Abstract: Valve seat structure for an automotive thermostatic fluid control valve device. The valve seat structure comprises a rigid fluid flow control member which includes a cylindrical wall which forms a fluid flow passage and an annular base which encompasses the cylindrical wall. An elastomeric sealing member or engagement member resiliently encompasses the cylindrical wall and is clamped between two portions of a fluid conduit to position the valve seat structure within the fluid conduit. The elastomeric sealing member is also engageable by a movable valve member to control fluid flow through the fluid flow passage. The cylindrical wall extends beyond the elastomeric sealing member and protects the elastomeric sealing member against the forces of fluid flow.

Abstract: Fail-safe oil flow control apparatus of this invention includes a thermally responsive actuator for operation of a valve member to control oil flow through a heat exchanger in accordance with the oil temperature conditions which exist. The apparatus also includes resilient members which operate to control operation of the valve member in accordance with the oil pressure conditions which exist. The apparatus also includes a fusible body which melts and permits operation of the valve member when excessive temperatures exist in the apparatus.

Abstract: A thermally responsive fluid control valve device which is particularly adapted to be mounted in the coolant system of an automotive type engine. The thermally responsive fluid control valve device includes a frame member which consists of two sheet metal members attached together. One of the sheet metal members comprises a single-piece sheet metal member which includes a plurality of leg portions and a plurality of foot portions connected by a single ring portion, all of the portions being integral. The foot portions are adapted to engage a surface within the coolant system. The frame member also has another engagement surface, which with the foot portions, position the fluid control valve device within the coolant system.

Abstract: Diesel fuel control apparatus in a system in which fuel flows to a diesel engine from a fuel tank. A portion of the fuel is consumed by the diesel engine. Excess fuel flows from the diesel engine in a heated condition. The excess fuel has air entrained therein. A diesel fuel filter housing is attached to the diesel fuel control apparatus and is in fluid communication therewith. The diesel fuel control apparatus receives heated fuel and air entrained therein and supplies heated fuel without air therein to mix with fuel flowing from the fuel tank to the fuel filter housing.

Abstract: Fuel control mechanism, particularly adapted for control of diesel fuel flow to a diesel engine. The fuel control mechanism includes a housing provided with a plurality of flow passages therethrough. The fuel control mechanism includes a thermally responsive valve member which controls flow of fuel from a source thereof to the diesel engine and which controls the mixing of fuel from a source thereof with unused fuel which flows from the diesel engine. The fuel control mechanism also includes a valve member which controls flow of gas which flows from the diesel engine with the unused fuel.

Abstract: A thermally responsive actuator device which includes an extending tubular coil temperature sensing portion. The tubular coil contains a thermally responsive expansible-contractible material which operates upon an actuator member. Thus, the thermally responsive material accurately and rapidly senses ambient or air mass flow temperature conditions for operation of the actuator member.

Abstract: A thermally responsive valve device having non-linear flow characteristics. The valve device is particularly adapted to control fluid flow in an automotive coolant system. The thermally responsive valve device includes movable and stationary valve structure. A movable valve member is movable to create a flow passage and to adjust the open area thereof, but movement of the movable valve member provides a non-linear relationship between the area of the flow passage created and the distance of travel of the movable valve member. The stationary valve member is provided with a valve seat having a sloping encompassng wall so that with slight opening movement of the movable closure member a very limited volume of fluid flow is permitted. As the movable valve member continues to move in an opening direction, the non-linear relationship between the distance of movement of the movable valve member and the flow area created continues. The fluid flow gradually increases until a specific maximum flow rate is achieved.

Abstract: An automotive thermostatic valve which comprises a stationary portion and a movable portion. The stationary portion comprises a rigid frame member which includes a central portion and an outer annular portion. The outer annular portion is joined to the central portion by radially extending spokes. The outer annular portion of the rigid frame member is covered with a body of elastomeric material which is shaped to provide a valve seat surface for engagement by the movable portion of the valve and is also shaped to provide a securing region which is clamped within a fluid conduit within which the valve is positioned. The outer annular portion of the rigid frame member has a radial portion adjacent the valve seat surface of the body of elastomeric material for support thereof and a cylindrical portion adjacent the securing region of the body of elastomeric material for support and reinformcement thereof during clamping thereof within a fluid conduit within which the valve is positioned.

Abstract: A carburetor air control valve device which accurately meters air flow to each of the ports of a carburetor. A plurality of closure members of the poppet type are operated by expansion of a bellows member, as the bellows member expands in response to changes in density of the air to which the valve device is subjected. Each of the closure members is adapted to control flow of air to a port of an automotive carburetor.

Abstract: A thermally responsive valve device having non-linear flow characteristics. The thermally responsive valve device includes movable and stationary valve structure. A movable valve member is movable to adjust the open area of a flow passage, but movement of the movable valve member provides non-linear relationship between the area of the flow passage created and the distance of travel of the movable valve member. The movable and/or the stationary valve member is provided with an irregularly shaped portion so that with slight opening movement of the movable closure member less fluid flow than normal is permitted. As the movable valve member continues to move in an opening direction, the fluid flow increases at a predetermined non-linear rate until a specific flow rate is achieved. This operating characteristic eliminates or dramatically reduces temperature fluctuations in the system.

Abstract: A snap action fluid control valve, the operation of which is controlled by a relatively slow acting thermally responsive actuator member. The valve of this invention is particularly adapted for use in controlling flow of fluid to a fluid operable clutch or the like for operation thereof. The thermally responsive actuator portion of the valve senses temperature of a fluid, the temperature of which is responsive to operation of a fan which is operated through the clutch.

Abstract: A thermally responsive by-pass valve device which permits maximum fluid flow in limited area conditions. The valve device is adapted to be employed in an environment in which there are limited area conditions within conduit structure having a plurality of flow passages in a by-pass type of cooling system of an internal combustion engine. The by-pass valve device is provided with valve seat structure which has an entrance opening and an exit opening, and there is an internal wall surface of gradually increasing dimensions between the exit opening to the entrance opening. Thermally responsive actuator mechanism is positioned within the openings of the valve seat structure.

Abstract: A thermally responsive valve device having non-linear flow characteristics. The thermally responsive valve device includes movable and stationary valve structure. A movable valve member is movable to adjust the open area of a flow passage, but movement of the movable valve member provides a non-linear relationship between the area of the flow passage created and the distance of travel of the movable valve member. The movable and/or the stationary valve member is provided with an irregularly shaped portion so that with slight opening movement of the movable closure member less fluid flow than normal is permitted. As the movable valve member continues to move in an opening direction, the fluid flow increases at a predetermined non-linear rate until a specific flow rate is achieved. This operating characteristic eliminates or dramatically reduces temperature fluctuations in the system.

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 worm gear type hose clamp having quick attachment and release features. A housing carries a worm or screw member which is meshable with a toothed or slotted portion of a band. The band has a ramp portion which is, preferably, an integral part thereof. The housing is movable along the ramp portion of the band, from a part of lesser extension to a portion of greater extension, to urge the worm into meshed engagement with the toothed portion of the band. In such position of the housing, the band is tightened or loosened by rotative movement of the worm. The housing also is movable along the ramp portion from the part of greater extension to the part of lesser extension to release the worm from meshed engagement with the toothed portion of the band and to permit free movement of the toothed portion of the band without rotative movement of the worm. The band has portions which limit movement of the housing with respect thereto.