Method for welding and adhesively attaching a shaped fastener to inside of member
US7880112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 3, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2037/007
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method is provided for attaching a fastener to the inside wall of a member. The fastener may be a bolt or a nut having a shank and a shaped head with head portions radiating from the shank. A hole is made in the member and has a shape closely corresponding to the shape of the head. The head of the fastener is inserted into the shaped hole and the fastener is reoriented so that the head engages with the inside walls of the member and therefore the fastener cannot be withdrawn. Electric current is applied to the fastener and the member to bond the head to the inside wall of the member either by heat curing an adhesive coating the head or by creating an electric resistance projection weld between the fastener head and the member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.