Sheet metal fasteners with multiple spreadable shanks
US7390156B1 · kind B1 · utility
1Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Mar 2, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B15/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sheet metal fastener for securing a covering member to a cementitious-like base or insulating material wherein the fastener includes at least two hollow shanks that depend from a common head and wherein each shank includes opposing generally U-shaped spreadable legs for trapping plugs of the material there between and wherein side walls of the legs also flare laterally away from one another to grasp an additional plug of the material between adjacent shanks as the fastener is driven into the base or insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.