Heat insulating jacket with snap-lock seam
US4850397A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Apr 21, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/406
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved heat insulating jacket slit lengthwise thereof held closed by a unique pair of dissimilar separable snap-lock seam members formed of extruded plastic and designed for heat-fused assembly to the inner plastic layer of flexible laminated sheeting having an outer layer nonfusible to said seam members. Each seam member includes a narrow groove sized to snugly seat and conceal the adjacent lateral edge of the sheeting. Each seam member includes internesting snap-lock members positioned to interlock when laminated sheeting fused thereto is wrapped about ducting. A blanket of resilient heat insulating material is laminated to the inner plastic layer of the sheeting and aids in holding the seam members interlocked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.