A pressurized container fitted with a fusible plug and containing a suitable propellent with a vapor operated sounding alarm attached is constructed as a selfcontained sounding device that produces its sound when subjected to heat sufficient to cause the fusible plug to melt permitting the propellent to escape through the alarm attached to the container.
A fire extinguisher and alarm apparatus for a container having a rim and a cavity to retain combustible materials comprising a reservoir having a chamber for retaining a fire extinguishing fluid under gas pressure, a hollow nozzle for ejecting the fire extinguishing fluid, a temperature sensitive device which softens in the presence of heat, a device for mounting the reservoir on the container rim with the nozzle and temperature sensitive device located ajacent the container cavity, an alarm which issues an audible signal responsive to gas under pressure, and a valve responsive to softening of the temperature sensitive device for simultaneously connecting the fire extinguishing fluid in the reservoir to the nozzle for ejection therethrough into the container cavity and connecting the gas under pressure in the reservoir to the alarm to issue the audible signal.
A method for forming a threaded pedestal cup including providing a pedestal with an interior cavity having an inner surface, and a top portion that has a larger diameter than a bottom portion; inserting a non-threaded arbor into the interior cavity to engage the inner surface of the bottom portion; and engaging the outer surface with a threading tool, wherein the engaging includes deforming the metal into threads.
