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| Number | Title | Issue Date |
| 7100701 | Fire-fighting device The invention relates to an apparatus for fire-fighting comprising a fire-extinguishing nozzle (4) connected to an extinguisher fluid supply (3) via a pipe (2) and comprising an alarm device (5) which delivers a warning signal at the begi... | 09/05/2006 |
| 6802277 | Fire escape light and alarm A emergency sign emits a non-electrical light and sounds a non-electrical alarm when an elevated level of heat is sensed, such heat from a fire, to provide a combined light and a sound alert signals. The light results from the mixing of a chemical compound having ch... | 10/12/2004 |
| 4102294 | Coffee pot perk alarm A stem in an alarm housing coaxially removably coupled to the lid of a coffee pot via a hole formed through the lid extends through the bore of a collar mounted in the housing and having a coaxial bore formed therethrough. A spherical member is coaxially ... | 07/25/1978 |
| 4098220 | Alarm 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 ... | 07/04/1978 |
| 3961597 | Liquefied gas alarm device In a temperature-sensitive alarm device incorporating a horn driven by a propellant which is stored in the liquid state in a pressure vessel, full utilization of the propellant for sounding the horn is obtained by incorporating into the pressure vessel a ... | 06/08/1976 |
| 3933120 | Alarm for deep freezer An apparatus for intermittently sounding an audible alarm when the temperature within a deep freezer rises to a predetermined level which is less than the freezing temperature of most food products so that steps can be taken to prevent the food products f... | 01/20/1976 |
