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AssigneeRobertshaw Controls Company
InventorsKelly, Samuel T., Jay R. Katchka
Estimating the term…
A fuel control valve construction, parts therefor and methods of making the same are provided, the construction comprising a housing having an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a main burner, the housing having a pilot outlet adapted to be interconnected to a pilot burner for the main burner, the housing having a pilot valve seat and a main valve seat for interconnecting the inlet respectively with the pilot outlet and the main outlet, the housing having a movable pilot valve member for opening and closing the pilot valve seat and a movable main valve member for opening and closing the main valve seat, the housing having a movable lever carrying the pilot valve member and the main valve member and having a manually operable actuator for controlling the operating positions of the lever.
In the combination comprising a supporting means, electrically operated coil means carried by said supporting means, two movable plunger means carried by said supporting means in generally a side-by-side spaced apart parallel relation and being operatively associated with said coil means to be moved to certain positions thereof when said coil means is energized, and two separate valve means carried by said supporting means and respectively being operatively associated with said plunger means to be controlled thereby, the improvement wherein said coil means comprises a single coil having a portion of one of said plunger means disposed therein, the other of said plunger means being entirely external to said coil while being adapted to be operated by said coil substantially in unison with said one plunger means.
In a method of making the combination comprising a supporting means, electrically operated coil means carried by said supporting means, two movable plunger means carried by said supporting means in generally a side-by-side spaced apart parallel relation and being operatively associated with said coil means to be moved to certain positions thereof when said coil means is energized, and two separate valve means to be carried by said supporting means and respectively be operatively associated with said plunger means to be controlled thereby, the improvement comprising the steps of forming said coil means to comprise a single coil having a portion of one of said plunger means disposed therein, and disposing the other of said plunger means so as to be entirely external to said coil while being adapted to be operated by said coil substantially in unison with said one plunger means.
Dependencies are inferred from the claim text.