Automatic actuation of a general purpose hand extinguisher
AssigneeKidde Technologies, Inc.
InventorsMarcus Chaney, Patrick Lofvenholm
Life of this patent
Estimating the term…
Abstract
An automatic fire extinguisher valve assembly includes a valve body, a push rod disposed in the valve body, a poppet stem arranged perpendicular to the push rod and disposed in the valve body, a poppet-to-valve body seal coupled to the poppet stem and disposed in the valve body and a poppet return spring coupled to the poppet stem and disposed in the valve body, wherein the push rod is configured to engage the poppet stem to open the poppet-to-valve body seal.
Claims20
An automatic fire extinguisher (AFS) valve assembly, comprising:
- a valve body;
- a push rod disposed in the valve body;
- a poppet stem arranged perpendicular to a longitudinal axis of the push rod and disposed in the valve body;
- a poppet-to-valve body seal coupled to the poppet stem and disposed in the valve body;
- and
- a poppet return spring coupled to the poppet stem and disposed in the valve body, wherein the push rod is configured to engage the poppet stem to open the poppet-to-valve body seal.
An automatic fire extinguisher (AFE) system, comprising:
- a valve assembly;
- an actuator coupled to the valve assembly;
- a main outlet coupled to the valve assembly;
- a refill valve coupled to the valve assembly;
- and
- a cylinder coupled to the valve assembly,
- wherein the actuator is configured to place the valve assembly and the cylinder in fluid communication.
A method for operating an automatic fire extinguisher (AFE), the method comprising:
- detecting at least one of a fire or explosion in a confined space;
- activating an automatic fire extinguisher that includes:
- a valve assembly including:
- a valve body;
- an end stop disposed in the valve body;
- a push rod having an angled face and keyway disposed in the angled face, and disposed in the valve body;
- a poppet stem arranged perpendicular to the push rod and disposed in the valve body;
- a poppet-to-valve body seal coupled to the poppet stem and disposed in the valve body;
- and
- a poppet return spring coupled to the poppet stem and disposed in the valve body,
- wherein the push rod is configured to engage the poppet stem to open
- the poppet-to-valve body seal;
- an actuator coupled to the valve assembly;
- a main outlet coupled to the valve assembly;
- a refill valve coupled to the valve assembly;
- and
- a cylinder coupled to the valve assembly,
- wherein the actuator is configured to place the valve assembly and the cylinder in fluid communication in response to the at least one of the fire and explosion event;
- and
- securing the push rod.
Dependencies are inferred from the claim text.