Photoflash lamp having expandable burning volume
AssigneeGeneral Electric Company
InventorsPeter D. Johnson, Charles E. Jones
Life of this patent
Estimating the term…
Abstract
A photoflash lamp of generally flat configuration for providing compact containment of metal fuel and solid oxidant includes a plate member having a recess therein. An expandable sheet member is formed over, and affixed to the plate surface adjacent to the recess for tightly containing a quantity of combustible material and solid oxidant within the recess. Ignition of the combustible material generates gaseous oxygen and reaction products which expands the sheet member away from the plate surface so as to provide an expandable volume to accommodate the burning oxygen-fuel mixture and to provide increased surface area for permitting maximum light emission.
Claims14
A photoflash lamp for providing an expandable volume to accommodate oxygen and reaction products generated upon combustion of a combustible mixture contained therein, comprising:
- (a) plate means having a substantially flat surface on each side and one of said sides having a recess medially disposed therein;
- (b) a combustible mixture substantially filling said recess;
- (c) primer means overlying said plate surface and centrally disposed in the opening of said recess for igniting said combustible mixture;
- and
- (d) transparent, substantially flat plate expandable sealing means formed over said recess and affixed to said plate means surface for confining said combustible mixture within said recess, said sealing means expanding during combustion of said combustible mixture so as to define a volume between said sealing means and said plate means greater than the volume of said recess.
A photoflash lamp for providing a preselected burning volume to accommodate gases generated by the combustion of a combustible mixture contained therein comprising:
- (a) a plate member having a recess medially disposed in one of said surfaces;
- (b) combustible mixture substantially filling the volume of said recess;
- (c) primer means overlying said plate means surface and centrally disposed in the opening of said recess for igniting said combustible mixture contained within said recess;
- (d) transparent, substantially flat plate shield means affixed to said one surface adjacent to said recess opening for confining said combustible mixture in said recess;
- and
- (e) a rigid, hollow, transparent enclosure joined to said surface of said plate member adjacent to said recess opening, said enclosure containing a volume sufficient to accommodate the oxygen and reaction produced after ignition generated by the combustion of the combustible mixture contained within said recess.
Dependencies are inferred from the claim text.