When was Peter M. Roberts' quick-release ratchet mechanism patented in the United States?
Answer
1965
Roberts' invention, US Patent 3,208,318, was patented in the United States in 1965.
Related Questions
Who is credited with patenting the quick release mechanism specifically for bicycle wheels?What was Campagnolo's primary motivation for inventing the quick release skewer?What type of mechanism did Peter M. Roberts invent that was also termed 'quick release'?How does the Campagnolo quick release skewer secure the wheel?What mechanical action distinguishes Roberts' ratchet from Campagnolo's skewer?What can occur if the tension on a quick release skewer is too low?What is considered the true measure of the quick release skewer's effectiveness, rather than the lever's final position?What is the general trend in high-performance cycling regarding traditional quick release skewers?What are the two main advantages offered by thru-axles over traditional skewers?When was Peter M. Roberts' quick-release ratchet mechanism patented in the United States?What characteristic of a thru-axle allows it to provide superior rotational resistance?