Photoflash unit
AssigneeEastman Kodak Company
InventorWarren Green
Life of this patent
Estimating the term…
Abstract
A photoflash unit includes a housing with an internal chamber containing a charge material. The housing's base has an opening. A primer is placed over or proximate to this opening. An anvil is placed over the material and a burn-away sheet is placed over the anvil. The burn-away sheet is sealed to the base and holds the anvil in place. When the anvil is struck percussively through the burn-away sheet, the primer ignites combustible material through the opening in the back wall. The burn-away sheet burns away, allowing the photoflash unit to vent to the rear.
Claims16
A photoflash unit comprising:
- a housing forming a housing chamber, said housing comprising a base having an opening therethrough;
- a combustible material located within said housing chamber;
- a primer secured to said base and proximate to said opening;
- an anvil having at least a portion in close proximity to said primer;
- and
- a burn-away sheet attached to said housing and covering said primer and said anvil.
A photoflash unit comprising:
- (i) a sealed, light-transmitting housing, said housing comprising a base having an opening therethrough;
- (ii) a combustible material located within said housing;
- (iii) a primer secured to said base and closing said opening;
- (iv) an anvil disposed over said primer, the anvil having at least a portion overlying and in close proximity to said primer;
- and
- (v) a burn-away sheet attached to said housing and covering said primer and said anvil.
A photoflash unit comprising:
- a primer, an anvil located proximate to said primer, and a burn-away sheet located proximate to said primer and said anvil.
Dependencies are inferred from the claim text.