Viscous material pump, in particular for the conveyance of concrete
US4373875A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1980 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Aug 8, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A viscous material pump, in particular for the conveyance of concrete through a housing (3) of a switch tube (2) has a swivel body (26) fastened on an axially supported pivot shaft (44). The swivel body alternately connects a discharge opening (25) mounted in a housing wall with two inlet openings (6, 7) arranged in another housing wall. The centers of the inlet and outlet openings, respectively, are arranged in radial displacement from the shaft axis (35). The displacement of the inlet openings (6, 7) and the discharge opening (25) from the shaft axis (35) differs and is so selected that the displacement (R.sub.1) of the inlet openings (6, 7) is larger than the displacement (R.sub.2) of the discharge opening (25).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.