US 12,421,709 B2
Insulation disc for septic tank lid
Bernard C. Miller, Kimball, MN (US)
Filed by Bernard C. Miller, Kimball, MN (US)
Filed on Jul. 1, 2024, as Appl. No. 18/760,344.
Application 18/760,344 is a continuation of application No. 17/091,719, filed on Nov. 6, 2020, granted, now 12,024,873.
Claims priority of provisional application 62/933,094, filed on Nov. 8, 2019.
Prior Publication US 2024/0352722 A1, Oct. 24, 2024
Int. Cl. E03F 5/10 (2006.01); B65D 88/42 (2006.01); B65D 90/06 (2006.01); B65D 90/10 (2006.01); E02D 29/14 (2006.01)
CPC E03F 5/105 (2013.01) [B65D 88/42 (2013.01); B65D 90/06 (2013.01); B65D 90/10 (2013.01); E02D 29/14 (2013.01); E02D 29/149 (2013.01); B65D 90/105 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of insulating a septic tank, the method comprising:
providing an insulating disc for the septic tank, the insulating disc comprising:
a top layer;
a bottom layer;
an insulating layer disposed between the top and bottom layers;
a flexible gasket fastened to the top layer and extending circumferentially outward beyond the insulating layer; and
wherein each of the top, bottom and insulating layers are circular in top plan view, and wherein each of the top, bottom and insulating layers are secured together;
centering the insulating disc atop a top opening defined by an inner surface of a riser of the septic tank;
pushing downward on the insulating disc to move the disc vertically downward through the inner surface of the riser until the disc is seated adjacent to a hole in a lid of the septic tank; and
flexing the gasket upward as the insulating disc is pushed downward so that the insulating disc seals against the inner surface of the riser along an entire perimeter of the insulating disc.