Siphon pump
US4073305A · kind A · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | May 20, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2917
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An elongated tube is bent to have a central portion, a short leg and a long leg. The long leg is closed by a cap which is counterbalanced into the closed position. An elongated inner tube having an outer upper end passes through the sidewall of the long leg and terminates a substantial distance down in the long leg of the outer tube. The outer end of the inner tube is covered by a conventional bulb air pump. Squeezing the air pump pushes a pulse of air out the lower end and creates a vacuum when the cap is closed to begin siphoning through the short leg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.