Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – With treatment means other than assembling – bonding – shaping...
Patent
1996-06-03
1998-10-13
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
With treatment means other than assembling, bonding, shaping...
264249, 264259, 264275, 264295, 264296, 425517, 425520, 425394, 425397, B29C 5336
Patent
active
058208968
ABSTRACT:
An apparatus is provided for manufacturing a lampshade from a heat-deformable sheet material. The apparatus includes a first supporting assembly for supporting a hollow body formed from the heat-deformable sheet material, the hollow body having upper and lower peripheral edges. A second supporting assembly is provided for releasably supporting a forming and stiffening ring in peripheral engagement with an interior surface of the hollow body adjacent a peripheral edge of the hollow body so that a marginal edge portion of the hollow body projects beyond the forming and stiffening ring. The second supporting assembly is located adjacent the first supporting assembly and includes a retractable supporting assembly for engaging an underside and an upper side of the forming and stiffening ring. The apparatus further includes a device for heating the marginal edge portion and a device for engaging the marginal edge portion after such heating for folding or rolling the marginal edge portion around the forming and stiffening ring and for holding the formed edge portion in place until material has cooled.
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Diamond Andrew Carl
Elliott Nicholas Sten
Wheatley Jeremy David
Eashoo Mark
Silbaugh Jan H.
Welwyn Lighting Designs Limited
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