Flashlamp article having internally located combustible member
AssigneeGTE Sylvania Incorporated
InventorsPaul M. Marecek, John W. Shaffer
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Abstract
There is disclosed a multi-flashlamp article capable of providing both highly intense audible and visual signals. The article is ideally suited for use as an intrusion alarm and includes a combustible member within the assembly's light-transmittable housing. A prestressed spring actuates the combustible by deforming a tubular primer having a quantity of fulminating material therein. This deflagrating material ignites a second quantity of fulminating material within the combustible's container to effect a suitable audible signal.
Claims15
An article for producing highly intense audible and visual signals, said article comprising:
- a housing defining a chamber therein, said housing including a base portion and a cover portion having at least one opening therein, at least part of said cover portion being light-transmittable;
- at least one flashlamp positioned within said chamber of said housing, said flashlamp providing a highly intense visual signal in response to activation thereof, said visual signal passing through said light-transmittable part of said cover portion;
- at least one combustible member positioned within said chamber of said housing, said combustible member providing a highly intense audible signal in response to actuation thereof, said audible alarm passing through said opening within said cover portion of said housing;
- and
- means for actuating said combustible member, said means located within said chamber and adjacent said combustible member.
A percussively-ignitable combustible member for providing a highly intensive audible signal in response to actuation thereof, said combustible member comprising:
- a glass container having an open end;
- sealing means for sealing said open end to define a cavity within said container;
- said sealing means comprising a thin cup-shaped member sealed about the outer periphery of said glass container;
- a hollow, deformable member projecting from said container and including an elongated anvil member positioned therein;
- and
- first and second quantities of fulminating material, said second quantity being percussively-ignitable and located within said deformable member on said anvil member, said first quantity of the same composition as said second quantity and located within said cavity of said container and spaced apart from said second quantity, said first quantity of material occupying only a minor portion of said cavity, said second quantity igniting said first quantity in response to deformation of said hollow member to cause instantaneous removal of said sealing means and emission of said highly intense audible signal.
Dependencies are inferred from the claim text.