Fastening device with nesting anchoring elements
US4752170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1986 |
| Grant date | Jun 21, 1988 |
| Priority date | — |
| Expiry date | Sep 4, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/124
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-function integrally molded plastic fastener for insertion within a hole in a wall for fastening objects to any of solid, thick or thin hollow walls. The fastener comprises a base element and an anchoring element with the base element being positioned within the hole and depending whether the wall is solid, thick or thin hollow wall, the anchoring element is positioned totally within, partially within and totally behind the wall respectively. The anchoring element is comprised of outstretched anchoring arms which are collapsible for insertion within the hole and which arms have interfitting sections of a sinusoidal wave configuration to minimize the cross section of the anchoring element and the width required for the hole. The ends of the arms, spaced from the base element, engage an external fastening member thereby providing a solid anchorage in any of a solid, thick or thin hollow wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.