Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7432477 | Set-back control for both HVAC and water heater via a single programmable thermostat A system and method of using a set-back or programmable thermostat for heating or cooling systems to also controlling a fast-recovery water heater such as a power-vented fossil fuel powered water heater such that the water heater is disabled during a set-back mode o... | 10/07/2008 |
| 7355151 | Magnetic safety feature for cookware and cooking stoves Methods and devices for securing the bottom of an item of cookware to the burner of a stove top by use of magnetism. The magnet(s) may be permanent magnets or electromagnets. The cookware may comprise a permanent magnet disposed on or in the base of the cookware. Th... | 04/08/2008 |
| 7348690 | Preventing unsafe operation by monitoring switching means An electronic control that monitors the switching means used to operate transducers to detect conditions that can cause improper transducer operation. In the application the unenergized state of the transducer is always safe. Should a switch in the transducer circui... | 03/25/2008 |
| 7345259 | Circuit arrangement and method for preventing overheating of a cooking appliance The invention relates to a method and a circuit arrangement for preventing overheating of a cooking appliance. The arrangement includes a power circuit with a heating element and a control circuit with a coupling switch. The control circuit and the power circuit are... | 03/18/2008 |
| 7312425 | Programmable slow-cooker appliance A programmable slow-cooker appliance uses an application-specific integrated circuit digital controller, in which a user sets a time and temperature for cooking a food item. The digital controller prevents the unit from functioning only as a “keep warm” applianc... | 12/25/2007 |
| 7279660 | Apparatus for brewing beverages An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The conta... | 10/09/2007 |
| 7180039 | Heater with burnout protection A heater is provided that has a temperature sensing control system which can be used for both temperature control and over-temperature protection against element burnout. The temperature control system is comprised of an inlet temperature sensing assembly positioned... | 02/20/2007 |
| 7180038 | Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device A control is provided for switching on and off two heating devices of a hob forming a hotplate. In cyclic manner the continuous energy or power generation level can be adjusted by an energy control device. A temperature limiter monitors a maximum temperature via the... | 02/20/2007 |
| 7135658 | Magnetic safety feature for cookware and cooking stoves Methods and devices for securing the bottom of an item of cookware to the burner of a stove top by use of magnetism. The magnet(s) may be permanent magnets or electromagnets. The cookware may comprise a permanent magnet disposed on or in the base of the cookware. Th... | 11/14/2006 |
| 6981650 | Pool/spa heater A pool/spa heater having a temperature control portion which is connectable to an external temperature regulating controller, in which the temperature control portion has at least one primary temperature limiting control switch with a first temperature setpoint, at ... | 01/03/2006 |
| 6952086 | Linear position sensing system and coil switching methods for closed-loop control of large linear induction motor systems A control system for a linear motor adapted to accurately supply a moving window of power to the stator coils. A plurality of individually switched stator coils run the length of a linear motor to move a rotor down the long axis of the stator. Accurate inductive-bas... | 10/04/2005 |
| 6872923 | One pop popcorn popper A popcorn machine for automatic activation of the popping cycle is disclosed. The popcorn machine has a kettle with a heating element controlled by a thermostat. Popping corn is placed in the kettle by a user. A control panel has a one pop button which when pressed ... | 03/29/2005 |
| 6573482 | Heating device, liquid processing apparatus using the heating device and method of detecting failure thereof A liquid processing apparatus includes a liquid processing unit 30 for supplying objects to be processes, such as wafers W, with a processing liquid for liquid processing, a processing-liquid supplying unit 100 for supplying heated processing liquids 12a,... | 06/03/2003 |
| 6489597 | Range surface heating unit relay power switching control A range burner surface heater system includes an input selector, a control, a surface heating unit, and a pair of low cost relay switches. The input selector is connected to the control, and the switches are responsive to the control. The surface heating ... | 12/03/2002 |
| 6465764 | Water heater and control system therefor A water heater having a water tight tank (10) with a cold water inlet (14) and a hot water outlet (16). First and second heating elements (24, 26) are mounted in the upper and lower portions of the tank (10). A controller is provided for energizing elemen... | 10/15/2002 |
| 6429407 | Household electronic toaster A toaster having an electronic circuit including a chip-on-board ASIC that controls the operation of toaster heating elements and an electromagnet to which relatively high voltage is applied to hold an armature carried by a bread carriage and toaster-oper... | 08/06/2002 |
| 6413630 | Decorative film A decorative film having an excellent decorative effect, excellent three-dimensional curvature emulating properties, three-dimensional curvature formability, long-term weather resistance and stain resistance. The decorative film comprises one or more tran... | 07/02/2002 |
| 6407366 | Image heating apparatus having a plurality of heat generating elements Conventionally, a thermal fixing apparatus contained in an image forming apparatus has a heater like a halogen heater or a film-heating type heater. Generally, the heater comprises a plurality of heat generating elements connected to an AC power supply. S... | 06/18/2002 |
| 6310331 | Circuit configuration for driving an ignition coil A circuit configuration for driving an ignition coil includes a first semiconductor switch having a load path connected in series with a primary winding of the ignition coil, and having a control electrode, which is driven in accordance with a first drive... | 10/30/2001 |
| 6294767 | Dishwasher A dishwasher having a cabinet and wash chambers in the form of drawers which slide in and out of the cabinet. Rigid and flexible closures are disclosed for sealing off the wash chambers when retracted into the cabinet. A detergent dispenser for the dishwa... | 09/25/2001 |
