Method of sealingly seating a metal insert in a thermoplastic component
US5266258A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Jul 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/24221
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method of installing an insert in a plastics body so as to provide a screw thread therein, the insert being of metal and formed with the screw thread, and in which the hole in the plastic which receives the insert is sealed, by providing the insert with an `O` ring located in an external peripheral groove and projecting therefrom, the size and shape of the insert and hole being related and selected so that in axial displacement of the insert into the preformed hole accompanied by softening of the plastic caused by the fastener being preheated or by vibrations applied to the plastic via the fastener as it is inserted, the `O` ring only comes into contact with unsoftened plastic and only comes into contact with plastic towards the end of the axial installation movement. This ensures a good seal between the `O` ring and the plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.