Method for making sealant
US4400338A · kind A · utility
22Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1982 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Feb 16, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The method of making a deformable sealant strip having a continuous strip of rigid corrugated material embedded longitudinally within mastic material wherein a continuous linear-rigid spacer is first corrugated and then fed in this condition into an extruder cross head wherein such rigid corrugated spacer is encompassed by a mastic. The strip is coiled for subsequent use in retrofitting double pane windows as well as making dual insulated windows. The extruder that receives the rigid corrugated spacer in its crosshead provides a mastic that surrounds and encompasses the spacer without deforming it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.