Pneumatic seesaw apparatus
AssigneeMarvin Glass & Associates
InventorDavid A. Glickson
Life of this patent
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Abstract
An elongated unitary inflatable vessel of thin, flexible sheet material includes a pair of relatively large volume, generally circular-shaped, hollow seats at opposite ends interconnected by an integrally formed central conduit of relatively smaller transverse cross-section. Each seat includes an upper seating surface for supporting a person in an elevated position above the floor and the person on one seat may force the seating surface downwardly toward the floor thereby moving air from the seat into the conduit to raise the elevation of the opposite seat and provide a seesaw action.
Claims10
Pneumatic seesaw apparatus, comprising:
- an elongated, hollow, unitary, air-tight, flexible vessel formed of two thin flexible sheets of material of substantially uniform thickness, said sheets joined along their edges and said vessel inflatable to contain a volume of gas under pressure and collapsible to flattened configuration when uninflated;
- said vessel including a pair of relatively large volume, generally circular-shaped, hollow seats, at opposite ends and interconnected by an integrally formed, centrally disposed hollow tubular conduit portion having an internal volume substantially less than said circular-shaped seats and a transverse dimension substantially less than the diameter of said seats at the end, said circular-shaped seats having a diameter greater than their transverse dimension;
- and
- each seat including an upper seating surface for supporting a person in an elevated position above a lower wall portion in contact with a floor or support, whereby a person on one seat may force said upper seating surface downwardly toward said floor to move air from said one seat into said conduit for elevating the upper seating surface of the opposite seat for raising another person sitting thereon.
Dependencies are inferred from the claim text.