Abstract: A massaging rod that is generally Y-shaped with an ellipse end portion at a first end. One side of said ellipse end has a bossed tip and the opposite side has a mallet shape. The opposing end of the rod forms a fork-shape. The first tip of the fork-shaped end has a claw-shape configuration and the second tip is circular. A projected stem member having a circular end is provided at the center of the body. The periphery of the body is rounded to provide a sound massaging effect.

Abstract: A vehicle alarm system with two-stage disarming consists of a remote control unit, a receiver-decoder unit, a Central Processing Unit (CPU). When the alarm system is armed, the CPU continues to monitor the signals transmitted from the receiver-decoder unit. If no attack is made on the vehicle or no triggering signal is detected by the alarm system, pressing the remote control unit one time will disarm the alarm. When a triggering signal is detected, the siren will sound immediately and the signal lights will flash continuously. To turn off the siren and signal lights, the remote control unit can be pressed one time while the alarm system is continuously and fully armed. If the burglar goes on stealing the vehicle, the siren will sound and the parking lights will flash again as well as that the engine start is disabled. Such full protection remains until the car owner comes back to press the remote control unit twice to deactivate, the alarm.

Abstract: This speaker represents an improved trumpet horn speaker structure. A trumpet horn speaker is disclosed having a metallic heat sink, a lower magnetic pole mounted on the heat sink, a round permanent magnet mounted on the heat sink, an upper magnetic mounted on the heat sink, a damping bracket mounted on the heat sink, a plastic housing integrally mounted to the heat sink so that the upper magnetic pole, the lower magnetic pole and the round permanent magnet are thereby tightly secured to the plastic housing, the plastic housing providing a good waterproofing for the trumpet horn speaker and the metallic heat sink providing protection against over heating for the voice coil of the trumpet horn speaker.

Abstract: A cylinder lock which prevents picking is disclosed. The lock comprises an outer shell having a cavity therein, a plug having a hole and a plurality of circumferential apertures extending partially through the plug, with grooves around the openings of the apertures. The plug is snugly disposed in the cavity. Spring biased pins are slidably received in the plug apertures. The cylinder lock also has a shaft member disposed in the cavity with a flange portion extending outwardly from said shaft member. The flange portion has a plurality of apertures with grooves around the openings of the apertures which face the plug. The apertures extend through the flange portion, and are alignable with the apertures of the plug. The shaft member passes through the hole of the plug, and is adapted to be rotated. The flange portion fits snugly in the cavity. Pins are slidably received in the flange portion apertures.

Abstract: An "Automatic Exit Delay" circuit of a burglar alarm is placed on Stand-By whenever a "first" door is opened and the burglar alarm automatically starts to work right after the "last" door is closed. At that moment of arming a "Quiet Quick Test" Network automatically tests the alarm for proper functioning and generates a short "beep" to indicate such as well as the armed state of the alarm system.

Abstract: An improved quincunx-shaped lock device comprises a lower pin seat, a lower lock pin and a check ring. The whole lengths of the lower lock pins are different. The lengths of the pin head and pin tail having different outer diameters are also different. The bottom of the lower pin holes of the lower pin seat has pin-tail-through holes. The check ring is furnished with several irregular notches. Whenever the lower lock pins are pressed by a key other than that for the lock to the bottom of the lower pin holes, the pin tails will penetrate through the pin-tail-through hole, and some of them will touch the check ring, while others penetrate out of the notches of the check ring. Since numerous variations are designed in the lock, it is impossible to unlock it without the correct key.