Abstract: Embodiments of the present disclosure generally relate to heat transferring apparatuses and methods. The apparatus and methods utilize the Joule-Thomson effect to remove heat from a heat source to facilitate cooling of the heat source. In one example, an apparatus receives heat from an object to be cooled. The received heat is used to pressurize a fluid. The pressurized fluid is depressurized through a venturi using vapor pressure as a driving force, thus cooling the fluid.

Abstract: A non-electrical power operated sensor determining the position and movement of a first object in relation to a second object includes a valve on the first object. The valve has a housing and a cavity. A first sound device is mounted on one side of the housing and connected to the cavity. A second sound device is mounted on the other side of the housing and connected to the cavity. A piston connects the second object and the valve. The piston includes a push rod extending from one side of the plug body and the push rod being moved one way or another way causes one sound or another sound to be made. The disclosure also provides a monitoring system listening for the one sound or for the other sound, the system being able to instantly communicate with an electronic device of a user.

Abstract: An apparatus to suppress a localized fire may include a pressurized tank of fire suppressant and a valve coupled to the tank. In case of a fire, a pneumatic fire sensor may open the valve to release the fire suppressant.

Abstract: 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 chemiluminescent properties. The light illuminates indicia located on the face plate of the sign. The alarm is sounded by releasing compressed gas from a cartridge and directing the released gas through a whistle.

Abstract: 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 affixed to the stem at an intermediate point thereof and has a diameter greater than the diameter of the bore of the collar and rests in such bore whereby the stem is freely rockable in the collar. A hollow shell is mounted on the stem at the upper end thereof and has a rattle member encased therein which produces an alarm sound whenever it strikes the shell. An actuating member is mounted on the stem at the lower end thereof and is positioned in close proximity with the top of the perforated tube of the coffee pot. Thus, when the coffee perks, water flows into the top of the tube of the coffee pot and strikes the actuating member to produce an oscillatory motion of the stem about the spherical member thereof.

Abstract: 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.

Abstract: 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 heat reservoir, such as a sealed bag of water, in order to release heat for maintaining rapid vaporization of the propellant.

Abstract: 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 from thawing. The apparatus includes a remote bulb element which intermittently opens and closes a container of liquefied gas which is permitted to expand and sound an alarm when the freezer malfunctions.