Refuse collector drainpipe insert
US5546614A · kind A · utility
25Cited by
7References
1Claims
0Family size
Inventor
Key dates
| Filing date | Oct 25, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Oct 25, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/264
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A refuse-collecting drainpipe insert is a generally helical coil formed by a strip of rectangular cross section and having a bulge located axially generally centrally of the coil, and frustoconical end portions tapered oppositely from the central bulge of the coil, the strip at one end of the coil being formed as a hook and the strip at the other end of the coil being formed as a return bend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.