Fastener
US4285379A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Sep 17, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener for securing parts to metal framing such as channel framing having side flanges with inwardly turned, hook-shaped lips defining a slot therebetween. The fastener comprises an elongate body or nut having inside and outside faces, opposite sides and opposite ends, a width less than that of the slot and a length greater than the width of the slot. The fastener also includes a clamp member carried on the outside face of the nut for engaging the curved outside faces of the channel lips, a retainer on the inside face of the nut and engageable therewith, and guide members extending from the clamp member to a position beyond the inside face of the nut and the retainer. At least one of the guide members has a portion bent to provide a spring finger engageable with the retainer for providing spring action tending to draw the clamp member in the direction back toward the outside face of the nut thereby to clamp the clamp member and nut against respective outside and inside faces of the channel lips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.