U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Comic actor Danny Kaye received patent D166,807 for the co-design of "Blowout Toy or the Like". It's similar to one of those toys that unravels when you blow into at a birthday party except Kaye's has three blowouts going in different directions, not just one.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 307/126 - Power or energy


Subclass of Class 307 - Electrical transmission or interconnection systems
Definition: Subject matter in which the system is automatically responsive
No. of patents: 229
Last issue date: 05/15/2012


          6  
NumberTitleIssue Date
4520274Method and apparatus for controlling the loads or a plurality of units on a shared source
An apparatus for controlling loads of a plurality of units on a shared source which includes a timer interfaced with a computer controlling the connection of each individual unit to the source on an individual basis for a connection period. The timer cont...
05/28/1985
4513207Alternating comparator circuitry for improved discrete sampling resistance control
A pair of comparators, each having the same reference potential at a first input, each have a second input alternatingly receiving different ones of first and second signals relating to the magnitude of a parameter to be controlled. The results of a first...
04/23/1985
4476398Home demand controller
A demand controller uses a sensor to detect the operation of an electric load. The sensor operates a relay which supplies power to a magnetic contactor. The magnetic contactor controls power available to a second electric load so that the total amount of ...
10/09/1984
4472640Peak load limiting
An electric range is connected in series with first and second current sensing relays between power lines having 230 volts a.c. therebetween. An electric dryer is connected in series with normally closed contacts associated with the first current sensing ...
09/18/1984
4464553Induction heating apparatus with an override circuit
An induction heating apparatus for cooking includes an induction heating coil which generates a high frequency time-varying magnetic field used to heat a metal object; a high frequency inverting circuit which supplies a high frequency AC signal to the hea...
08/07/1984
4437018Audio component coupler
An audio component coupler connects to separate components in an audio system through their power terminals and integrates the components into a unified system in which the components are, at the selection of the user, responsive to either the automatic s...
03/13/1984
4433249Energy conservation system
Conservation system for use with a power source which supplies power over premises wiring to utilization equipment such as lighting equipment. Contactors and a control system are provided to temporarily interrupt the supplying of power from the power sour...
02/21/1984
4421993Load resistance control circuitry
A load resistance control circuit compares the actual value of a non-zero temperature coefficient load resistance to a desired load resistance magnitude, and generates a control signal varying as a function of the deviation of the actual load resistance f...
12/20/1983
4410924Motor protection control circuit
A protection device and circuit for a fluid pump or the like including a motor control relay MS for actuating relay contacts MS-1, MS-2, MS-3 that control the communication of power to a drive motor 10a, and a manual reset motor protection device 24 that ...
10/18/1983
4392064Unballasting relays
The present invention relates to unloading relays mounted in modulation circuits of the allocated power by modification by telecontrol of the tripping threshold of the breaker. A preceding signal or the telecontrol signal of the level of the breaker detec...
07/05/1983
4321477Energy management apparatus and method
An energy management system for a group of electrical loads such as in an industrial plant. The electrical power usage by the group of loads is elastically maintained between an upper set point and a lower low limit point, which is a percentage of the set...
03/23/1982
4292543Electrical energy management devices
Method and apparatus for minimizing the peak load usage in electrical systems having multiple electrical power loads when each load is provided electrical power from an electrical source and including first switch means disposed in the power supply to eac...
09/29/1981
4277691Energy allocator
A system for allocating energy adapted to be coupled to a plurality of conditioning equipment systems utilized to alter a plurality of corresponding first conditions. Thermal sensors for monitoring the conditions in each of a plurality of environments are...
07/07/1981
4263536Control circuit for a motor-driven door operator
A door operator includes a motor-driven mechanism to move a door between an open position and a closed position in response to activation of an improved control circuit. The improved control circuit includes circuitry to initialize the sequence of operati...
04/21/1981
4243970Open circuit alarm
