Quiet flush actuator for pressure-assist toilets

US11427995B2 · kind B2 · utility

Assignee

• Kohler Co. · US

Inventors

• William Kuru · Plymouth, US
• William Kalk · Sheboygan, US

Key dates

• Filing date: Oct 2, 2019
• Grant date: Aug 30, 2022
• Expiry date: Sep 16, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/52408
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A tank assembly for a pressure-assist toilet includes a flush assembly having an outer chamber and an inner chamber disposed in the outer chamber. The flush assembly further includes a flush valve disposed in the inner chamber, and a pilot valve disposed in the inner chamber and extending through the flush valve. The tank assembly further includes an actuator engaging the pilot valve and configured to hold the pilot valve at each of a first height, a second height offset a first distance from the first height, and a third height offset a second distance from the first height greater than a first distance.