Apparatus for transferring flowable material to a receptacle and system incorporating the same
US5351864A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Dec 14, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/183
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to apparatus comprising a container, such as a silo or hopper for storing and distributing flowable material, to receptacle such as an I.B.C. via an outlet, there being a device adapted for removing and replacing a closure of the receptacle, particularly on passage of material into the receptacle. PA1 In a preferred arrangement, outlet of the silo is normally obturated by a conical (or frusto-conical) closure device which is raised and lowered by pneumatic devices in the form of an air bellows mounted in the silo on a frame. The bellows is within a cone, and there is also a device for oscillating the cone, such as a vibrator, in order to obviate bridging or rat-holing of material during discharge. The bellows is housed within a hygienic cover for cleanliness. The cone is connected with the bellows via a connector which may be in the form of a telescopic tube. The tube passes through the apex of the cone and is secured thereat as by a nut and bolt arrangement. The tube passes down interiorly of the cone and terminates in a suction cup such as a rubber cup, the cup itself being generally conical and its periphery being generally in a plane which also contains th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.