Abstract: A portable curling iron having a barrel to be heated, includes first and second burners which heat the barrel; a fuel supply cartridge which supplies fuel to the first and second burners, the cartridge including a fuel delivery valve which controls the flow of fuel from the cartridge; a plunger which applies a force to the valve in response to user actuation, to start the flow of fuel from the cartridge; a regulator assembly including a diaphragm which applies a reverse force to the plunger when the gas pressure exceeds a predetermined pressure, to maintain a substantially constant flow rate of fuel to the first and second burners; a valve stem through which the fuel travels from the cartridge to the second burner; a bimetallic element for applying a force to the valve stem to permit the fuel to pass to the second burner when the temperature is less than a predetermined start-up temperature and for removing such force when the predetermined start-up temperature is attained; and a spring which applies a revers

Abstract: A system working in conjunction with a regulator having a diaphragm for controlling gas pressure within a gas system, wherein there is provided a spring system to control the diaphragm of the regulator, maintaining the regulator at a constant pressure upon adjustment of the spring. There is further provided an actuator mechanism, operating in conjunction with a sensing means comprising a closed cylindrical container containing gas, such as, butane, propane, or the like where upon expansion of the gas due to ambient temperature would activate the actuator mechanism for reducing the spring pressure on the diaphragm, and thus the gas pressure within the system. Likewise, where there is to be a reduction in ambient temperature, the concommitant contraction of a gas within the sensing means, allows increased pressure on the diaphragm for providing increased gas pressure within the regulator.

Abstract: An automatic air-fuel ratio control apparatus for use in a combustion system of a type in which combustion air is preheated, which is so arranged that a push rod depresses one end portion of a rocking lever in accordance with temperature of preheated combustion air and consequently the other end portion of the rocking lever depresses a valve member to correct pressure of working fluid for controlling a flow of fuel so as to obtain best air-fuel ratio, and further that a bearing member for pivotally supporting the rocking lever can be diagonally shifted to change the air-fuel ratio.

Abstract: A diaphragm operated pressure regulator having jointly operable principal and auxiliary springs, the auxiliary spring being readily exchangeable to vary the control characteristic of the regulator without affecting the maximum and minimum pressure adjustments of the regulator.

Abstract: A pressure regulator has a diaphragm controlled valve and a temperature responsive means for adjusting the loading on the diaphragm to provide a pressure control from a maximum pressure to a minimum pressure in a modulating manner as the temperature changes. The temperature responsive means operates a lever for varying the spring loading on the diaphragm which is accomplished by a resilient biased pin and a C-shaped spring so that when the pin is lifted by the lever to reduce the force on the C spring, the C spring provides for a broadening of the force on the diaphragm and thus widening the modulation range of pressure for a given range in temperature.