PATENT 33582 of 1968Improvements In and Relating To Grass Catchers for Lawn MowersThis patent is interesting in that it harks back to Theo�s patent from 1959 �
for a rotary mower catcher that could be emptied quickly. That first catcher
became Rover Mower�s �Tip to Empty� catcher, used on their walk behind lawnmowers.
This patent added another feature � the catcher could be emptied without
changing the orientation of the mower itself. A patent clearly for ride-on
applications, but not necessarily limited to ride-ons.