Abstract:
A composite structure for a microwave oven housing having a main frame defined by top, rear and bottom surfaces and being open along the front thereof is disclosed. A partition wall is disposed in the main frame intermediate the side edges thereof for providing and separating a cooking chamber and a control compartment. A rectangular door frame is connected to front edge portions of the top and bottom surfaces of the main frame in front of the chamber for connecting an oven door thereto, the door frame defining an opening for access to the chamber. An additional feature includes a mode stirrer housing and a waveguide mounted on the top surface of the main frame above the chamber and compartment with the top surface defining openings which communicate between the compartment and waveguide and between the mode stirrer housing and chamber for transmitting a microwave signal generated in the compartment through the waveguide to the housing, and from the housing into the chamber.
Abstract:
Apparatus for measuring reflected or transmitted light is described. The apparatus comprises filter type spectrophotometer having a wavelength range of from about 200 nm (nanometers) to about 1,100 nm which includes a sample illuminating light source capable of producing an extremely intense light of short duration; light diffusing means; a light filter for transmission of a selected wave-length; at least two independent light sensing means; and separate means defining light transmission paths for the passage of light from the light source to one light sensing means and from the illuminated sample to the other light sensing means.In a preferred embodiment the apparatus includes a light diffusing integrating sphere. In another embodiment, a replaceable or repositionable module can be used to convert the apparatus from reflectance to transmittance spectrophotomer.
Abstract:
A disc-like reflector, in addition to preventing excessive cooking of the food in a region immediately adjacent the probe housing, functions as a spring to hold the handle and reflector assembly together. The assembly remains tightly together despite different coefficients of thermal expansion of the various component parts.