US 12,188,216 B2
Wastewater drain stopper system
William Ball, Colorado Springs, CO (US); and Eric Pilarczyk, Colorado Springs, CO (US)
Assigned to WCM Industries, Inc., Colorado Springs, CO (US)
Filed by WCM Industries, Inc., Colorado Springs, CO (US)
Filed on Sep. 13, 2023, as Appl. No. 18/466,317.
Application 16/280,158 is a division of application No. 15/171,642, filed on Jun. 2, 2016, granted, now 10,233,622, issued on Mar. 19, 2019.
Application 18/466,317 is a continuation of application No. 17/649,480, filed on Jan. 31, 2022, granted, now 11,781,303.
Application 17/649,480 is a continuation of application No. 17/104,785, filed on Nov. 25, 2020, granted, now 11,280,074, issued on Mar. 22, 2022.
Application 17/104,785 is a continuation of application No. 16/280,158, filed on Feb. 20, 2019, granted, now 10,870,975, issued on Dec. 22, 2020.
Claims priority of provisional application 62/171,656, filed on Jun. 5, 2015.
Prior Publication US 2024/0003127 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E03C 1/262 (2006.01); E03C 1/23 (2006.01)
CPC E03C 1/262 (2013.01) [E03C 1/2302 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wastewater drain system comprising:
a ball rod;
a body comprising a first end, an opposite second end, and an opening positioned between the first end and the second end, wherein at least a portion of the ball rod is receivable through the opening;
an insert configured to cover a sink flange, the insert positioned at the first end of the body; and
a stem slidingly disposed at least partially within a hub of the insert and comprising a proximal end and a distal end, wherein the proximal end comprises a stopper and the distal end is coupled to the portion of the ball rod received within the body, wherein the ball rod is configured to actuate the stem, and wherein actuating the stem causes the stopper to engage or disengage the insert.