US 12,404,664 B2
Shower drain assemblies
Eric Pilarczyk, Colorado Springs, CO (US); William T. Ball, Colorado Springs, CO (US); and Kevin Hogan, Colorado Springs, CO (US)
Assigned to WCM Industries, Inc., Colorado Springs, CO (US)
Filed by WCM Industries, Inc., Colorado Springs, CO (US)
Filed on Oct. 30, 2023, as Appl. No. 18/497,583.
Claims priority of provisional application 63/587,279, filed on Oct. 2, 2023.
Prior Publication US 2025/0109579 A1, Apr. 3, 2025
Int. Cl. E03C 1/22 (2006.01); E03F 5/04 (2006.01)
CPC E03C 1/22 (2013.01) [E03F 5/0408 (2013.01); E03F 5/0409 (2013.01); E03C 2201/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A shower drain assembly, comprising:
a shower drain comprising:
an upper opening;
a lower opening;
a ledge having an upper surface and being substantially concentric with the upper opening and the lower opening of the shower drain;
and
inside threading;
a retaining ring comprising a plurality of angled teeth, and
wherein the retaining ring is configured to rest on the upper surface of the ledge of the shower drain; and
a sealing ring assembly, the sealing ring assembly comprising:
a test membrane;
outside threading configured to couple to the inside threading of the shower drain;
a plurality of grooves substantially concentric with the upper opening and the lower opening of the shower drain, each configured to receive an O-ring;
an inside cylindrical surface;
an outside cylindrical surface; and
an opening through the sealing ring assembly extending radially from the inside cylindrical surface to the outside cylindrical surface,
wherein a lower surface of the sealing ring assembly is configured to contact the retaining ring when the sealing ring assembly is threadingly mated to the shower drain.