Coaster Patents Link

This is a rather cool page I found a bit ago:

http://www.personal.psu.edu/faculty/v/a/vac3/table.html

Its a list of all coaster related patents, theres some cool stuff on there, towards the bottom I found plans for a suspended woodie! also setpoint have one in there for splitting rails with side mounted seats on one side like in rct3
Stengel also has a patent for the tower which can rotate with the train stopped vertically on it too.
plus plenty of other interesting stuff only problem is I've never been able to get the pictures to work on ones from the last few years.
So yeah if u were wondering where that crazy rct3 stuff comes from. It'd be cool to see some of this stuff done instead of all those cookie cutters out there.