For 40 years, Wilbur Blank’s orange peeler was nothing more than an idea whose time never came, one of the countless inventions that tinkerers like Blank create but can’t market. Then one day it ...

A. Although a variety of kitchen gadgets are advertised as orange peelers, we find that a knife makes quick work out of peeling oranges in the test kitchen: Cut a flat slice from the top and bottom of ...