US Patent No. 10,716,175


Patent No. 10,716,175
Issue Date July 14, 2020
Title Accessory Structures For Microwave Mounted In Aircraft Galley
Inventorship Frank Hoogland, Nieuwegein (NL)
Robin Hoegee, Nieuwegein (NL)
Jorge Pacheco, Nieuwegein (NL)
Dana R. Smrekar, Nieuwegein (NL)
Assignee Rockwell Collins, Inc., Cedar Rapids, IA (US)

Claim of US Patent No. 10,716,175

1. A door assembly for an aircraft galley microwave oven, the door assembly comprising:a door hingedly mounted to a front end of a microwave oven housing,
wherein the door is configured to cover an opening at the front end that provides access to an interior portion of the microwave oven, the door including
a bezel forming an outer frame of the door, the bezel configured to conceal internal door components from view from outside the microwave oven,
an inner door portion disposed within the bezel, the inner door portion made of a substantially transparent material and having an area that corresponds to the opening;
an electromagnetic interference (EMI) attenuation device disposed around one or more outer edges of the door, the EMI attenuation device including a plurality of folded transformer sections having dimensions based on an operative wavelength of electromagnetic energy generated by the microwave oven, wherein
the EMI attenuation device is configured to attenuate EMI waves escaping to an external environment from the interior portion of the microwave oven through a gap between the microwave oven housing and the door,
each of the plurality of folded transformer sections is positioned at an incline angle from a horizontal plane such that each of the plurality of folded transformer sections extends a greater distance in the horizontal plane than in a vertical plane.