Abstract: A bladder, suitably formed of silicone rubber and molded into a cylindrical shape, is provided internally with a deforming spring. The resultant unit serves as a delivery stabilizer for a ventilation shaft without loss of elasticity of the bladder.

Abstract: A three-port thermally responsive valve for alternately valving an intermediate fluid port with adjacent upper and lower fluid ports. A single valve member is movably contained within a housing fluid passageway and spring-biased in a first position so that a sealing surface at each end of the valve member is respectively engageable with and spaced from corresponding valve sealing surfaces in the fluid passageway. The sealing surfaces on the valve member are spaced with respect to the valve sealing surfaces in the housing fluid passageway to maintain isolation of the upper and lower fluid ports until valving of the intermediate fluid port with either the upper or lower fluid port is completed. When predetermined temperatures are encountered, a thermally responsive actuator connected to the valve member by a rod overcomes the biasing force generated by the spring and moves the valve member to the second valved position.

Abstract: An improved thermally actuated valve assembly having a double throw feature comprises three ports in which two passages are provided among these three ports; one passage connecting ports one and two and the other passage connecting ports two and three. At a predetermined temperature a snap-acting bimetallic member causes a change in communication from one of the passages to the other.

Abstract: A mixer unit with thermostat controlled valves for mixing hot and cold liquid includes a housing with valves for supplying the hot and cold liquid to the housing. The housing includes a mixing chamber which terminates in a discharge spout. A yoke is rockably mounted in the housing and the ends are arranged to make contact with and actuate the valves for the hot and cold liquid. A bimetallic spiral control thermostat is carried in the discharge spout and cooperates with the yoke for causing rocking movement of the yoke when the thermostat spirally moves in response to regulation of the thermostat. A device is carried at the outer end of the discharge spout for adjusting the position of the spiral of the thermostat about its axis of symmetry and thereby regulating the desired temperature of the mixed liquid.

Abstract: A thermostatically responsive valve is provided which comprises a thermal element assembled with a housing to sense the ambient temperature, a plurality of responsive valves arranged around the power member of the thermal element within an interior of the housing to control the vacuum applied to pneumatically operated devices, and a spring-loaded movable member separably engaged with the power member within the interior of the housing to operate the responsive valves in response to the movement of the power member.

Abstract: A thermally responsive fluid control valve device which is particularly adapted for control of an air operable clutch. The valve device includes a housing which is adapted to be positioned adjacent a conduit which is a part of a system through which coolant fluid flows in a cooling system of an internal combustion engine. The valve device includes a thermally responsive actuator member which is adapted to be positioned within a conduit within which coolant fluid flows. The thermally responsive actuator member has a portion operable upon a movable valve element which is within the housing and which controls flow of air through the housing. The movable valve element is also operable by air at suitable pressures within the housing.

Abstract: A water mixer with a hot and a cold water inlet and one outlet, comprising a longitudinal housing with a longitudinal control reed swingable to throttle one inlet and widen the other one at the same time and vice versa.