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| Number | Title | Issue Date |
| 7034902 | Image display system, image display apparatus and peripheral devices of image display apparatus An image display system has an image display apparatus and a peripheral device that can be mounted on the image display apparatus. The image display apparatus includes a first electrode for electrically connecting the image display apparatus and peripheral device, a... | 04/25/2006 |
| 5640148 | Dual activation alarm system A holder for a personal alert safety system (PASS) has a bracket to receive the PASS, and a housing connected to the bracket. An additional activation switch is installed in the PASS, the additional switch being magnetically operable. The housing is conne... | 06/17/1997 |
| 5461363 | Alarm apparatus containing security and safety monitors A safety apparatus for a passage controlled by means of a first member and a second member, has a first device for detecting opening of the passage, a second device for detecting fierce knocking on the first and second members and a third device for detec... | 10/24/1995 |
| 5154481 | Vehicle roof with solar power source and contact device Vehicle roof with at least one cover that, alternatively, closes or at least partially opens an opening in a fixed roof surface of the vehicle, carries a solar power source for supplying power to at least one power consuming device that is separately loca... | 10/13/1992 |
| 4688023 | Container having child safety device and alarm A container for storing items, such as guns and knives in a secure environment so that such items are not accessible to small children. The container has an open top and a cover member which is slidable along the major axis of the container to selectively... | 08/18/1987 |
| 4556765 | Security interface system for a door, window or the like A contact unit for use in a security system for monitoring a structural opening such as a door or a window. The contact unit includes a housing of electrically insulation material, and an elongated resilient electrically conductive member that has one end... | 12/03/1985 |
| 4347502 | Early warning electrical sound alarm system for pet door structure The present invention provides an early warning sound alarm system for signalling unauthorized entry or attempted entry through a pet door when the pet door is covered and not in use. The alarm system in accordance with the invention, comprises in combina... | 08/31/1982 |
| 4231030 | Safety device for a crib A safety device for a crib which provides an indicating light or alarm to alert a person to the fact that the crib gate is in a down position, to prevent the leaving of a child in a crib with the gate down and to insure that the crib gate is up and locked... | 10/28/1980 |
| 4225857 | Spring loop door and window alarm switch A strip of conductive spring material is formed in a loop with extending ends adapted to be clamped together by closed doors and windows. In one embodiment, a conductive rod member has a hook at one end, the other end of the rod member being fixedly conne... | 09/30/1980 |
| 4206452 | Tension cord burglar-alarm Members are attachable to the window or door around which a cord can be stretched, under tension, in the form of a polygon. A switch is positioned within the polygon, said switch being attached by further cords to two of the sides of the polygon. The swit... | 06/03/1980 |
| 4151382 | Switch assembly for alarm systems A switch assembly utilized for interconnecting foil conductors on a window or the like with a burglar alarm system. The switch assembly comprising a first switch unit adapted to be mounted on a movable window or the like, with a second switch unit adapted... | 04/24/1979 |
| 3967164 | Service access control panel having electrical component array, interlock switch and fuse block A control panel for an electric oven providing easy access to service the components on the rear of the panel. The panel has a component shelf supported from the rear thereof and a pair of slides which permit the panel to be pulled forward and away from a... | 06/29/1976 |
| 3942176 | Ultrasonic alarm system An ultrasonic alarm system comprising a transmitter having an oscillator which produces an ultrasonic carrier frequency signal. An audio signal generator produces a signal which modulates the carrier signal. The modulated signal is applied to a crystal th... | 03/02/1976 |
