US 4,535,490 A · Inflatable hot tub with cover

Abstract

An inflatable hot tub is provided with one or more stacked endless loops of inflatable tubes and sidewalls and a floor or bottom wall. An insulating cover, preferably secured around its entire periphery with an elastic band to the topmost tube, is manually removable and provides insulation by preferably either rigid closed cell synthetic foam or one or more inflation chambers. The tubes may be connected together and to the bottom wall. Pressurized gas may be provided in air jet bubbles to the bottom of the tub through a motor driven pump and heater, with a supply hose extending over the top periphery of the tubes or through the bottommost tube and side wall if present. The air jets may lead from a rigid or flexible pipe or combinations thereof, extending around the lower periphery of the floor, which pipe may be circular in cross section or of quarter-round cross section having its right angle portion fitting in the corresponding right angled joint between the side and bottom walls of the tub. A floor drain may be provided with a conventional rotatable hose coupling.

Claims15

Dependent claims

An inflatable hot tub, comprising:

an endless inflatable tube composed of flexible sheet material and having inflation coupling means for introducing pressurized gas to its interior for inflating the same, said tube extending in a closed horizontal loop;
a liquid impervious sheet material bottom extending horizontally and generally coextensive with the interior area of said tube loop;
means joining said bottom around its entire periphery to said tube in a liquid impervious manner to form therewith an open top tub for containing liquid;
a sheet material cover generally coextensive with the open top area of said tub, and including means for securing said cover in a manually releasable manner around the entire top periphery of said tube and heat insulating means secured to said sheet cover within the open top area of said tub;
a rigid pipe extending around generally the entire periphery of the inside of said hot tub adjacent said bottom, and having a plurality of nozzle means spaced along its length for ejecting a stream of gas bubbles into said hot tub when pressurized;
and means supplying pressurized air to said tube.

3 more elements

Dependencies are inferred from the claim text.

Inflatable hot tub with cover

Life of this patent

Inflatable hot tub with cover

Life of this patent

Abstract

Claims15