Abstract: A vibration sensor includes a first pawl having a first connection leg and a plurality of first prongs extend from the first connection legs. A second pawl has a second connection leg and a plurality of second prongs extend from the second connection leg. The first prongs are arranged alternatively located between the second prongs so as to define a space and a ball is located in the space and in contact with one of the first prongs and one of the second prongs. When a vibration is detected, only one or none of the first prongs and the second prongs is not in contact with the ball, and a signal is sent by the legs.

Abstract: A lamp assembly includes a base and a post extending from the base. A socket is connected to a top of the post and has an aperture. A control member and a pull switch are received in the socket and connected to each other. An electrical cable is connected to the control member via the base and the post. A bulb frame is connected to the socket and a first connection wire connected between the control member and the bulb frame. A second connection wire is connected between the pull switch and the bulb frame. A chain is connected to the pull switch and extends through the aperture of the socket. The control member is activated by touching the chain.

Abstract: A lamp assembly includes a base and a post extending from the base. A socket is connected to a top of the post and has an aperture. A control member and a pull switch are received in the socket and connected to each other. An electrical cable is connected to the control member via the base and the post. A bulb frame is connected to the socket and a first connection wire connected between the control member and the bulb frame. A second connection wire is connected between the pull switch and the bulb frame. A chain is connected to the pull switch and extends through the aperture of the socket. The control member is activated by touching the chain.

Abstract: A vibration sensor device includes a hollow casing having a plurality of protrusions extending from an inner periphery of the casing. A ball is received in the casing and located in contact with at least three of the protrusions. The ball freely rolls when the casing senses vibration and the ball contacts different protrusions when it rolls so as to activate a cooperated warning device.

Abstract: An overhead electric appliance combination control switch arrangement is constructed to include a mechanical switch connected to an overhead electric appliance, a pull line suspended from the mechanism switch and adapted for driving the mechanical switch to control the functioning of the overhead electric appliance when pulled by the user, and a photoelectric sensor connected to the pull line and adapted for controlling the functioning of the overhead electric appliance when the user touches the pull line with the hand or move the hand toward the photoelectric sensor.

Abstract: An innovated suspension cord pull switch, having a capacitive induction device, serving as a touch control with capacitive induction effect; wherein a capacitive sensor or device is connected to a suspension pull cord, so the suspension pull cord becomes a touch-type or non-touch control device having a sensor effect. Instead of conventional pulling operation, grasping operation, restricted direction of operation, and the extent of force in operation, the switch can be operated more easily, conveniently and quickly.

Abstract: A suspension cord switch includes a capacitive induction device serving as a touch control with capacitive induction effect, wherein a capacitive sensor or device is connected to a suspension cord. The capacitive induction device includes a contact unit hanged in a hollow touch unit and connected to a grounded conductive wire so that when the hollow touch is petted, the contact unit contacts the touch unit to activate the electric appliance connected with the suspension cord.

Abstract: A vibration sensor device includes a hollow casing having a plurality of protrusions extending from an inner periphery of the casing. A ball is received in the casing and located in contact with at least three of the protrusions. The ball freely rolls when the casing senses vibration and the ball contacts different protrusions when it rolls so as to activate a cooperated warning device.

Abstract: A device for activating a switch includes a thread connected to a switch and a hollow casing is connected to a free end of the thread. A body is received in the casing and a space is defined between the body and an inside of the casing. An earth line is connected to the body and extends through the casing so that when touching the casing or the earth line, the body is shake and contacts the inside of the casing to form a circuit to activate the switch.

Abstract: A control device for activating an electric appliance includes a conductive thread connected to and hanged on an induction control switch. An end piece which is a conductive member is connected to the conductive thread. A wire with a plug extends from a first end of the induction control switch so as to be plugged in a plug on a wall, and an electrical appliance is connected to a second end of the induction control switch. The electric appliance is activated by petting the conductive thread or the end piece.

Abstract: A vibration sensing assembly includes a vibration sensor which is connected to a thread and sends a signal to a signal control unit when a vibration is received by the vibration sensor. The signal control unit sends a signal to an activator such as a relay to activate a fan, light or the like. The signal sent to the activator may be sent by infra-red beam or electric wave, and the signal can be processed by encoding-decoding processes.

Abstract: A vibration sensing device has a spherical shell, an insulating cushion inserted in a top portion of the spherical shell, a conductive probe rod passing through the insulating cushion, a conductive thread connected to an end of the conductive probe rod, and a conductive plumb ball connected to the conductive thread. A conductive free ball is disposed in the spherical shell.

Abstract: A multifunctional sensing and control assembly has a hollow main casing, a control device disposed in the hollow main casing, a cover plate disposed on a front portion of the hollow main casing, and a lamp casing disposed on an upper portion of the hollow main casing. The hollow main casing has a chamber receiving cells, an inner block having two slots, a first upper notch, a plurality of positioning apertures, two lower oblong apertures, and two upper click hooks. The cover plate has a second upper notch, a plurality of lateral click hooks, a round opening, and a through aperture. The control device has an electric circuit board, a control board, and a horn inserted in the round opening.