Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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 |
| 7280972 | Seat lock out assembly and method of use A method for enhancing income when renting a vehicle having a driver seat and at least one passenger seat, wherein a driver sits in the driver seat to operate the vehicle, includes renting the vehicle to a user for a predetermined number of occupants of the vehicle ... | 10/09/2007 |
| 7262683 | System for controlling starting and stopping of engine A system for controlling starting and stopping of an engine that prevents a user from erroneously determining that the system is not functioning properly. The system includes an electronic key that may be inserted in a socket. The key selectively transmits a key ID ... | 08/28/2007 |
| 7259953 | Method and apparatus for modular embedded control system An embedded control system is provided, which includes a generically applicable computer module, display module, keyboard module, power supply module, and at least one input/output module. The display module is coupled to the computer module by a first communication... | 08/21/2007 |
| 7183903 | Security storage locker for a vehicle A security locker is for securing articles externally on a vehicle. The locker comprises a locker having at least one opening facing the exterior of the vehicle when the locker is fitted thereto, wherein the opening provides access to the interior of the locker. A d... | 02/27/2007 |
| 7140214 | Electro-mechanical cylinder lock-key combination with optical code An electromechanical cylinder lock-key combination includes a cylinder housing and a cylinder core rotatably arranged in the cylinder housing and having a key-way for receiving a key. A plurality of key actuated moveable blocking elements block the rotation of the c... | 11/28/2006 |
| 7135969 | Theft deterrent for home appliances A security system for protecting home appliances includes an alarm system with a wireless link to the protected appliances. The appliances include circuitry that disables the appliance in response to a signal from the alarm system. The appliance or alarm system can ... | 11/14/2006 |
| 6970081 | Distributed software controlled theft detection This invention provides the framework of a security system that is property specific as well as area specific. The invention includes a distributed software controlled security system that monitors and assesses the status of individual property items and conventiona... | 11/29/2005 |
| 6939300 | Multiple level transmitter and method of transmitting Transmitters for generating multilevel transmit waveforms for medical diagnostic ultrasound are provided. Voltages from a plurality of sources are superposed or summed. Switches control the amplitude and polarity of the summed voltages so that a transmit waveform ha... | 09/06/2005 |
| 6724607 | Driving apparatus of vibration type actuator A driving apparatus of a vibration type actuator includes an apparatus for forming a vibration wave by applying four-phase AC signals having temporal phase differences to four-phase driving phases arranged at intervals of ΒΌ wavelength, which includes first and seco... | 04/20/2004 |
| 6608548 | Control device with redundancy for fitting to a lock The present invention relates to a control device (20) with redundancy for fitting to a lock having a mechanism (21) for locking an unlocking an access door, the device (20) being adapted to manage a change of state of this lock under predetermined condit... | 08/19/2003 |
| 6567255 | Electromagnetic actuator An electromagnetic actuator with a control circuit, a combinational circuit and a power section as well as with a magnetic coil, which is connected via electrical lines to the output of the power section, the output signal of the control circuit is passed... | 05/20/2003 |
| 6259362 | System for conveying vehicle status information upon exit from a vehicle A system (10) for a vehicle (12), wherein the system includes transmitter components (26, 28), located at the vehicle, that are operable to send communication that conveys a vehicle system status. A portable receiver unit (14) is operable to receive the c... | 07/10/2001 |
| 6222441 | Process and circuit for connecting an actuator to a line An improved circuit and method for connecting a device to an actuator-sensor interface ("ASI") bus. The circuit provides the proper AC and DC coupling between the device and bus during normal operation, while providing AC and DC decoupling in the event of... | 04/24/2001 |
| 6169650 | Single access control system and method A way of controlling access to golf cart starter keys, (referred herein as user-keys) is described. A specially coded and specially shaped key, the user-key is given to a golf cart renter once an appropriate rental fee has been paid. In order to start the... | 01/02/2001 |
| 6111504 | Electronic equipment security and recovery system The present invention describes an apparatus and method for an electronic equipment security and recovery system in which the disconnection of electrical power and subsequent movement of the equipment automatically renders the equipment inoperative. Upon ... | 08/29/2000 |
| 6108188 | Electronic locking system with an access-control solenoid An electronic locking system with an access-control solenoid for controlling the operation of a locking mechanism is substantially immune to "hot-wiring." The locking system includes an actuating circuit for energizing the access-control solenoid. The act... | 08/22/2000 |
| 6100607 | Safety method and device for full-voltage power supply to a user apparatus only when required, and control assembly comprising such a safety device A method of detecting a condition requiring connection of a user apparatus with a feeder line comprises the steps of low-voltage power supplying the user apparatus through a detection impedance (17, 17a); detecting the waveform at the ends of the detectio... | 08/08/2000 |
| 6075356 | Power supply control unit for a lamp A power supply control unit for a lamp having a luminous means and an at least partly electrically conductive lamp housing comprises a first and a second line via which a power supply signal can be applied to the luminous means and which are insulated fro... | 06/13/2000 |
| 6028760 | Resonant power converter for energizing a coil A pulse generator is provided for energizing a coil with period bipolar current pulses for the purposes of airborne prospecting. The pulses have a generally square waveform, and the pulse generator includes a resonant DC to AC converter circuit including ... | 02/22/2000 |
| 5973411 | Apparatus for protecting motor vehicle against unauthorized operation An antitheft apparatus for a motor vehicle can allow operation of an internal combustion engine of a motor vehicle to be started notwithstanding of decision of discrepancy in an engine start enabling signal ascribable to transient error in communication b... | 10/26/1999 |
