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Signalling device

  • US 3,233,544 A
  • Filed: 11/14/1963
  • Issued: 02/08/1966
  • Est. Priority Date: 11/14/1963
  • Status: Expired due to Term
First Claim
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1. A NOVELTY DEVICE WHICH COMPRISES A GENERALLY SPHERICAL CENTRAL CORE OF DETONATOR MATERIAL, SAID CENTRAL CORE OF DETONATOR MATERIAL BEING FORMED BY A QUANTITY OF FINELY DIVIDED GRANULAR MATERIAL THAT IS COATED WITH A FRICTION RESPONSIVE IGNITER SUBSTANCE AND THAT IS CONFINED IN SAID SPHERICAL CONFIGURATION BY A THIN LAYER OF A DESTRUCTIBLE MEDIUM, A PLURALITY OF OXIDIZABLE PELLETS, SAID OXIDIZABLE PELLETS BEING DISPOSED SUBSTANTIALLY EVENLY ABOUT SAID CORE SO AS TO DEFINE A LAYER OF GENERALLY UNIFORM THICKNESS THAT IS CONCENTRIC WITH AND COMPLETELY SURROUNDS SAID CORE, SAID PELLETS BEING FORMED OF AN OXIDIZABLE MEDIUM THAT IS IGNITED BY SAID CENTRAL CORE AFTER SAID CORE HAS BEEN DETONATED TO YIELD A CONTROLLED OXIDATION PROCESS, A THIN OUTER CONFINING SHELL SURROUNDING AND CONFINING SAID LAYER, SAID SHELL BEING PROPORTIONED TO WITHSTAND A SUBSTANTIAL PERCUSSIVE FORCE THAT EFFECTS THE CREATION OF FRICTION IN AND THE IGNITION OF SAID CONFINED CENTRAL CORE AND BEING SELECTIVELY APERTURED TO ACCOMMODATE THE CONTROLLED EMISSION OF THE OXIDATION PRODUCTS YIELDED BY SAID LAYER OF PELLETS AFTER THE OXIDATION THEREOF IS INITIATED BY THE DETONATION OF SAID CENTRAL CORE, SAID SHELL BEING FURTHER CONSTRUCTED SO AS TO WITHSTAND THE EFFECTS OF THE OXIDATION OF SAID LAYER WITHOUT RUPTURING, AND A DESTRUCTABLE COVERING SURROUNDING SAID OUTER SHELL SO AS TO CONCEAL SAID APERTURES PRIOR TO DETONATION OF SAID GENERALLY SPHERICAL CORE AND RESPONSIVE TO THE OXIDATION PROCESS GENERATED IN SAID LAYER SO THAT SAID APERTURES ARE OPENED TO ALLOW THE EMISSION OF THE OXIDATION PRODUCTS PRODUCED BY SAID LAYER.

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