Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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.
| Number | Title | Issue Date |
| 7342375 | Automatic storm shutter control The present invention provides wireless and direct wired methods and devices for automatically closing electrically-driven roll-down storm shutters in the presence of rain on one or more rain sensors. ... | 03/11/2008 |
| 7331321 | Handheld electric starter for engines and method of use An apparatus for starting an internal combustion engine having a manual recoil starter and starter rope comprises a casing that houses a motor, a source of power, a gear reducer assembly and a spool assembly. The spool assembly includes a spool that adapted to recei... | 02/19/2008 |
| 7289833 | Apparatus and method for controlling opening and closing of sub-body in an automatically and manually foldable mobile communication terminal Disclosed are an apparatus and a method for controlling a correct position of opening and closing a sub-body (folder) in an automatic foldable mobile communication terminal. A sensor means is arranged in one end of a main-body and the sub-body, for detecting a fully... | 10/30/2007 |
| 7242974 | Method and device for controlling opening/closing of a sub-body in an automatically and manually folded portable wireless terminal Disclosed is an apparatus and method for determining incomplete opening/closing of a sub-body of a mobile terminal due to overload when a user automatically opens/closes the sub-body, by means of an open sensor and a close sensor, and for controlling operation of th... | 07/10/2007 |
| 7183733 | Opening and closing member control apparatus An opening and closing member control apparatus includes: an open-command receiving portion for receiving a first open command of a first open and close command inputting member and a second open command of a second open and close command inputting member, which per... | 02/27/2007 |
| 7109677 | Motorized barrier operator system for controlling a barrier after an obstruction detection and related methods A method for controlling a motorized barrier operator after detecting an obstruction includes the steps of providing a motorized barrier operator that moves a barrier between limit positions and providing at least one control switch that upon actuation moves the bar... | 09/19/2006 |
| 7095199 | Automatic vehicle wiper system An automatic vehicle wiper system including a wiper, a speed sensor which measures vehicle speed, a rainfall measuring device which measures amount of rainfall during predetermined intervals, a calculating device which calculates a wiping action frequency of the wip... | 08/22/2006 |
| 6538407 | Motor control method and motor control apparatus A motor control method and a motor control apparatus according to the invention supply a DC motor for a predetermined time period upon starting said DC motor with a d.c. current as an initial value current, which is smaller than a threshold value current ... | 03/25/2003 |
| 6437531 | Backup method of microcomputer used in case of stoppage of operation, backup unit of microcomputer, and control unit for controlling power window for automobile use There is provided an external watchdog timer 30 for detecting a temporary runaway of the microcomputer body 20 and resetting it according to a pulse output of the microcomputer body 20. Further, an internal watchdog timer 70 operated independently from a ... | 08/20/2002 |
| 6002228 | Device for electronically controlling a motor vehicle displacement mechanism An apparatus for electronically monitoring an adjusting drive controlling a moving part in a vehicle is proposed wherein a position-dependent anti-jam system is realized. The signals of a switching strip and of an incremental sensor are considered in diff... | 12/14/1999 |
| 5939851 | Position control device A position control device for driving a movable member by a motor to a target position prevents a re-start of the motor by the vibration after stopping of the movable member. A re-start operation is forcedly inhibited during a predetermined period after a... | 08/17/1999 |
| 5923136 | System for powering auxiliary equipment in a remotely-powered pumping station A transformer has its primary windings connected in series with the pumping motor and has secondary windings powering in cascade a rectifier and a voltage limiter regulating the voltage supplied to the auxiliary equipment by diverting excess current suppl... | 07/13/1999 |
| 5910718 | Motor control apparatus A control circuit outputs a first signal at a predetermined period in the case of being in a normal state and in the case of not being in a normal state, stops the output of the first signal at the predetermined period and outputs a third signal for contr... | 06/08/1999 |
| 5877604 | Circuit for operating an electric motor A circuit for operating an electric motor includes a feedback arrangement which generates a control variable signal that is supplied to a drive stage for the motor. The circuit also includes a monitoring arrangement to ascertain whether the motor is overl... | 03/02/1999 |
| 5783918 | Method of controlling automatic door opening/closing apparatus for a washing machine There is disclosed a method of controlling an automatic door opening/closing apparatus for a washing machine that includes the steps of determining whether or not there is an error in an automatic door opening or closing operation carried out in response ... | 07/21/1998 |
| 5723959 | Power window driving control device A power window driving control device formed of a measuring device which measures time elapsed since closing of a window glass has been designated by a switch, a sensor which detects a completely closed state of the window glass, a current detecting devic... | 03/03/1998 |
| 5594311 | Lens controlling apparatus A lens controlling apparatus includes a lens-driving stepping motor, a driving current forming circuit for forming a driving current waveform to be supplied to the stepping motor, an inputting circuit for inputting a stop instruction to stop the lens-driv... | 01/14/1997 |
| 5459380 | Moisture activated window closer A moisture-responsive system for closing the windows or sunroof of a vehicle having one or more openings each closed by a power driven closure; the system having a moisture sensor for providing a moisture signal in response to the sensing of moisture; a c... | 10/17/1995 |
| 5422550 | Control of multiple motors, including motorized pumping system and method A control system and method for a plurality of motors utilize one, and only one, motor drive unit that provides power to drive any one of the motors. The system and method also utilize a controller that controls which of the motors to energize. Power from... | 06/06/1995 |
| 5345159 | Method of controlling printer A method of controlling a printer using a dc motor as a drive source thereof, comprises the steps of: setting a predetermined prohibition period of time during which print and sheet-forward operations are prohibited, the predetermined prohibition period o... | 09/06/1994 |
