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US 11,549,688 B2Granted
Anti-rotation feature for a burner
AssigneeWhirlpool Corporation
InventorsPatrick J. Duffy, Ken E. Johnson
Life of this patent
Estimating the term…
Abstract
A gas burner for a cooktop includes a spreader extending along a major axis to define an elongated shape. The spreader further defines an underside and includes a first projection and a second projection extending away from the underside. An orifice holder includes a body and a first lobe and a second lobe extending radially outward from the body. The first and second projections are opposingly adjacent to at least one of the first and second lobes. The orifice holder is mutually engageable with the spreader, with the first and second projections opposingly adjacent with at least one of the first and second lobes.
Claims20
A gas burner for a cooktop comprising:
- a spreader extending along a major axis to define an elongated shape with an outer perimeter, the spreader further defining an underside inward of the outer perimeter and including a stem centrally disposed on the underside, a first projection, and a second projection each defining a vertical contact surface and extending away from the underside at separate, spaced-apart locations therea long, the spaced apart locations each being spaced inward from the outer perimeter and radially adjacent the stem, wherein the stem defines an inlet open through the spreader, and an exterior that includes a fin opposite the inlet;
- and
- an orifice holder having a body defining a cavity and a first lobe and a second lobe extending radially outward from and between first and second side surfaces of the body opposite the cavity, the contact surfaces of the first and second projections being positioned opposingly adjacent and coupled to at least one of the first and second lobes in an axial direction with respect to the body and positioned outside of the body, the body receiving the stem therein within the cavity and defining a groove in which the fin of the stem is disposed.
A burner for a cooktop comprising:
- a spreader defining an outer perimeter and an underside inward of the outer perimeter, having a plurality of transverse ribs and including a stem, a first projection and a second projection, the stem defining an inlet opening that extends through the spreader, and an exterior opposite the inlet opening, the stem, the first projection, and the second projection each defining a vertical contact surface, extending away from the underside, wherein the first and second projections are spaced inward from the outer perimeter and radially adjacent and spaced from the exterior of the stem, wherein the first projection is integrally formed with and extends from an end of at least one of the plurality of transverse ribs;
- and
- a holder including a body defining a cavity and at least one lobe extending radially outward from the holder opposite the cavity and along a radial axis defining a first side and a second side of the at least one lobe, the holder being mutually engageable with the spreader at least during operation of the burner including by positioning the contact surfaces of the first and second projections opposingly adjacent and coupled to the at least one lobe in an axial direction with respect to the body and by receipt of the stem of the spreader within the cavity of the body.
A cooktop comprising:
- an upper housing defining an exterior, an interior, and an aperture;
- a spreader positioned on the upper housing and defining an outer perimeter and an underside inward of the outer perimeter and resting on the exterior of the upper housing and including a plurality of projections, each defining a vertical contact surface and extending away from the underside at separate, spaced-apart locations therealong, the spaced-apart locations each being spaced inward from the outer perimeter and aligned with the aperture of the upper housing;
- and
- a holder rigidly affixed on the interior of the upper housing and including at least one lobe extending radially outward from the holder along a radial axis that divides the at least one lobe into a first side and a second side, the holder being mutually engageable with the spreader by positioning of the plurality of projections adjacent the at least one lobe through the aperture, wherein the contact surface of at least one projection of the plurality of projections defines a single contact point with the at least one lobe within an apex region of the at least one lobe during operation of the cooktop.
1 more element
Dependencies are inferred from the claim text.