US 12,137,677 B1
Centrifugal pump pet water fountain
Kevin Michael Sayers, Knoxville, TN (US); Cody Lee Stricklin, Knoxville, TN (US); Anita Rechelle White, Knoxville, TN (US); Jonathan William Huber, Knoxville, TN (US); Marc Edward Brush, Knoxville, TN (US); Eric A. Ward, Knoxville, TN (US); and Grant Given, Knoxville, TN (US)
Assigned to Radio Systems Corporation, Knoxville, TN (US)
Filed by Radio Systems Corporation, Knoxville, TN (US)
Filed on Dec. 20, 2023, as Appl. No. 18/390,252.
Application 18/386,676 is a division of application No. 17/219,549, filed on Mar. 31, 2021, granted, now 11,825,822, issued on Nov. 28, 2023.
Application 18/390,252 is a continuation of application No. 18/386,676, filed on Nov. 3, 2023.
Application 17/219,549 is a continuation in part of application No. 16/561,607, filed on Sep. 5, 2019, granted, now 11,470,813, issued on Oct. 18, 2022.
Claims priority of provisional application 62/727,225, filed on Sep. 5, 2018.
This patent is subject to a terminal disclaimer.
Int. Cl. A01K 7/02 (2006.01); A01K 7/00 (2006.01); C02F 1/28 (2023.01); C02F 103/20 (2006.01)
CPC A01K 7/02 (2013.01) [C02F 1/283 (2013.01); C02F 2103/20 (2013.01); C02F 2301/04 (2013.01); C02F 2307/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A pet water fountain comprising:
a bowl for holding an aqueous drinking fluid;
a housing configured to cover a portion of the bowl, the housing defining a fluid reservoir that is disposed above the bowl;
a rotatable water lifting tube positioned within the housing, the water lifting tube comprising a bottom end having a fluid inlet to allow the passage of fluid from the bowl through the fluid inlet and into the interior of the water lifting tube and a top end in fluid communication with the fluid reservoir;
an electric motor for rotatably driving the rotatable water lifting tube;
a tube top portion disposed between the water lifting tube and the fluid reservoir; and
a cap positioned to overlay a top end of the tube top portion.