Bizarre Patents
Hands free towel carrying system
A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.
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 |
| 7315234 | Load control apparatus and load control system A load control apparatus is connected to a master station through a power line supplied with direct-current power. The load control apparatus is driven by the direct-current power supplied from the power line to communicate with the master station through the power ... | 01/01/2008 |
| 7259687 | System and method for distributing module phase information A multi-module DC-DC converter provides synchronization between modules based on identification of a module within a chain. A resistor network can be used for the chain so that each module obtains a particular voltage based on its position within the chain. A master... | 08/21/2007 |
| 7218223 | Magnetic field sensing for tamper identification The present technology involves a method and apparatus for detecting and reporting magnetic fields in the proximity of a utility meter as an approach to determining tampering of such meter. The sensitivity level of the magnetic field sensors may be adjustable allowi... | 05/15/2007 |
| 7187193 | MCU test device for multiple integrated circuit chips A testing device for testing integrated circuits is disclosed including a first board configured to connect to a specific integrated circuit being tested. A second board is removably connected to the first board and is configurable to test a variety of integrated ci... | 03/06/2007 |
| 7091872 | Controlled power source for underground line location A transmitter for a line locator system that controls the electrical current, voltage or power applied to the target line is disclosed. Control of the electrical output of the transmitter can be achieved passively or by means of a feedback control system. A transmit... | 08/15/2006 |
| 7062975 | Sensor with data storage medium A sensor assembly including a sensor and a data storage medium, on which the specific data of the sensor, such as type, measurement range, calibration date, serial number, manufacturer, etc. are stored. The data may be directly transmitted from the data storage medi... | 06/20/2006 |
| 7053774 | Alarming merchandise display system A display system for displaying an item of merchandise in a retail environment that allows a potential customer to handle the item while it is secured to the display system. The item is supported on a display shelf and is connected to a retractable cable. The shelf ... | 05/30/2006 |
| 7030623 | Electrical short tracing apparatus and method A vehicle testing apparatus and method which facilitates tracing and isolating of short circuits. The tester preferably provides a user-selected constant current level (i.e. 1, 3 and 6 amperes) for driving a vehicle short under test at a constant current level compa... | 04/18/2006 |
| 6972604 | Circuit for compensating LPF capacitor charge leakage in phase locked loop systems The present invention provides for a low pass filter. A first capacitor, has a first associated leakage current. A second capacitor has a specified capacitance that is a fraction of the capacitance of the first capacitor, the second capacitor further having a second... | 12/06/2005 |
| 6727815 | Fire alarm system A fire alarm system may comprise a control center, a wired communication pathway connected to the control center, and a relay station having a receiver and a signal evaluation circuit connected to the communication pathway. First decentralized alarm boxes may be wir... | 04/27/2004 |
| 6714832 | Operating method of vacuum processing system and vacuum processing system A method of operating a vacuum processing system including a plurality of processing units for processing wafers, a transferring unit for carrying the wafers and a control unit for controlling the processing units and the transferring unit. At least two of the plura... | 03/30/2004 |
| 6518879 | Apparatus and method for monitoring line disconnection and a fire, and a fire alarm system having the same A fire alarm apparatus, for checking line disconnection or occurrence of a fire, regardless of the installation place of a terminal endpoint resistor installed for checking disconnection of a line of fire detectors. When a signal representing a present vo... | 02/11/2003 |
| 6384723 | Digital communication system and method A communication protocol facilitates transmission at maximum rates for various types of cables. Signal to noise characteristics are improved by using voltage waveforms. The protocol can be used to transmit information between a common control unit and a p... | 05/07/2002 |
| 6307469 | Remote detection device The present invention provides a remote detection device including a conventional measurement device, such as a thermostat, having an internal contact which is wired in series with a resistor and two wires of a standard telephone line. When the measuremen... | 10/23/2001 |
| 6281789 | Alarm system having improved control of notification appliances over common power lines An alarm system which includes multiple notification appliances for signaling an alarm condition. The system controller intelligently controls the notification appliances including notification devices such as an audible or visual alarm through multi-bit ... | 08/28/2001 |
| 5694114 | Coherent alarm for a secure communication system A high speed secure fiber optic communication system that includes a coherent alarm system utilizes a pair of single mode fiber optic cables in combination with one or more light sources, phase modulators, detectors and polarization scrambling elements to... | 12/02/1997 |
| 5670937 | Line monitor for two wire data transmission A line monitor uses two wire data transmission in a fire alarm and detection system. A line voltage monitoring mechanism is within each wiring/contact monitoring circuit such that the exact value at any time of varying source voltage is known. The monitor... | 09/23/1997 |
| 5489888 | Sensor system for contactless distance measuring A sensor system is disclosed for the contactless measuring of the distance between a sensor body and an object. The sensor body contains an identification resistor, the resistance value of which can be interrogated by a control unit which is connected to ... | 02/06/1996 |
| 5382909 | Method for detecting and obtaining information about changes in variables Detection of liquid leaks and other changes in variables is disclosed. The event causes two elongate conductors to become electrically connected at a location which is determined by the event, thus creating a system in which the connection point can be lo... | 01/17/1995 |
