Apparatus and methods for tool(s) to work on building surface(s)
US8628318B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2010 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/1657
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention is directed to construction tools. The present invention includes tools used for applying mastic or mud to a work surface, for example, a corner finishing tool that may have a quick engage/disengage ball and socket feature that automatically stays open and automatically closes and locks. Various embodiments may include a universal and interchangeable working/running blade and cooperating frame design. The frame design may be partially held in place with a face or top plate. Various embodiments may include a multiple tension spring design with one or more adjustment arm(s) for varying the tension on the frame(s) and blade(s). Various embodiments may include flat internal walls to accommodate the one or more adjustment arm(s). Various embodiments may also include a input port cone with ball for attachment to, for example, an applicator box, that may be formed from multiple parts that may be made from different materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.