Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7385522 | Portable alarming security device A portable security device for displaying articles of merchandise in a retail environment has a base formed with a plurality of holes arranged in predetermined patterns for mounting the device on a plurality of different support structures. A housing containing an a... | 06/10/2008 |
| 7375617 | Evacuation appliance An evacuation appliance comprising a mounting plate configured to be connected to a wall, with the mounting plate having a terminal clip. The evacuation appliance further includes a notification device having at least one notification member, with the notification d... | 05/20/2008 |
| 7336165 | Retrofitting detectors into legacy detector systems The disclosure includes improvements in the field of retrofit-detector installation such as adapters that simplify retrofit of addressable detectors onto previously installed zone-type system hardware. Each adapter includes electrical circuitry for electrically conn... | 02/26/2008 |
| 7193507 | Siren housing A siren housing has a dish-shaped base having a back wall adapted to be secured to as support structure. The base is configured and dimensioned to contain siren components. A post projects forwardly from the back wall. The post has a cylindrical sidewall terminating... | 03/20/2007 |
| 7183918 | Intermediate cover board with concealed security device for hard cover product An intermediate cover board for assembly of hard cover products, in which a primary sheet having a first thickness and opposing planar surfaces defines an opening in a selected portion of the sheet. The opening receives a security device. A pair of opposing secondar... | 02/27/2007 |
| 7170998 | Door access control and key management system and the method thereof A door access control and key management system is disclosed, in which a number of doors and door users are involved. The system comprises a door/key administering system and a door lock/control assembly mounted on each door, which are communicatively interconnected... | 01/30/2007 |
| 7170417 | Decorative cover for smoke detectors and like devices A decorative cover for smoke detectors and like devices mounted on a wall or ceiling provides a cover member of a generally opaque material approximately the shape of the device it is covering and somewhat larger than the device to be covered. The cover is provided ... | 01/30/2007 |
| 7164337 | Splash proof electromagnetic door holder A splash proof electromagnetic door holder is sealed to prevent failures caused by exposure to moisture. The electromagnetic door holder comprises a ground box, a main housing attached to the ground box, and a coil assembly attached to the main housing. The coil ass... | 01/16/2007 |
| 7123158 | Life safety alarm with a sealed battery power supply A life safety alarm, for example a smoke alarm, that is battery powered, has an extended life, and is less prone to user mistakes. The batteries are sealed inside the alarm portion so that the batteries cannot be accessed by the user. As a result, the batteries are ... | 10/17/2006 |
| 7116241 | Removable memory cartridge system for use with a server or other processor-based device A processor-based device having a plurality of memory cartridges secured within a chassis by a lever system. The processor-based device comprises an indication system to indicate memory system operating conditions. Each memory cartridge has a protective assembly to ... | 10/03/2006 |
| 7069090 | Systems and methods for providing variable output feedback to a user of a household appliance An embodiment of the present invention uses an on-board microcontroller of a household appliance to receive signals from a directionless encoder attached to a knob for receiving user input and processing the signals from the direction encoder according to a control ... | 06/27/2006 |
| 7009506 | Electronic monitoring device and patch assembly A monitoring device and patch assembly includes a patch that removably and re-attachably holds the monitoring device. The patch is adapted to connect the monitoring device to a pneumatic tire when the monitoring device is held by the patch. The patch is configured t... | 03/07/2006 |
| 7005996 | Power distribution panel with modular inserts A power distribution panel with a chassis defining an interior with a first opening and a second opposing opening. The panel including a module with a bottom, a first face and a second face, and including a power input terminal, a plurality of power output terminals... | 02/28/2006 |
| 6989748 | Battery with integrated tracking device A system for selectively detecting the presence of one or more objects in proximity to a person. The system includes one or more child units each having a first communicating device (such as a transceiver) for sending a locator signal and for receiving a control sig... | 01/24/2006 |
| 6975241 | Removable memory cartridge system for use with a server or other processor-based device A processor-based device having a plurality of memory cartridges secured within a chassis by a lever system. The processor-based device comprises an indication system to indicate memory system operating conditions. Each memory cartridge has a protective assembly to ... | 12/13/2005 |
| 6933854 | Security bulb assembly A security bulb assembly for providing a user with a home or building security device that would allow a user to convert an existing motion detector security light into a combination security light and audible alarm. The security bulb assembly includes a main housin... | 08/23/2005 |
| 6756905 | Photoelectric smoke detector and chamber therefor A smoke detection chamber for use in a photoelectric smoke detector. The smoke detection chamber comprises a side wall with a double row of generally rectangular vanes arranged to provide a labyrinth extending generally around the entire side wall for ingress and eg... | 06/29/2004 |
| 6747575 | Parking meter smart housing with electronic memory The invention is directed to an electronic parking meter and a method of configuring an electronic parking meter. In addition to a meter housing and an electronic metering mechanism within the housing, the parking meter includes a memory positioned within the housin... | 06/08/2004 |
| 6747563 | Removable memory cartridge system for use with a server or other processor-based device A processor-based device having a plurality of memory cartridges secured within a chassis by a lever system. The processor-based device comprises an indication system to indicate memory system operating conditions. Each memory cartridge has a protective assembly to ... | 06/08/2004 |
| 6696967 | Ambient condition alarm for connecting to a light fixture Provided is an alarm for detecting radiation, smoke and/or other air pollutants and includes detection means, first means for connection to a light fitting, and second means for connection to a light source. Electrical connection means connects the first ... | 02/24/2004 |