| 5015958 | Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors Detection of events, e.g. liquid leaks and other changes in varibles. The event causes two conductors to become electrically connected, and thus creating a system in which the connection point can be located by measuring the potential drop from one end of... | 05/14/1991 |
| 4999607 | Monitoring system with improved alerting and locating An expansive and expandable monitoring system which in one of its broadest embodiments includes a multi-sector, multi-condition monitoring system including radio linked alert monitors, smoke monitors and an expandable range of activity monitors such as do... | 03/12/1991 |
| 4881060 | Fire alarm system An improved alarm system and method for use in a fire detection system of the type including at least one sensor for sensing the level of a parameter of a fire condition such as heat or smoke density and which transmits electrical signals indicative of th... | 11/14/1989 |
| 4857828 | Method and apparatus for detecting presence of objects A system for capacitively detecting the presence of a tape cassette within a vending machine or the like. The testing system within the machine employs an ac source connected to a source electrode and a detector connected to a detector electrode. A coded ... | 08/15/1989 |
| 4777473 | Alarm system incorporating dynamic range testing An alarm system incorporating a dynamic range testing feature whereby the system polls and tests, on a regular basis, the resistance of the circuits of alarm condition resistor elements in the alarm system, primarily to detect when the circuit of a resist... | 10/11/1988 |
| 4777378 | Information handling and control systems, manually operable electrical switches for use in such systems, and methods of testing such switches in such systems A manually operable electrical toggle switch (60) is connected in a low current signalling link (40) via a non-intelligent slave unit (20) in a time slot assignment multiplex system for automotive vehicles to an intelligent master unit (10) which in respo... | 10/11/1988 |
| 4751498 | Single-wire loop alarm system A single-wire loop alarm system in which an identification module is placed across each alarm switch. Any module which is across an open switch is powered by the loop current and, in response to a pulse count in the loop representing its address, changes ... | 06/14/1988 |
| 4711368 | Tamper proof package with electrical circuit A tamper proof package for determining whether or not a package has been opened or tampered with before opening the package is provided. The package has an electrical conductor of known resistance which is so positioned that any attempt to open the packag... | 12/08/1987 |
| 4586028 | Alarm system Alarm system providing a signal by turning on alarms, lights, sirens, automobile horns or wake-up signal based on interruption of a monitor loop. Monitor loop includes a resistor which connects to the inputs of a low-power low-offset voltage dual comparat... | 04/29/1986 |
| 4514720 | Method and apparatus for increasing the response sensitivity and the interference resistance in an alarm system A method and apparatus for increasing the response sensitivity and the interference resistance in an alarm system such as a fire alarm system which cyclically samples a plurality of alarm units in the system for obtaining a series of measured values from ... | 04/30/1985 |
| 4491828 | Two-wire multi-zone alarm system A multi-zone alarm system operative with a two-wire alarm loop and having a simple network at each alarm sensor for providing a coded signal indicative of sensor identity and relatively simple circuitry at a central location for interrogation of the remot... | 01/01/1985 |
| 4467273 | Interchangeable component identification system Disclosed is a system for identifying which one of a plurality of interchangeable transducer heads is connected with an ultrasonic scanner. The system includes a unique impedance mounted on each transducer head and an impedance determining circuit in the ... | 08/21/1984 |
| 4441100 | Electrical circuits A security installation has four, for example, normally-closed sensor switches which open in the presence of an intruder. Each switch is in series with a respective resistor and these series combinations are connected in parallel across a pair of bus line... | 04/03/1984 |
| 4435700 | Event detection and indication system The detection of events such as illegal entry detection, or the occurrence of predetermined hazards are detectable by a system including a circuit loop 2 which incorporates event actuatable switches 1, 35, 37, 38. Each switch has associated therewith mean... | 03/06/1984 |
| 4423410 | Two-wire multi-zone alarm system A multi-zone alarm system operative with a two-wire alarm loop and having a simple network at each alarm sensor for providing a coded signal indicative of sensor identity and relatively simple circuitry at a central location for interrogation of the remot... | 12/27/1983 |
| 4401949 | External device identification system An identification circuit for use in conjunction with an automobile engine analyzer system having a plurality of external probes is disclosed. The various probes and other external devices associated with the automobile engine analyzer each include a pass... | 08/30/1983 |
| 4385287 | Multiple alarm condition detection and signalling A security system has a locality station sensing security risks such as fires, electrical faults and break-ins, being powered by a single line from a central station. The loading on the power supply is determined by logic circuits to give direct remote in... | 05/24/1983 |
| 4380070 | Automatic circuit identifier A hand held apparatus for automatically identifying a hybrid or monolithic integrated circuit or any standard circuit module having a known pin configuration (10) and an unknown identity. A plurality of test instructions (FIG. 6 ) for devices of known ide... | 04/12/1983 |
| 4361833 | Multi-sensor alarm system and method of protecting a premises A multi-sensor alarm system and method of protecting a premises include at least one sensor circuit and an alarm circuit which together establish a two-wire closed loop electrical circuit path in which a wide variety of alarm sensors are accommodated. The... | 11/30/1982 |
| 4359721 | Two-wire multi-zone alarm system A multi-zone alarm system operative with a two-wire alarm loop and having a simple network at each alarm sensor for providing a coded signal indicative of sensor identity and relatively simple circuitry at a central location for interrogation of the remot... | 11/16/1982 |
| 4339746 | Alarm control center An alarm control center having means for interchangeably assigning alarm parameters for each sensor loop in an array of sensor loops and for interchangeably assigning alarm outputs for each of the sensor loops. When the alarm control center senses an alar... | 07/13/1982 |
