Attachment for cement chute
US4688667A · kind A · utility
14Cited by
15References
12Claims
0Family size
Inventor
Key dates
| Filing date | Oct 24, 1985 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Oct 24, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/0481
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The chute attachment is attached to a chute on cement truck at a receiving end so that cement might flow through the receiving end to an outlet end having a reduced size compared to the receiving end and into the desired place. A closure assembly is provided to close the chute attachment to thereby cut off the flow of cement, and minimize or avoid any spillage. The chute attachment has a frame which includes a circular assembly having large, middle and small circular members. The members are secured together at a common tangential point and a cover is secured to the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.