| 5105134 | Wiper apparatus interlocking to washer A wiper apparatus comprises a wiper switch, a washer motor, a washer switch for actuating the washer motor by its on-operation, a wiper motor actuated independently by on-operation of the wiper switch and interlockingly with the washer motor by the on-ope... | 04/14/1992 |
| 4993104 | Electrical safety interlock and pulse-type reset circuit for a vacuum cleaner system A safety interlock circuit for a vacuum cleaner system is disclosed for interrupting the flow of current through conductors of a vacuum hose and handle assembly whenever an electrical attachment accessory is disconnected from the handle assembly during op... | 02/19/1991 |
| 4556831 | Circuit arrangement for electrical tool with clutch In an electrical tool having a clutch for adjusting rotational torque of the driven shaft, a limit switch of double-throw type is used for detecting the state of the clutch, and a capacitor is arranged to be charged via the limit switch. In one embodiment... | 12/03/1985 |
| 4527071 | Modular power plant for the combined production of electrical and thermal energy and installation comprising a plurality of modular power plants A modular power plant comprises an internal combustion engine coupled to an electrical machine. The electrical machine may be used to start the engine and to generate electrical energy. The power plant is provided with an electronic control and protection... | 07/02/1985 |
| 4517501 | Rotation control system A rotation control system including speed control feedback automatic speed control apparatus for controlling the rotation speed of a rotator to a predetermined speed, feedback automatic phase control apparatus for controlling the rotation phase of the rot... | 05/14/1985 |
| 4473338 | Controlled well pump and method of analyzing well production In a well such as an oil well, a timer connects a power source to the motor which drives the well pump for timed energization and de-energization periods. The timer consists of an electronic programmable timer having a stored program data processor for pr... | 09/25/1984 |
| 4472663 | Failure protection circuit for a two-motor lift truck An electrically operated dual motor drive system having first and second reversible traction motors (14, 16) driven by a power source (18). Motor control circuitry (10, 12) for controlling the direction of current flow through the motors (14, 16) is desig... | 09/18/1984 |
| 4354147 | Drive and control arrangement for a mechanical eccentric press A drive and control arrangement for a mechanical eccentric press is disclosed. The arrangement includes a direct current electric motor connected to a reduction gear mechanism. An output shaft of the reduction gear mechanism is coupled to an eccentric suc... | 10/12/1982 |
| 4325014 | Automatic control unit for a wind-following rotor A control unit for automatically controlling the angular position of a reversible, motorized device, such as an antenna rotor, in response to a signal from an external sensor, such as a potentiometer coupled to the rotating shaft of a windvane. The unit i... | 04/13/1982 |
| 4323827 | Apparatus for controlling a two-speed shift motor An electronic control means utilized in an electrically actuated shift apparatus for a multispeed axle including an electric power source and an electric motor coupled to actuate means for shifting the axle. The power source is connected to the electric m... | 04/06/1982 |
| 4302711 | DC Servomotor circuit having drive current controlled as a function of motor speed A drive circuit is provided for controlling the energization of a DC motor as a function of speed to maintain the motor speed equal to a speed defined by a speed command signal. The speed command signal is summed with a velocity feedback signal to produce... | 11/24/1981 |
| 4263539 | Automatic antenna positioning apparatus Apparatus for rotating an antenna to a predetermined position and maintaining said position is disclosed. The system comprises an antenna position sensing signal source, a desired position signal source, both of which provide analog signals, position comp... | 04/21/1981 |
| 4221996 | Hoisting apparatus A hoisting apparatus and a control circuit therefor comprising a reversible electric motor drivingly connected to a hoisting drum for hauling an object up and down. The control circuit includes first and second photosensitive elements each responsive to a... | 09/09/1980 |
| 4220900 | Motor control system for a linearly reciprocating load device such as automotive vehicle closure including sun roof A system is provided to control a load responsive to a maximum load condition to disable the load when the maximum load condition exists, the control being altered first to provide a period of non-response during load start up and secondly to provide temp... | 09/02/1980 |
| 4179646 | Control circuit for circuit breaker DC motor operator A circuit breaker motor operator control circuit utilizes the voltage developed across a dynamic braking resistor during breaking of a permanent magnet DC motor to prevent re-energization of the motor until it has been braked to a virtual stop. The contro... | 12/18/1979 |
| 4168456 | Apparatus for controlling an electric motor for driving a cooling fan of an internal combustion engine Disclosed is an apparatus for controlling an electric motor for driving a cooling fan of an internal combustion engine. The apparatus comprises an engine operation detecting means, a timer, an engine temperature detecting means, a logical product generati... | 09/18/1979 |
| 4119896 | Sequencing control circuit A sequencing control circuit is provided for a door operator motor which is connected to open and close a garage door as controlled by signals from manual switches and load switches. The sequencing control circuit includes time delay means with a first ti... | 10/10/1978 |
| 4110673 | Extendable vehicle step and step motor control system A step structure for mobile homes and the like. A base is secured to an underside of the vehicle and serves to pivotally mount a linkage which in turn carries a pair of step rails on which a step is slidably mounted. Extension and retraction of the step i... | 08/29/1978 |
| 4097791 | Delayed turn-on and turn-off control circuit A delayed turn-on and turn-off control circuit for an electric motor includes a motor relay having an electrical actuator and a normally open motor contactor which is connected in series between the motor and an electrical power source for running the mot... | 06/27/1978 |
| 4081725 | Lift truck control providing time delay in operation of directional contactor A chopper motor-controller for regulating a lift truck traction motor incorporates means for detecting faults which may cause the truck to run out of control, such as the high speed bypass contacts which shunt the semiconductor power switch being welded c... | 03/28/1978 |
