Blind bolt and tool combination
US11421722B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2021 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | May 28, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A blind bolt and tool is used for fastening a bolt through a hole in a structure when only one side of the structure is accessible. A receiver is formed on the tip end of a bolt shaft opposite from a bolt head. Internal threads are formed within the receiver proximate an outward end, and a hex socket is formed in the inward end of the receiver. External threads and a guide are formed on a tip of the tool, and the external threads mate with the internal threads in the receiver to hold the bolt during installation. A hex key on one end of the tool engages the hex socket in the receiver so that the tool may impose a torque on the bolt when a nut is being tightened on the bolt. In another embodiment, a splined tip is formed on the end of the bolt. The tip is designed to shear off when a sufficient torque is applied. Also, a shim is configured to fit between structures held together by the blind bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.