|국가/구분||United States(US) Patent 등록|
|§371/§102 date||20100205 (20100205)|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 15|
The invention provides a combustion chamber (3) for launching a fireworks projectile which comprises a container (4) having top wall, bottom and side walls, wherein the top wall which comprises venting holes (1). The invention further provides a launching system', a method for launching a fireworks projectile, and a kit of parts comprising the combustion chamber (3) or launching system in accordance with the present invention and a propellant charge (7) for use in the combustion chamber (3).
1. A combustion chamber for launching a fireworks projectile which comprises: a container having top, bottom and side walls, the top wall comprising venting holes; anda perforatable disk positioned adjacent to the top wall closing the holes to gas flow from the container,wherein the perforatable disk is adapted to burst when a preset pressure is exceeded in the container to open the holes to vent gas out of the container andwherein the preset pressure corresponds to a pressure for an ignition stage for a propellant comprising a reduced smoke propellant m...