Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toilet

US6370709B1 · kind B1 · utility

Assignee

• Evac International Oy · FI

Inventors

• Jay D. Stradinger · Roscoe, US
• William Bruce Anderson · Rockford, US
• Mark A. Pondelick · Rockton, US
• Douglas M. Wallace · Roscoe, US
• Michael B. Hancock · Rockford, US
• Arthur J. McGowan, Jr. · Thornton, US
• Ian Tinkler · Rockford, US

Key dates

• Filing date: Nov 16, 2000
• Grant date: Apr 16, 2002
• Expiry date: Nov 16, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87161
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A discharge valve is disclosed for use in a vacuum toilet system having a waste receptacle defining an outlet and a sewer line placeable under partial vacuum. The discharge valve comprises a housing defining an inlet and an outlet and a rotatable discharge valve member disposed in the housing for selectively establishing fluid communication between the inlet and the outlet. A periphery of the disk valve member being formed with a series of ear teeth. An actuator is provided having a rotatable spur gear adapted to engage the periphery of the discharge valve member.