C-shaped fastening clip with improved strength
US5294224A · kind A · utility
7Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1993 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Aug 16, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/041
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved fastening clip of the U- or C-shaped type has a thread engaging hole in the axially opposed clip wall with a novel hole form. The perimeter surface of the hole includes a cooperating conical rim and pair of strengthening corrugations that work together to lead the fastener tip into the hole, as well as to strengthen and stiffen the surface. The corrugations also provide thread engaging bight portions close to the plane of the axially opposed clip wall, providing added fastening security with a relatively short fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.