| 5905446 | Electronic key system An electronic security system for controlling access to a plurality of storage locations. The system includes an electronic lock associated with each storage location, a central control terminal for controlling operation of the security system, a programm... | 05/18/1999 |
| 5872513 | Garage door opener and wireless keypad transmitter with temporary password feature A garage door opener system includes providing temporary access permission for some user or users while maintaining near permanent access permission for other users. The temporary access permission may be controlled by number of uses or a predetermined am... | 02/16/1999 |
| 5841363 | Locking system especially for automobiles A locking system for an automobile, comprises an operating key, an operating key receptacle and an associated operating unit. The operating key and the operating key receptacle have first means for transmitting a first coded operating signal from the oper... | 11/24/1998 |
| 5781398 | Dual fault tolerant actuator control system A dual fault tolerant control system for controlling power delivered to an actuator from a power source includes decoders which accept commands representing the length of time power is to be applied to the actuator. Controllers process the command and con... | 07/14/1998 |
| 5684454 | Anti-vehicle-thief apparatus An anti-vehicle-thief apparatus having an immobilizer unit for comparing a specific first code received from a transponder to a stored code just after an engine is started, and when these codes are identical, outputting a second code to an EGI unit, the E... | 11/04/1997 |
| 5673017 | Remote vehicle starting system A system for remotely starting a motor of a vehicle and also capable of operating various vehicle accessories such as alarm system, door locks, door windows, trunk latch, etc. The system comprises a portable hand-held transmitter generating a command in t... | 09/30/1997 |
| 5617082 | Electronic access control device utilizing a single microcomputer integrated circuit An electronic access control system for controlling a lock in which the inputs and outputs are multiplexed, the electrically programmable read only memory is written to and read from in a serial manner, and the operator can disable access codes and enable... | 04/01/1997 |
| 5614883 | Automotive opto-electric starter interlock An automotive opto-electric starter interlock for use in a motor vehicle for the purpose of preventing the engine from being remotely started unless the transmission is in neutral. The starter interlock includes an optical sensors array mounted to the tra... | 03/25/1997 |
| 5530615 | Method and apparatus for enhancing relay life An electronic control for gas furnaces controls a two speed main blower fan and an induction draft fan based on 24 volt input signals from a room thermostat, a high limit and an ignition control including a gas valve. The input signals are coupled to inpu... | 06/25/1996 |
| 5508569 | Battery driven equipment having a locking mechanism Disclosed herein is a battery driven equipment including an equipment body, a battery pack detachably mounted in the equipment body, a locking mechanism for releasably locking the battery pack with respect to the equipment body, a device for determining w... | 04/16/1996 |
| 5479151 | Electromagnetic door lock with on-board programmable access control An electromagnetic door lock system employs an on-board microprocessor which is mounted in the housing for the electromagnet. The microprocessor is pre-programmed with possible operating parameters which are then selected at the installation site. In one ... | 12/26/1995 |
| 5410444 | Electronic control system for a locked drawer An electronic control system (10) for use in controllably unlocking a locked drawer. Portions of the system (10) are located in the vicinity (12) of the locked drawer and portions are located in a remote location ( 11 ). The system (10) includes an operat... | 04/25/1995 |
| 5402303 | Remotely-powdered and remotely-addressed zero-standby-current energy-accumulating high-power solenoid drivers, particularly for systems that are micropowered One or more loads, commonly solenoids, requiring a high-power drive--typically 500 ma. 7.5 v.d.c.--are selectively actuated by energy that is accumulated over time--typically over several hundred milliseconds--within associated, addressable, energy-accumu... | 03/28/1995 |
| 5397929 | Integrated outlet for communications and electrical power The present invention relates to an integrated outlet that allows supply of AC power to an outlet receptacle when certain conditions are satisfied. The integrated outlet contains separate modules establish electrical connection with electrical conductors ... | 03/14/1995 |
| 5270900 | Solenoid response detector An apparatus for energizing the coil of, and detecting the resultant armature actuation in, a solenoid of the type having a movable armature reciprocable along an axis between first and second positions, a spring bias normally biasing the armature toward ... | 12/14/1993 |
| 5252960 | Secure keyless entry system for automatic garage door operator A secure, keyless secondary transmitter unit for use in an automatic garage door operator transmits a code set by a code setting device as modified by digits entered at a keyboard. A controller constructs an identification code by inverting bits of the co... | 10/12/1993 |
| 5138986 | Internal combustion engine starting control to prevent unauthorized starting A novel machine with an internal combustion engine, and practical use-control means to prevent an unauthorized person from starting such engine, and anti-bypass means to prevent a knowledgeable prepared unauthorized person from defeating use-control means... | 08/18/1992 |
| 5041810 | Antitheft device for an automobile Automobiles such as a cash carrying car, truck, police car and so on, are prevented from being ridden away during loading or unloading cash or goods or being robbed by robbers after having been forcibly stopped on road. When a door of the automobile is op... | 08/20/1991 |
| 5021916 | Theft deterring security system for attachment to powered appliances A security device intervenes in the primary power input connection to an existing appliance. The user must set numbered thumbwheels to a correct numerical sequence preset through those same thumbwheels by the appliance owner before the device will connect... | 06/04/1991 |
| 4964014 | Solenoid valve driver A solenoid current control system includes a microprocessor which periodically generates a desired peak current value and which energizes the solenoid coil. Current through the coil is sensed via a series resistor and the sensed current is compared to the... | 10/16/1990 |
