Differential pressure formed luggage with molded integrated frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 13, 1999
Issued Date -
N/A
app pub date -
Mar 14, 1997
filing date -
Jun 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to hard sided luggage shells and other containers manufactured using vacuum forming or pressure forming of thermoplastics. A process for making shells and containers with integrally molded frames is disclosed, and products made by the method. A method of manufacturing differential pressure formed containers with framed openings, but without the need to attach a separate frame element to the molded shell. A process also is disclosed for reducing the undesirable stretching of shell material that occurs during differential pressure forming, particularly the thinning of corner portions of the shell or container. The process of the invention more efficiently utilizes the thermoplastic material by moving material from otherwise offal portions into the molded product. An improved method for severing the offal material from the final product is disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully