Captive fastener
US11060549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2019 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B41/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A captive fastener comprising a head, a neck, and a threaded shaft, and one or more spring loaded pins disposed within respective cavities of the shaft along at least first and second radial directions. Each spring loaded pin is located in a chamber of the shaft with an annular rim on at a proximal end of the pin that prevents the pin completely passing through an aperture and out the chamber. The distal end of the pin projects through the aperture and out of the shaft when the spring is not compressed. That is, the spring biases the pin outward such that a distal portion of the pin projects through the hole, but the spring can collapse to allow the fastener to pass through a fitted opening sized to receive the shaft of the fastener before the pin expands outward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.