Abstract: A cockroach trap includes a case including an opening and first and second compartments; a guide assembly disposed above the first compartment and including a channel communicating with the opening, and a bossed hole communicating with the channel; an open reservoir releasably disposed in the first compartment; a bait passageway in an upper portion of the reservoir and communicating with both the channel and the reservoir; an entrance sensor disposed proximate the channel; a pivotal trigger disposed above the second compartment and including a projection; and an air canister releasably disposed in the second compartment and including a plunger engaged with the projection, a nozzle, and a line having two ends connected to the nozzle and the bossed hole respectively. After the entrance sensor is activated, the projection presses the plunger to open the nozzle, thereby communicating the nozzle with the air canister.

Abstract: A cockroach trap includes a case including an opening and first and second compartments; a guide assembly disposed above the first compartment and including a channel communicating with the opening, and a bossed hole communicating with the channel; an open reservoir releasably disposed in the first compartment; a bait passageway in an upper portion of the reservoir and communicating with both the channel and the reservoir; an entrance sensor disposed proximate the channel; a pivotal trigger disposed above the second compartment and including a projection; and an air canister releasably disposed in the second compartment and including a plunger engaged with the projection, a nozzle, and a line having two ends connected to the nozzle and the bossed hole respectively. After the entrance sensor is activated, the projection presses the plunger to open the nozzle, thereby communicating the nozzle with the air canister.

Abstract: An electric scooter includes a board having a seat assembly extending from a top surface thereof and a motor connected to the board and drives a rear wheel connected to an underside of the board. A connection member with a head tube is connected to a front end of the board and a handlebar post rotatably extends through the head tube. A front wheel and a handlebar are connected to two ends of the handlebar post. An acceleration device is rotatably connected to a first end of the handlebar and two switches are connected to two ends of the handlebar such that the motor is activated only when two switch are operated by two hands of the rider.