A timing circuit for sounding an alarm for left-on main power switches, particularly in aircraft, includes a detector circuit for a secondary circuit of a complete circuit, a clock circuit controlled by the main power switch and an audioalarm circuit acti...
01/06/1981
4208593Method and system of selective disconnection of loads from a power source
A method and system for controlling peak electrical demand placed on a source of electrical energy by a plurality of electrical loads that include at least one electrical load of lower priority than at least another of the loads. Demand for electrical ene...
06/17/1980
4204128Adjustable time delay relay
An adjustable time delay relay is provided which is particularly suitable for automatic transfer switches and other applications requiring a relatively long time delay during periods when electrical power is not available. The relay includes a relay coil ...
05/20/1980
4180744Energy management system
An energy management system for limiting continuously instantaneous permissible power level of a plurality of controllable loads including a transducer device for generating an output signal when the measured instantaneous power level exceeds a pre-set in...
12/25/1979
4123792Circuit for monitoring the mechanical power from an induction motor and for detecting excessive heat exchanger icing
An electronic signal proportional to Icosθ for an induction motor is substantially proportional to the mechanical power output of the motor. This signal is detected by rectifying a signal which is an analog of motor current in phase with the motor voltag...
10/31/1978
4118614Multiple-function, hand-actuated switch unit, particularly for electrical hand tools or appliances and the like
To provide the functions of (a) ON-OFF and, selectively, at least two of the functions of (b) speed control; (c) overload cut-out; (d) forward-reverse rotation; (e) RF interference suppression, in a universally applicable structural unit, a switch housing...
10/03/1978
4118615Hand-actuated, multiple-function switch unit, particularly for electrical hand tolls, appliances and the like
To provide for simple assembly of a multiple-function switch unit in modular form to provide (a) a basic ON-OFF function and, selectively, at least one of the functions (b) speed control; (c) overload protection; (d) forward-reverse; (e) RF interference s...
10/03/1978
4100383Industrial reversing speed control trigger switches having snap-in modules
Two embodiments of industrial grade trigger switches are disclosed. Each has an on-off switch and a resistor controlled speed control circuit operated by trigger depression and a reversing switch provided with an operating lever overlying the trigger, and...
07/11/1978
4100428Control system for limiting the electrical consumption of a distribution network
The control system permits limiting the electrical demand of a distribution network to a desired maximum value by regulating the temperature of one or more thermal loads with heating or cooling elements; this system includes: means for measuring the insta...
07/11/1978
4097705Quick lock-release mechanism for a trigger switch
A quick lock-release mechanism for a trigger of a trigger switch mounted in the handle of a drill housing for activating a motor of a drill, which mechanism will selectively lock and release the trigger. The trigger is slidably connected in the handle wit...
06/27/1978
4097703Trigger switch and lock mechanism therefore
A trigger switch and lock mechanism therefore to be mounted in the handle of a drill housing for activating a motor of a drill wherein the trigger switch includes a speed control circuit carried on a circuit board. A trigger is slidably disposed in mounti...
06/27/1978
4097704Industrial reversing speed control trigger switch with snap-in modules
An industrial grade trigger switch having an on-off switch and a resistor controlled speed control circuit both controlled by trigger depression and a reversing switch provided with an operating lever overlying the trigger, and characterized by a large he...
06/27/1978
4095072Industrial speed control trigger switch with integral reversing switch
An industrial grade trigger switch having an on-off switch and a resistor controlled speed control circuit both controlled by trigger depression, and characterized by a reciprocal button reversing switch integrally within the trigger, a heftier trigger, l...
06/13/1978
4057793Current carrier communication system
A current carrier communication system for selectively transmitting binary electrical signals from a first location to a second location over the AC power lines in a AC power distribution network in a building comprising a first tone generating means oper...
11/08/1977
4013895Clamping tool and method
A clamping tool is provided with an electric motor as a driving source of the tool. The condition of the axial force of the clamping means, such as a bolt and nut, on the clamped elements, such as metal sheets is detected by monitoring one of the followin...
03/22/1977
          6  
 
Sign InRegister
Username  
Password   
forgot password?