Abstract: An ultraviolet-and-ozone disinfection apparatus 200 providing an improvement on disinfection, includes a disinfection tank 202, a mercury UV lamp 210 enclosed by a quartz tube 208 for generating UV light with air trapped between them undergoing UV irradiation to generate ozone, an ozone transmitting tube 216, a spiral water transmitting tube 215 wrapping around the quartz tube in a spiral manner to achieve sufficient disinfection by mixing ozone in water, a sleeve barrel enclosing the spiral tube. Along the entire flow path, water is exposed to UV radiation to achieve sufficient disinfection and reduce excessive ozone that is harmful to human health.

Abstract: A wheel assembly includes a wheel rim, a hub radially spaced from the wheel rim, a plurality of spoke units interconnecting the hub and the wheel rim. Left and right spoke-covering members are mounted respectively on left and right ends of the hub and abutting against and cooperating with each other to confine a spoke-receiving space for receiving the spoke units Each of the spoke-covering members has a central portion extending radially from the hub, and a plurality of equi-angularly spaced apart blade portions extending radially from the central portion of each of the left and right spoke-covering members to the wheel rim. A fastener fastens the spoke-covering members to prevent removal of the same from the hub and the wheel rim.

Abstract: An ultraviolet-and-ozone disinfection apparatus 200 providing an improvement on disinfection, includes a disinfection tank 202, a mercury UV lamp 210 enclosed by a quartz tube 208 for generating UV light with air trapped between them undergoing UV irradiation to generate ozone, an ozone transmitting tube 216, a spiral water transmitting tube 215 wrapping around the quartz tube in a spiral manner to achieve sufficient disinfection by mixing ozone in water, a sleeve barrel enclosing the spiral tube. Along the entire flow path, water is exposed to UV radiation to achieve sufficient disinfection and reduce excessive ozone that is harmful to human health.

Abstract: A wheel assembly includes a wheel rim, a hub radially spaced from the wheel rim, a plurality of spoke units interconnecting the hub and the wheel rim. Left and right spoke-covering members are mounted respectively on left and right ends of the hub and abutting against and cooperating with each other to confine a spoke-receiving space for receiving the spoke units Each of the spoke-covering members has a central portion extending radially from the hub, and a plurality of equi-angularly spaced apart blade portions extending radially from the central portion of each of the left and right spoke-covering members to the wheel rim. A fastener fastens the spoke-covering members to prevent removal of the same from the hub and the wheel rim.

Abstract: A redundant power controller including two sets of switches, one of which is electrically controlled and the other is controlled manually. The electrically controlled switch is a relay-controlled switch which when detecting an abnormal input voltage, it sends out a positive voltage to cut off the power supply to the system. The mechanical switch is controlled manually to cut off the power supply to the system when needed.

Abstract: A hard diskdrive address adjusting device is provided which includes a plurality of rotary binary DIP switches respectively mounted on the hard diskdrives of an array hard diskdrive system. The rotary binary DIP switches adjust the address of each hard diskdrive. Each hard diskdrive of the array hard diskdrive system has a plurality of jumper terminals arranged in two rows, the jumper terminals of one row being connected in parallel with the contact C of the respective rotary binary DIP switch. The jumper terminals of the other row of each hard diskdrive being respectively connected to corresponding contacts of the respective rotary binary DIP switch.