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| Number | Title | Issue Date |
| 7365637 | Reversible diode doorbell detection circuit A doorbell detection and playback circuit for a doorbell pushbutton connected to an alternating current power source comprises at least one bridge rectifier circuit coupled to the power source through a diode placed in parallel with the pushbutton. The bridge rectif... | 04/29/2008 |
| 6867690 | Active magnetostrictive sensor for automotive horn or occupant weight sensor An improved force-measurement system utilizes active magnetostrictive sensors for generating a signal representative of a force, such as the weight of a person or thing on a seat within a motor vehicle, or the force applied to the horn sensor switch on a vehicle ste... | 03/15/2005 |
| 6762740 | Apparatus for lighting a display in a color dependent on information and method therefor A display lighting apparatus is disclosed, that comprises a first storing means for storing date information, a second storing means for storing color information correlated with the date information, a displaying means for displaying information, a lighting means f... | 07/13/2004 |
| 6239726 | Pushbutton arrangement A pushbutton arrangement includes a pushbutton switch mounted on a substrate and the pushbutton switch has an actuating position. The pushbutton arrangement further includes a supporting member fixed to the substrate and a button operation member for push... | 05/29/2001 |
| 6081184 | Self-protected, low emission electronic device for driving a warning horn A self-protected, low emission electronic device for driving a warning horn includes a coil powered from a battery through a control push-button adapted for operation by a user and included in an electric connection between a terminal of the coil and the ... | 06/27/2000 |
| 6028504 | Removable door chime The present invention provides a decorative door chime particularly well suited to festive occasions. The chime includes a speaker which is suspended on one side of the door by a strap, and a door-knocker actuated trigger switch suspended on the other sid... | 02/22/2000 |
| 5914650 | Removable door chime The present invention provides a decorative door chime particularly well suited to festive occasions. The chime includes a speaker which is suspended on one side of the door by a strap, and a door-knocker actuated trigger switch suspended on the other sid... | 06/22/1999 |
| 5883570 | Decorative door bell actuator The invention is a decorative cover/actuator which can be used as a stand alone device or in combination with a door bell. The cover is pivotally mounted on a surface with an adjustable lever extending out the back of the cover. When the cover is pressed ... | 03/16/1999 |
| 4868540 | Programmable doorbell control A programmable doorbell system includes a solid state battery powered doorbell controller for connection to existing doorbell circuitry of a house, three segment display, doorbell control circuit, tone generator, control switches, and power source. The pr... | 09/19/1989 |
| 4823112 | Multi-function electric bell The sound producing device is composed of three independent parts: (1) a push-button for generating a sound-wave; (2) an assembly comprising a sound-wave sensing switch, a magnet and magnetic-reed switch, an integrated circuit amplifier and a door bell; a... | 04/18/1989 |
| 4243973 | Home integrated signal system A coordinating unit receives an input signal from the ringing circuit of a telephone, a doorbell switch, the timer of a washing machine, or the like. The coordinating unit, through a program muting circuit reduces the volume of televisions, radios, or the... | 01/06/1981 |