| 6690288 | Portable emergency response system An emergency response system including a smoke detector and an evacuation guide. The emergency response system and evacuation guide are separate components removably attached to each other, and each has a shape that includes a long, narrow neck and a curv... | 02/10/2004 |
| 6608564 | Removable memory cartridge system for use with a server or other processor-based device A processor-based device having a plurality of memory cartridges secured within a chassis by a lever system. The processor-based device comprises an indication system to indicate memory system operating conditions. Each memory cartridge has a protective a... | 08/19/2003 |
| 6518886 | Protective permanent housing for anti-theft tag A protective housing for an electronic article surveillance (EAS) tag is adhered directly to an article with an adhesive layer that is difficult to remove. The housing comprises a cavity defined by a base and rectilinear side walls, with the EAS tag secur... | 02/11/2003 |
| 6275170 | Universal adaptor for electronic parking meters A universal adaptor for use with electronic parking meters which provides these electronic parking meters with the ability to detect the presence of a parked vehicle and to adjust the position of the detector for accomplishing the vehicle detection, to ga... | 08/14/2001 |
| 6271763 | Audible and audible-visible alarms with interchangeable cover The bases of an audible alarm unit and an audible/visible alarm unit are configured to be used interchangeably with a single cover. The cover has an opening that receives a projecting wall portion on the base of the audible alarm unit and a receptacle for... | 08/07/2001 |
| 6259363 | Detector removal signalling device A signalling device applies a pulsating signal to supply lines when a head is removed from a base. A monitoring system includes a plurality of such signalling devices and is responsive to the pulsating signal to indicate the absence of a head from its bas... | 07/10/2001 |
| 6222453 | Apparatus for holding a compact disk and accepting affixation of an electronic anti-theft tag An improved apparatus for holding a compact disk such that an electronic anti-theft tag may be affixed thereon flush with the base of the apparatus such that labeling or shrink wrap may be placed flush on the base, concealing the anti-theft tag without ha... | 04/24/2001 |
| 6208262 | Floor condition sensor A floor sensor assembly includes a receptacle having at least one first electrical contact and a first substantially flat surface partially defining a floor surface. A sensor device is detachably secured to the receptacle and includes at least one second ... | 03/27/2001 |
| 6195015 | Electronic parking meter An electronic parking meter which is capable of detecting presence of a parked vehicle, keeping track of the amount of money, including both U.S. and foreign coinage, in the meter, gathering statistics on the parking space and the meter, alerting the park... | 02/27/2001 |
| 6181244 | Construction site portable monitoring system A portable monitoring system for use at sites, such as construction sites, is provided. The portable monitoring system can provide enhanced security at such sites and may be quickly set up and taken down. A portable monitoring system, in accordance with o... | 01/30/2001 |
| 6160487 | Single lockout mechanism for a multiple battery compartment that is particularly suited for smoke and carbon monoxide detector apparatus A single battery lockout mechanism for a multiple battery compartment in an electrical unit, preferably a smoke detector or a carbon monoxide detector. The lockout mechanism prevents the battery compartment from being enclosed when fewer than all batterie... | 12/12/2000 |
| 6087938 | Outdoor intrusion detector An intrusion detection assembly including an intrusion detector including an inner housing, a detector disposed within the inner housing and a lens for focusing light from outside the inner housing onto the detector, and an outer housing which is generall... | 07/11/2000 |
| 6078272 | Universal adaptor for electronic parking meters A universal adaptor for use with electronic parking meters which provides these electronic parking meters with the ability to detect the presence of a parked vehicle and to adjust the position of the detector for accomplishing the vehicle detection, to ga... | 06/20/2000 |
| 6057778 | Modular interchangeble cover system A family of covers having identical indented base regions for receiving a plurality of diverse alarm indicating and/or condition-sensing modules thereon. The alarm indicating modules each have a common "footprint" for being snugly received into the indent... | 05/02/2000 |
| 6049287 | Door with integrated smoke detector and hold open A door has a first outer face having an opening therein and a second outer face spaced a predetermined distance apart from the first outer face. A hold open device is located substantially between the first and second outer faces. The hold open device hol... | 04/11/2000 |
| 5969627 | Audible and audible-visible alarms with interchangeable cover The bases of an audible alarm unit and an audible/visible alarm unit are configured to be used interchangeably with a single cover. The cover has an opening that receives a projecting wall portion on the base of the audible alarm unit and a receptacle for... | 10/19/1999 |
| 5574436 | Smoke detector including an indicator for indicating a missing primary power source which is powered by a substantially nonremovable secondary power source A smoke detector having an audible missing primary power source indicator, capable of indicating the absence of a primary power source powering the detector is provided. A missing power source circuit, including a supplementary power source having an effe... | 11/12/1996 |
| 5367293 | Mechanically actuatable alarm disable assembly A mechanically actuatable assembly for disabling an alarm device includes a guide housing positioned stationarily relative to the alarm device to be disabled and defining an interior guide passageway axially aligned with an active portion of the alarm dev... | 11/22/1994 |
| 4646071 | Infrared-ray sensitive alarm device built into electronic equipment An alarm device is built into electrical equipment such as a portable radio receiver or tape recorder and connected to a loud speaker unit for producing an alarm sound by sensing infrared rays emitted from an intruder and sensed by an infrared ray detecto... | 02/24/1987 |
| 4335375 | Container for an alarm transmitter adapted for insertion into a wall A container for an alarm transmitter used in combination with components of a transmitter circuitry which includes voltage control for providing a gated voltage and controlled by a timing circuit. The components also include an audio multivibrator which i... | 06/15/1982 |
