Method and apparatus for making fiber-filled cushion

Details Method and apparatus for making fiber-filled cushion Method and apparatus for making fiber-filled cushion

1995-12-18

1996-10-29

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Projecting particles in a moving gas stream

264122, 425 801, 425414, 425416, 425420, B29C 3504

Patent

active

055694250

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.

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patent: 5111579 (1992-05-01), Andersen
patent: 5229052 (1993-07-01), Billiu
patent: 5366678 (1994-11-01), Nomizo et al.
patent: 5378296 (1995-01-01), Vesa
patent: 5482665 (1996-01-01), Gill

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