Levelling device for the placing of pieces for covering floors and similar
US8181420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2010 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Mar 19, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/0092
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The device has a first lower substantially flat body, which has in its upper part a flexible post with a narrowed or weakened portion and a second upper body with the passage for receiving and securing said post. The flexible post, which has a rectangular cross section, has in its main surfaces respective mutually opposed toothings, which teeth are offset in the lengthwise direction and the passage of the second body has two latching pawls mutually opposed, so that in the operative position of the devices, the teeth of the flexible post engage in an alternate form with said latching pawls. The second body has a bell like hollow form with a lower widened contact mouth or border.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.