Mattress constructions
US4145779A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1978 |
| Grant date | Mar 27, 1979 |
| Priority date | — |
| Expiry date | Jan 13, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB68G7/051
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Mattress constructions and apparatus for producing the constructions wherein a resilient filler is located in a hopper and a flexible mattress cover is positioned for communication with the open end of the hopper. Means are provided for driving the filler into the cover, and the apparatus provides adhesive dispensers which apply adhesive to the filler surfaces so that this adhesive forms a bond between these surfaces and the associated cover. The apparatus employs engaging members for driving the filler out of the hopper, the engaging members automatically accommodate to differences in filler widths and thicknesses so that proper pushing engagement with the filler is reliably achieved. The resulting mattress is provided with a secure adhesive bond between the cover and filler, avoiding movement between the cover and filler during handling and use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.