They Invented What? (No. 47)

U.S. Pat. No. 6,872,145:  Solo-operable seesaw.

JW Note:  Per David McClaughry at HD&P, this invention “takes all the fun out of the teeter-totter.”  Enjoy.

 

What is claimed as new and what is desired to secure by Letters Patent of the United States is:

1. A seesaw movable between ground and elevated positions and comprising: a base member having oppositely spaced side sections and a back section integral therewith and spaced therebetween, said side sections having respective bottom edge portions for engaging a ground surface and further having respective top edge portions for defining an apex of said base member, said base member further including a plurality of elongated braces having opposed end portions connected thereto and for maintaining said side sections at substantially stable positions; an elongated plank having a first end portion engaged with said base member and being selectively pivotable thereabout, said plank further having an oppositely spaced second end portion defining a seat for receiving an operator thereon; and means for pivotally lifting said plank upwardly along a predetermined arcuate path after said second end portion of said plank is moved to select lowered positions, said lifting means being connected to said base member and said plank respectively.