US 12,414,671 B2
Loofah dish sponge and methods of manufacturing thereof
Alfonso Ramon Gorena Jean, Laredo, TX (US); Rodrigo Maldonado de Hoyos, Monterrey (MX); and Kendra Jean Sutherland, Hampton, GA (US)
Filed by Alfonso Ramon Gorena Jean, Laredo, TX (US); Rodrigo Maldonado de Hoyos, Monterrey (MX); and Kendra Jean Sutherland, Hampton, GA (US)
Filed on May 5, 2023, as Appl. No. 18/144,120.
Application 18/144,120 is a continuation in part of application No. 17/099,495, filed on Nov. 16, 2020, abandoned.
Prior Publication US 2024/0138650 A1, May 2, 2024
Int. Cl. A47L 17/08 (2006.01); B32B 3/04 (2006.01); B32B 7/09 (2019.01); B32B 9/02 (2006.01); B32B 9/04 (2006.01); B32B 37/18 (2006.01); B32B 38/00 (2006.01)
CPC A47L 17/08 (2013.01) [B32B 3/04 (2013.01); B32B 7/09 (2019.01); B32B 9/02 (2013.01); B32B 9/04 (2013.01); B32B 37/18 (2013.01); B32B 38/0004 (2013.01); B32B 2038/008 (2013.01); B32B 2250/03 (2013.01); B32B 2307/7376 (2023.05); B32B 2309/105 (2013.01); B32B 2317/10 (2013.01); B32B 2432/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of manufacturing a loofah dish sponge, comprising the following steps:
(a) bleaching a dried-out loofah fibrous skeleton in a water solution containing between 10 and 15 percent of bleach by volume for a duration between 30 min and 120 min, and while the loofah fibrous skeleton remains yellow in color, wherein the loofah fibrous skeleton has an external side, an internal side, and ridges on at least one side,
(b) cutting the loofah fibrous skeleton open to unfold thereof, followed by removing core veins and forming a flat outer fibrous skeleton,
(c) cutting out a first cover layer, an inner layer, and a second cover layer from the flat outer fibrous skeleton, wherein cutting of the layers is done between the ridges of the flat fibrous skeleton, wherein the first cover layer and the second cover layer are made in a generally rectangular or an oval shape with a width between 3 and 4 inches and a length between 4 and 6 inches, the first cover layer and the second cover layer having an internal side corresponding to the internal side of the loofah fibrous skeleton and an external side corresponding to the external side of the loofah fibrous skeleton, and wherein the size of the inner layer is ½ inch to ¾ inch smaller than the corresponding size of the first cover layer and the second cover layer,
(d) positioning the inner layer between the first cover layer and the second cover layer, wherein the external side of the first cover layer and the external side of the second cover layer are both facing away from the inner layer,
(e) deforming the first cover layer and the second cover layer to bring a first peripheral edge of the first cover layer next to a second peripheral edge of the second cover layer together, thereby creating a bulge in each of the first cover layer and the second cover layer and forming an internal volume for the inner layer between thereof, and
(f) sewing the first peripheral edge to the second peripheral edge without any fabric ribbon attached thereto, thereby producing the loofah dish sponge having a thickness between ¼ inch and ½ inch when dry,
wherein steps (d) through (f) are done when the first cover layer and the second cover layer are at least damp and more deformable than in a dry state thereof.