Coin-controlled fluid dispenser
US3934694A · kind A · utility
0Cited by
2References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 24, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Feb 24, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F13/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A coin-operated apparatus for dispensing a predetermined volume of a fluid to be purchased by insertion of a coin into a slot, includes a plunger for forcing the coin between two slides, one of which is moved by the coin to a fluid pumping position and the other of which is moved by a piston after the predetermined volume of fluid has been pumped, to a coin release position. Upon coin release, the fluid pumping is discontinued and the piston moves back to dispense the purchased fluid, whereupon the parts return to their initial position. The two slides move at right angles to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.