Emerson Electric Company

Charles D Visos

Carl F Fernstrom

Howard R Kinsella

James M Ferguson

Eugene L Kamp

A generally concave-shaped gas burner head is provided with circumferentially spaced means on the periphery of top and bottom portions for enabling water accumulated therein due to condensation of water vapor to flow out of the burner head without interfering with the burner flame at outlet ports on the periphery of the burner head. In one embodiment, the burner head is provided with a plurality of openings in a peripheral portion of the top portion which cooperate with a plurality of grooves in a downwardly sloping peripheral portion of the bottom portion. In another embodiment, a plurality of tabs in a peripheral portion of the top portion cooperate with a plurality of arcuate openings in a generally flat peripheral portion of the bottom portion.

Gas burner head with means for evacuating trapped water condensate

In a direct ignition gas burner control system wherein two valves are connected fluidically in series with the burner, a make-before-break thermostatically actuated switch is effective, when a set of 'cold' contacts are made, to energize an electrical resistance igniter and to open a first of the two valves which opening enables a pressure actuated switch to close its contacts. When the igniter is above a temperature sufficient to ignite gas, the thermostatically actuated switch makes a set of 'hot' contacts while its 'cold' contacts are still made. In this intermediate contact position, a second of the two valves is opened, allowing gas to flow to the burner. Continued energizing of the igniter causes the thermostatically actuated switch to break its 'cold' contacts, effecting de-energizing of the igniter. When the 'cold' contacts are open, the pressure actuated switch provides a hold-in circuit for the valves. The transitory intermediate contact position of the thermostatically actuated switch is of sufficient time duration so that, in the event the pressure switch contacts momentarily open due to a drop in pressure when the second valve opens, the valves will remain open.

Direct ignition gas burner control system

A gas burner control system wherein a burner is directly ignited by an electrical resistance igniter includes a pressure actuated switch effective to permit automatic re-cycle of the system in the event of an electrical power interruption or a gas pressure failure, and to prevent such automatic re-cycle in the event of an ignition failure.

A gas valve device includes an integral drip leg and filter, positioned upstream from valve means contained therein, for collecting and removing liquid and solid impurities from a gas stream. The drip leg and filter includes a fine-mesh screen of significantly larger cross-sectional area than an inlet opening through which the gas stream enters the gas valve device. The screen is positioned at an angle to cause solid particles to be deflected away from the screen. Clean-out means is located between the inlet opening and the screen for collecting and removing the accumulated liquid and solid impurities. In a preferred embodiment, a detachable cover can be removed to enable cleaning or replacing the screen.

Gas valve with integral drip leg and filter

An electromagnet with terminal means for series connecting the electromagnet, a conventional thermocouple, and an external safety switch. One end of a first terminal is adapted to provide low contact resistance when connected to the hot side of the thermocouple and the other end of the first terminal is adapted to be connected to the safety switch. Separated from the first terminal by an insulative base and integral with the base to which a yoke and winding are secured, are a second terminal, adapted to be connected at one end to the safety switch and connected at its other end to one end of the winding, and a third terminal, adapted at one end to be connected to the housing of a control device in which the electromagnet is assembled and connected at its other end to the other end of the winding.

Growing community of inventors

St. Louis County, MO, United States of America

Charles D Visos