Abstract: A knob assembly for a gas cooktop is provided that includes a receptacle mounted between a valve and a knob. The knob directly mounts to a knob control rod and is configured to mount in a vertical plane perpendicular to a plane defined by a horizontal support surface for a cooking receptacle. The receptacle includes a receptacle abutment wall, a receptacle wall extending from the receptacle abutment wall, and a control rod aperture wall formed through the receptacle abutment wall. The control rod aperture wall is sized and positioned to support insertion of the knob control rod therethrough. The receptacle abutment wall is configured to abut a back of a control panel when the knob assembly is mounted to the control panel. The receptacle wall is sized and positioned within a knob aperture wall formed through the control panel when the knob assembly is mounted to the control panel.

Abstract: A chimney assembly includes a cone assembly and a chimney. The cone assembly includes a wall forming a truncated cone having an outer surface, a first circumferential edge, and a second circumferential edge, a support flange extending from the outer surface, and a bottom wall extending between the second circumferential edge and including a burner aperture wall formed therethrough. The chimney includes an inner wall, an outer wall circumscribing the inner wall, a bottom chimney wall, and a plurality of tabs. The bottom chimney wall extends between a first cylinder formed by the inner wall and a second cylinder formed by the outer wall. The plurality of tabs extend from the inner wall toward a center of the first cylinder. The support flange rests on the plurality of tabs.

Abstract: A knob assembly for a gas cooktop is provided that includes a receptacle mounted between a valve and a knob. The knob directly mounts to a knob control rod and is configured to mount in a vertical plane perpendicular to a plane defined by a horizontal support surface for a cooking receptacle. The receptacle includes a receptacle abutment wall, a receptacle wall extending from the receptacle abutment wall, and a control rod aperture wall formed through the receptacle abutment wall. The control rod aperture wall is sized and positioned to support insertion of the knob control rod therethrough. The receptacle abutment wall is configured to abut a back of a control panel when the knob assembly is mounted to the control panel. The receptacle wall is sized and positioned within a knob aperture wall formed through the control panel when the knob assembly is mounted to the control panel.

Abstract: A chimney assembly includes a cone assembly and a chimney. The cone assembly includes a wall forming a truncated cone having an outer surface, a first circumferential edge, and a second circumferential edge, a support flange extending from the outer surface, and a bottom wall extending between the second circumferential edge and including a burner aperture wall formed therethrough. The chimney includes an inner wall, an outer wall circumscribing the inner wall, a bottom chimney wall, and a plurality of tabs. The bottom chimney wall extends between a first cylinder formed by the inner wall and a second cylinder formed by the outer wall. The plurality of tabs extend from the inner wall toward a center of the first cylinder. The support flange rests on the plurality of tabs.

Abstract: An instrumentation system including a plurality of sensors attached to a test piece, each of the sensors provided with an electrical signal generating device and an electrical signal measurement device. Each sensor is located remotely from its electrical signal measurement device, and connected thereto by connectors. A method of testing connectivity of the instrumentation system including: inducing an electrical signal in a first sensor; and checking that the electric signal is received in the corresponding signal measurement device.