摘要:
A removable insole for insertion into footwear, includes a forefoot portion, a heel portion, and an arch portion connecting together the forefoot and heel portions. At least one of the forefoot portion, heel portion and arch portion is formed by a lower layer of a resilient material which provides a cushioning function, and an upper layer positioned and secured on top of the lower layer and formed of a material having a Shore “000” hardness of less than about 45, and a tear strength greater than about 6.3 lb/in.
摘要:
A control circuit is provided for a microwave oven in which a crystal rectifier is responsive to variations in the level of the electromagnetic field within the oven cavity when items of different energy absorption or reflection characteristics are placed in the oven. The electric current developed by the crystal is employed to generate a ramp type electrical signal which is compared with a fixed reference voltage to control the termination of microwave power to the oven. Compensation for the nonlinear relationship between crystal current and the level of the electromagnetic field within the oven is provided. In addition, compensation for the initial temperature of the food item which is placed in the oven is provided. Provision is also made for physically shaping and/or partially shielding individual food items relative to a reference food item so that the same triggering level of the control circuit is effective to bring all of the food items to the desired condition at different time intervals depending upon the field strength level within the oven which is established when the food item is placed therein.
摘要:
A system for thermally reconstituting plural item meals in an oven with a cavity to which electromagnetic energy is supplied uses differently shielded or unshielded food containers to partially control the energy received by each food item from the cavity so as to place all of the items in a condition for consumption in the same controllable time interval. A template carried on a tray positions the food items relative to each other and to the cavity so as to further control the energy distribution to the food items. An electromagnetic energy sampling sensor carried on the tray automatically terminates the heating cycle. In one oven control, the sensor carried on the tray is a magnetic or ferrite mass which controls a magnetically responsive switch mounted in the oven to initiate the heating cycle and which is heated to its Curie point when the food items are properly heated to release the switch and terminate the heating cycle. The described method of preparing the plural item meal on the tray includes the steps of positioning the food items on the tray to distribute between them the energy available in the cavity, repositioning the items to compensate for changed cavity energy distribution resulting from the first positioning of the items on the tray, and positioning the sensor on the tray such that it reaches its Curie point when all of the template located food components reach a condition suitable for consumption.
摘要:
A control circuit is provided for a microwave oven in which a crystal rectifier is responsive to variations in the level of the electromagnetic field within the oven cavity when items of different energy absorption or reflection characteristics are placed in the oven. The electric current developed by the crystal is employed to generate a ramp type electrical signal which is compared with a fixed reference voltage to control the termination of microwave power to the oven. Compensation for the nonlinear relationship between crystal current and the level of the electromagnetic field within the oven is provided. In addition, compensation for the initial temperature of the food item which is placed in the oven is provided. Provision is also made for physically shaping and/or partially shielding individual food items relative to a reference food item so that the same triggering level of the control circuit is effective to bring all of the food items to the desired condition at different time intervals depending upon the field strength level within the oven which is established when the food item is placed therein.
摘要:
An electromagnetic oven is provided with a control system comprising a ferrite sensor located within the oven, a magnetic property detector coupled to the sensor, and control means responsive to signals from the detector.
摘要:
An electromagnetic oven is provided with a control system comprising a sensor located within the oven, a detector coupled to the sensor, and control means responsive to signals from the detector. In one embodiment, the control means activate a counter which, upon a predetermined number of operations, signals a condition of the load within the oven and may modify subsequent energy inputs to the load.
摘要:
An electromagnetic oven is provided with a control system comprising a ferrite sensor located within the oven, a magnetic property detector coupled to the sensor, and control means responsive to signals from the detector. The sensor is positioned on a tray together with the items to be heated and this assembly is preferably cooled to a uniform low temperature before the tray is placed in the oven. The sensor is thus subjected to the same thermal environment as the items on the tray so that when the tray is placed in the oven the time required for the sensor to reach its Curie point and shut off the oven is dependent upon the thermal "history" of the items on the tray.
摘要:
A plurality of food items are assembled on a tray together with a ferromagnetic mass which is positioned at a predetermined location on the tray and is arranged to change from a ferromagnetic to a paramagnetic state when a predetermined quantity of microwave energy has been received thereby. The food items are held in predetermined positions relative to themselves and the ferromagnetic mass by means of a templet which acts as a retaining means for the food items.
摘要:
A control circuit is provided for a microwave oven in which a crystal rectifier is responsive to variations in the level of the electromagnetic field within the oven cavity when items of different energy absorption or reflection characteristics are placed in the oven. The electric current developed by the crystal is employed to generate a ramp type electrical signal which is compared with a fixed reference voltage to control the termination of microwave power to the oven. Compensation for the nonlinear relationship between crystal current and the level of the electromagnetic field within the oven is provided. In addition, compensation for the initial temperature of the food item which is placed in the oven is provided. Provision is also made for physically shaping and/or partially shielding individual food items relative to a reference food item so that the same triggering level of the control circuit is effective to bring all of the food items to the desired condition at different time intervals depending upon the field strength level within the oven which is established when the food item is placed therein.