Method and apparatus for making fiber-filled cushion
US5569425A · kind A · utility
10Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/558
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for quickly, and substantially uniformly, heating and cooling a bed of polymeric fibers having high melting point and low melting point fibers therein for softening the low melting point fibers and bonding them to the high melting point fibers to form a seat cushion. Hot and cool gases are flowed through the bed of fibers via a plurality of ventilator spikes extending into the fibers in the mold cavity to effect substantially uniform gas flow rates through the fibers for quick more uniform heating/cooling of the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.