| 6268588 | Steering wheel heater assembly and a method for heating a steering wheel A steering wheel heating assembly 10 which electively provides a relatively high voltage electrical signal to a heating element 16 which is coupled to a steering wheel, effective to heat the steering wheel. The assembly 10 includes a temperature sensor 28... | 07/31/2001 |
| 6140620 | Appliance timer A device for disconnecting an electric appliance or a component thereof from a source of electricity including a circuit connecting the appliance or component thereof to a power source through a relay or other component to open the circuit; and a timer ci... | 10/31/2000 |
| 6137091 | Electric cooker Due to a bimetallic contact point, a fine control is out of sight. Further, dispersion of bimetal characteristics and poor durability of a contact point cause problems, particularly in maintenance work. In order to overcome these problems, a controller fo... | 10/24/2000 |
| 6130413 | Safety device for electric cooking stove A safety device for use in conjunction with an electric cooking stove includes a relay unit having a plug having two live pins and a neutral pin for insertion in a stove receptacle, a receptacle receiving a similar plug of a stove, a relay arrangement for... | 10/10/2000 |
| 6084218 | Spa heater temperature control circuit A heater assembly for use with spas, hot tubs and the like, includes a control circuit which controls the application of electrical power to the heater. A control circuit controls application of power to the heater in response to a thermostat setting, the... | 07/04/2000 |
| 6052988 | Apparatus for controlling the supply of electric power to electrically heated catalyst In an initial predetermined period of time for supplying electric power to the electrically heated catalyst mounted on the vehicle, a maximum of electric power is supplied from the power source to simplify the complex heat control operation. Simultaneousl... | 04/25/2000 |
| 6015967 | Ground drift-free switching circuit A switching circuit for selectively switching either of two input signals to an output circuit employs electrically isolated separate input circuits with independent grounds to prevent drift of the output signal delivered by the output circuit. Circuit is... | 01/18/2000 |
| 5951901 | Steam control for combination oven and steamer A control system for steam production in a oven combination is described. The control is adapted for use with a single source of steam and a plurality of oven cavities wherein cooking is achieved by a combination of convection oven and steam heat or by st... | 09/14/1999 |
| 5948305 | Multi-function control module for toaster oven appliance An integrated circuit constructed to provide control functions to a toaster oven cooking appliance. The control functions including compensation for input voltage fluctuations, compensation for residual heat due to recycling, audible signal generation, mu... | 09/07/1999 |
| 5938960 | Timer with adjustable time control based on an RC oscillator with a variable resistor, and toaster including such a timer An RC oscillator having an oscillation frequency which is controllable by supplying a step voltage signal to a series arrangement of a capacitor and a resistor, the oscillation frequency being dependent on the time for the capacitor to be charged to a giv... | 08/17/1999 |
| 5897804 | Method and means of heating and controlling the temperatures in a sauna A control circuit for a sauna compartment has an electrical heater therein connected to a control circuit. The control circuit allows a high voltage to flow through a first heating circuit to permit ambient air in the compartment to reach a first high tem... | 04/27/1999 |
| 5880438 | Steam sterilization apparatus and control system A steam sterilization apparatus (10) includes an electronic control system having a main control circuit (C) including a central processing unit (68), an input device (36), and output devices (24,28) provided on a single circuit board (22) which is attach... | 03/09/1999 |
| 5844209 | Apparatus to control the cooking temperature of foods Apparatus for control of cooking foods temperature by sensing their temperature with thermistors, which form part of a first electrical circuit that induces a magnetic flux in an electromagnet, a second electrical circuit that induces, in the electromagne... | 12/01/1998 |
| 5822978 | Method of controlling the electric heating of a catalytic converter This is a method of controlling an electric heater of a catalytic converter. An electric heater is powered by two separate batteries. There are an electronic control unit, a power switch, and an isolating switch providing logic control to the electric hea... | 10/20/1998 |
| 5739504 | Control system for boiler and associated burner A control system for use with a boiler and associated burner. In one embodiment, the system comprises a first control circuit for producing a signal having alternating first and second states, the first state activating the burner and having a first prede... | 04/14/1998 |
| 5698123 | Toaster compensation for repeated use A toaster control circuit is disclosed for correcting for toaster cavity temperature variations that occur as a function of the time between toaster heating cycles. This disclosed circuit produces the same toast color during consecutive cycles, regardless... | 12/16/1997 |
| 5679274 | Circuit and method for controlling electrical heater in a distiller The disclosure involves a countertop distiller for home use. Such distiller is of the type including a condensing coil and an electrically-powered water heater. A method for controlling power flow to the heater includes the steps of activating a timer cir... | 10/21/1997 |
| 5672288 | Light sensitive control for toaster In a toaster, a system is constructed to vary the duration of the toasting cycle. An RC network provides an oscillating signal to a counter, which upon the required number of oscillations being counted, triggers a transistor switch. The switch energizes t... | 09/30/1997 |
| 5658480 | Heating element control The temperature of each heating element among a plurality of heating elements is regulated by opening and closing a relay associated with each heating element in response to the monitored temperature of each heating element. The voltage across all of the ... | 08/19/1997 |
| 5645745 | Circuit and control method for electrically heating a catalyst In an engine exhaust system including a DC power source, an apparatus and method for electrically heating a catalyst, the apparatus comprising a multi-phase AC alternator in electrically operable relation to the DC power source, the AC alternator rectifyi... | 07/08/1997 |
