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| Number | Title | Issue Date |
| 5739756 | Carbon monoxide detection system for motor vehicles A new carbon monoxide detector for motor vehicles for detecting dangerous levels of carbon monoxide within the passenger areas of motor vehicles. The inventive device includes a carbon monoxide detector mounted at the highest point within a passenger comp... | 04/14/1998 |
| 5612678 | Fire detector and device for detaching body thereof A fire detector consisting of a body and a base. An inner wall part is provided in a circumferential wall of the body in such a manner that the inner wall part can be cut away therefrom. Further, an engaging member abutting on the inner wall part is provi... | 03/18/1997 |
| 5596422 | NTSC or pal signal detecting circuit of a laser disk player system A circuit for detecting an NTSC signal or a PAL signal in a laser disk player system. In the laser disk player system, the circuit includes an FM video signal processing part for shaping a waveform of the FM video signal picked-up from the optical pick-up... | 01/21/1997 |
| 5594422 | Universally accessible smoke detector A wall-mounted stand-alone smoke detector has an elongated housing. The housing has two ends. One end forms a base. The other end houses a sensor head remote from the base. A rigid member supports the sensor and connects the sensor to the base. The sensor... | 01/14/1997 |
| 5568133 | Fire alarm Upon insertion of a fire alarm insert into a corresponding fire alarm mounting, the insert covers the mounting. The insert has a movable fastening comprising a ring, for example, for fastening the insert to the mounting. Indicator elements are included fo... | 10/22/1996 |
| 5555455 | Recessed fire detector The application describes a method and apparatus for detecting fire. The apparatus includes a fire detector and a mounting means adapted for attachment to both existing structures and new construction in such a manner as to not protrude into the interior ... | 09/10/1996 |
| 5469147 | Smoke detector device, especially for a space in an aircraft A smoke detector device for signalling a smoke detection in a space in an aircraft such as a cabin, a toilet, or a cargo hold of an aircraft, is mounted in a recessed position in a hole in a wall or ceiling of the aircraft. The device has at least one smo... | 11/21/1995 |
| 5221919 | Room occupancy sensor, lens and method of lens fabrication Apparatus for sensing occupancy of a room detects the infrared energy that is radiated by persons and may be used actuate any of a variety of devices such as electric lights, heating systems, air conditioners or alarms. Detection of persons throughout a b... | 06/22/1993 |
| 4990898 | Surface-mount intrusion detection switch housing A housing for a surface-mount magnet and magnetically sensitive switch unit pair for use in an intrusion detection device. The switch and magnet units include a generally cylindrical housing member formed with a hollow interior cavity, which contains the ... | 02/05/1991 |
| 4968975 | Self-penetrating remote sensing smoke detector A remote sensing smoke detector suitable for use in a building with hollow walls or ceilings defining inaccessable spaces such as attics, suspended ceilings or an attached closet, garage, or storage area having a main alarm and power source unit affixed o... | 11/06/1990 |
| 4903010 | Intrusion detection switch housing A threadably installable intrusion detection unit. The unit has a generally cylindrical housing with an exterior threaded surface and an end portion formed to receive a screw driver. An operative intrusion detection element, such as a magnetic or a reed s... | 02/20/1990 |
| 4896145 | Fixture for mounting a lampholder and fire detector A combined light and fire detector fixture mountable on a recessed electrical box having a housing, mounting means to mount the housing to the electrical box, a light fixture having lamp holding means, mounting means for mounting the light fixture to the ... | 01/23/1990 |
| 4887073 | Ceiling mounted fire detector assembly A ceiling mounted fire detector comprises a detector 10 and a mount base 20 installed into a ceiling surface 1. The detector 10 includes a sensor unit 12 which, upon sensing a fire condition, produces an electrical signal to be transmitted to a control ce... | 12/12/1989 |
| 4841288 | Earthquake illuminating device An illuminating device comprises a housing having a light compartment and an off push-button located on the front wall thereof. The housing encloses a battery powered electrical circuit including a normally-open motion detection switch, a light bulb, a la... | 06/20/1989 |
| 4839630 | Emergency signal device In a mobile home park having a source of a.c. house current, an emergency signal system for individual mobile homes includes a master unit including a step-down transformer electrically connected to the house current, an alarm circuit electrically connect... | 06/13/1989 |
| 4812827 | Detector and light assembly The detector assembly combines an electrically powered detector and alarm and an electrical light into a single unit which is removably attachable to a conventional electrical receptacle. The unit includes a closed housing containing a detector and alarm ... | 03/14/1989 |
| 4808977 | Electromechanical evacuation exit indicating flag An apparatus for indicating an emergency exit in case of fire in a building, includes a smoke alarm apparatus adapted to relay an electrical activating signal causing a luminous exit indicating flag to be projected outwardly from a wall adjacent an emerge... | 02/28/1989 |
| 4788530 | Remote switching device for smoke detector A switching device is enclosed in a casing fixed to a wall below a ceiling-mounted conventional smoke detector, so as to be accessible. The switching device includes a holding relay, a dry-cell battery and a time-delay circuit. The dry-cell battery replac... | 11/29/1988 |
| 4771273 | Anti-tamper bracket An anti-tamper bracket for use with a surveillance device, the bracket includes a bracket portion, a bracket cover, a trunnion, an adapter plug, a fastening means and a retaining plate, the bracket portion having a first through aperture formed therein, t... | 09/13/1988 |
| 4724430 | Fire detector A fire detector having a body comprising a cover part and a hood part and containing therein fire detecting means and electrical circuits, and a base detachably fastening the body by engaging means provided on them, respectively, is disclosed wherein in o... | 02/09/1988 |
| 4717910 | Detector and light assembly The detector and light assembly combines an electrically powered detector and alarm and an electrical light into a single unit which is removably attachable to a conventional light socket. The unit includes a closed housing containing a detector and alarm... | 01/05/1988 |
| 4702452 | Smoke detector mounting A method and apparatus for mounting a smoke detector to an existing ceiling fixture in a manner which preserves the surface of the ceiling. A plurality of attachment elements are connected to the smoke detector housing. A plurality of hangers are connecte... | 10/27/1987 |
| 4694285 | Combination electrical light, smoke and/or heat detector The combination is described of an electrical smoke, heat detector and electrical light in a single unit which is removably attachable to an electrical fixture. The combination includes a closed housing containing smoke heat sensing alarms. Also recessed ... | 09/15/1987 |
| 4359646 | Intrusion detecting switch An intrusion detecting switch is disclosed having an operator and a sensing device for sensing the detection of intrusions and to a protected area. The operator may be a magnet and the sensing device may be Hall effect switches the resistance of which wil... | 11/16/1982 |
| 4315594 | Connection apparatus for a fire alarm A connection apparatus for a fire alarm is composed of a socket portion intended to be secured in the space or area which is to be monitored and a fire alarm insert connectable by means of electrical and mechanical connection elements with the socket port... | 02/16/1982 |
| 4284981 | Sensor alarm and support A sensor alarm has a sensor for detecting heat, smoke, noxious gases, and the like and an alarm for warning of an alarm condition coupled to the sensor. The sensor alarm is attached to a support plate. An angled arm is formed at the upper edge of the plat... | 08/18/1981 |
