Apparatus for supplying fluid of predetermined quantity
US4360127A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 17, 1980 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Oct 17, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K21/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for supplying fluid of predetermined quantity comprises a supplying passage for supplying fluid, an opening and closing valve provided within the supplying passage, mechanism for opening the opening and closing valve, locking mechanism for locking the opening and closing valve in an open state, negative pressure generating mechanism for generating negative pressure upon supply of the fluid outside through the supplying passage, lock releasing mechanism for releasing the lock of the locking mechanism by the introduction of the negative pressure generated by the negative pressure generating mechanism atmosphere introducing mechanism for introducing atmosphere into the lock releasing mechanism to neutralize the negative pressure, solenoid valve for interrupting the atmosphere introduction by the atmosphere introducing mechanism, measuring device for measuring the flow rate of the fluid supplied through the supplying passage, and control signal transmitting device for transmitting and supplying the control signal to the solenoid valve when the measured flow rate of the fluid reaches a predetermined flow srate. The solenoid valve interrupts the atmosphere introduction by th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.