Prepayment fluid feeder
US4078645A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Nov 16, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a prepayment fluid feeder, a depressing member forces down a valve driving member through a coin located in a coin interposing space by an operation of a handle. When the driving member is depressed, a valve member is shifted to an open position, and a fluid such as tap water is supplied through a flow pipe. The driving member is locked by a locking mechanism in a position to which the member is depressed. A releasing mechanism acts on the locking mechanism and releases the locking of the driving member when the supply of a predetermined flow quantity is completed with a single coin, and the valve member is returned to the closed position, thereby stopping the supply of the fluid. The releasing mechanism comprises a setting wheel with notches formed on the outer periphery thereof and balls placed in the notches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.