Sleeve for toilet flanges and drains
US7013927B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 18, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | May 18, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G15/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A protective sleeve system for use by plumbers during installation of riser pipes in buildings, surrounds a pipe and maintains a space around the pipe. A sleeve surrounds the pipe such that a space is defined between the pipe and the sleeve and a plurality of spacers disposed between the sleeve and the pipe, maintain the space between the pipe and the sleeve. The plurality of spacers are separate from the sleeve. An annular cover ring covers the annular space. In use, the protective sleeve system is installed prior to pouring the concrete floor. After pouring and setting of the concrete floor, the cover ring is removed, followed by the removal of the spacers. The sleeve is then cut to floor level and the pipe riser is cut down to a suitable level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.