Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Buckets usually have bigger calibers than waste bins, which results in dumping the waste out of the bin. Using the larger opening to sweep in the waste, then the smaller one behind it to dump. By this, you can collect and dump the waste easily.
Chang Gung University
Chung Ho City, Taiwan
Ni-Feng Liu,Tun-Wei Liang