Initiator for stovetop fire extinguisher
AssigneeWilliams-Pyro, Inc.
InventorsMichael R. Stevens, Preston N. Weintraub
Life of this patent
Estimating the term…
Abstract
A fire extinguisher has a container filled with a fire extinguisher material. One wall of the container has tear-open segments that breach the container when opened and allow the fire extinguisher material to exit the container. An initiator forces open the tear-open segments. The initiator has a cup that is coupled to the container wall. The cup contains combustible material and is closed by a cap. The cap is bonded to the cup to form a strong initiator housing. A fuse exits the initiator to the outside of the container wall.
Claims15
A fire extinguisher, comprising:
- a) a container forming a closed cavity, the container having a wall;
- b) a fire extinguishing powder located in the cavity;
- c) an initiator for breaching the container wall and allowing the fire extinguishing powder to escape the container;
- d) the initiator comprising a cup and a cap, the cup having a base wall that is integral to sidewalls of the initiator cup, and the integral base wall of the cup is coupled to the container wall, wherein a washer is interposed between the base wall of the cup and the container wall, the cap being bonded to the cup;
- e) the cup forming a volume that contains a combustible material adjacent to the base wall;
- and
- f) a fuse extends from the cup to an exterior of the container wall.
A method of assembling a fire extinguisher having a container with a wall, the wall structured and arranged to be breached, comprising the steps of:
- a) coupling an initiator cup to the container wall, wherein an integral base wall of the initiator cup is parallel with the container wall, a washer is interposed between the base wall of the initiator cup and the container wall, and the integral base wall of the initiator cup is clamped to the container wall via respective parallel surfaces;
- b) locating combustible material in the cup;
- c) then closing the cup with a cap and joining the cap to the cup;
- d) adding fire extinguishing powder to the container;
- and
- e) closing the container by coupling the container wall to sides of the container.
A fire extinguisher, comprising:
- a container forming a closed cavity, the container having a wall;
- a fire extinguishing powder located in the cavity;
- an initiator for breaching the container wall and allowing the fires extinguishing powder to escape the container;
- the initiator comprising a cup and a cap, the cup having a bottom wall that is integral to a cylinder sidewall of the cup, and is coupled to the container wall, wherein the cap has three stepped diameters, a first diameter narrower than an inner diameter of the initiator cup, a second diameter intermediate to the first diameter, and a third outermost diameter, which has a width near the outer diameter of the cup, and wherein the cap is bonded to the cup;
- and
- the cup forming a volume that contains a combustible material adjacent to the bottom wall;
- and
- a fuse extends from the cup to an exterior of the container wall.
Dependencies are inferred from the claim text.