an upper receiving space, and a partition wall that divides said upper receiving space into a torch receiving chamber and an air chamber opposite to said torch receiving chamber in a longitudinal direction, said top wall being formed with an elongate switch receiving hole that is proximate to said partition wall and that extends in the longitudinal direction, said upper surrounding wall being formed with a lamp hole distal from said partition wall, and a lower casing member attached to a lower end of said upper surrounding wall of said upper casing member, and having a bottom wall and a lower surrounding wall that extends upwardly from a periphery of said bottom wall, said bottom wall having an outer wall surface formed with a thermometer receiving cavity; a torch unit disposed in said torch receiving chamber and including an operating member for controlling lighting of said torch unit, and including a press piece and an actuating piece that extends upwardly and integrally from said press piece and that protrudes from said casing unit through said switch receiving hole, said press piece having a bottom surface formed with a limiting groove extending in a direction parallel to said switch receiving hole, and a retaining groove formed above and in communication with said limiting groove, a light emitting diode lamp member disposed in said lamp hole, and having a head portion and a pair of spaced-apart first and second leg terminals connected to said head portion, said first leg terminal being positioned inside said limiting groove and having a protrusion that engages removably and slidably said retaining groove, an insulating member disposed between said first and second leg terminals, and having a connecting piece and two supporting pieces that extend respectively and integrally from opposite ends of said connecting piece and that abut respectively against said first and second leg terminals, a battery unit disposed between said supporting pieces, and having positive and negative terminals that are spaced respectively apart from said second and first leg terminals, and a cover body for covering said torch receiving chamber and for supporting said second leg terminal, said actuating piece of said operating member being disposed at a first position, wherein said protrusion is positioned in said retaining groove, said first and second leg terminals of said lamp member are spaced respectively apart from said negative and positive terminals of said battery unit so that said torch unit is in an off state, said actuating piece being movable along said switch receiving hole to a second position, wherein said protrusion is removed from said retaining groove so that said press piece pushes against said first leg terminal to contact electrically said negative terminal of said battery unit such that said positive terminal is in electrical contact with said second leg terminal of said lamp member, thereby putting said torch unit in an on state; a whistle unit including a semi-circular air inlet formed in said upper surrounding wall and disposed opposite to said lamp hole in the longitudinal direction, a curved air resonant seat cooperating with said air inlet to form a resonant space in said air chamber, and an air outlet provided in said top wall to permit releasing of air that is blown into said air chamber, thereby generating a whistling sound output; and a thermometer unit mounted securely in said thermometer receiving cavity, and including a capillary rod secured in said thermometer receiving cavity and a graduated chart provided on said outer wall surface of said lower casing member adjacent to said thermometer receiving cavity.