US 12,031,662 B2
Insulated portable spa and processes for insulating
Oscar H. Otanez Trewartha, Tijuana (MX); Adrian Alfaro, Menifee, CA (US); and Erica Aloisia Moir, Santa Ana, CA (US)
Assigned to Sundance Spas, Inc., Chino, CA (US)
Filed by Sundance Spas, Inc., Chino Hills, CA (US)
Filed on Mar. 29, 2022, as Appl. No. 17/657,107.
Claims priority of provisional application 63/168,166, filed on Mar. 30, 2021.
Prior Publication US 2022/0316645 A1, Oct. 6, 2022
Int. Cl. F16L 59/04 (2006.01); A61H 33/00 (2006.01); F16L 59/02 (2006.01)
CPC F16L 59/04 (2013.01) [A61H 33/6005 (2013.01); F16L 59/02 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method of insulating a spa comprising:
installing a flexible bulkhead in a box frame to separate equipment from the box frame, the box frame having a top side and a bottom side separated by sidewalls;
mounting a barrier to one or more of the sidewalls of the box frame; and
accessing a cavity of the box frame through one or more openings in the barrier on the one or more sidewalls of the box frame;
blowing in insulative fiberglass through the one or more openings in the barrier and into a portion of the cavity between the flexible bulkhead and the one or more sidewalls of the box frame when the box frame is in an upright position.