Pneumatic actuating device for a toilet flush valve
US4304015A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1980 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Jul 3, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D5/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pneumatic actuating device for a toilet flush valve, comprising a cap emplaced on the flush valve housing and having an integral hemispherical bell member extending laterally therefrom, the bell member containing a resilient membrane. A manual pusher provided with a similar hemispherical membrane is connected to the bell member by a hose. A pipe which carries the flush valve plate is connected to a hood having a piston which extends into the membrane in the bell member. Upon actuation of the manual pusher, air flows through the hose, deforming the membrane in the bell member and causing it to lift the piston, thereby opening the flush valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.