Method of forming workpieces by means of multi-sectional pressing members
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United States of America Patent
Stats
-
Mar 22, 1994
Grant Date -
N/A
app pub date -
Sep 24, 1992
filing date -
Oct 9, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A forming assembly comprises two presser members (22,24) each having a corrugated surface for receiving a workpiece made up of generally diamond-shaped pockets (10). Each presser member is made up of sections (22a,22b; 24a, 24b) mounted on slide rods (38) for movement between a spaced-apart position, in which a workpiece can be located therebetween, and a closed position, movement into which, while the workpiece is held between the presser members, is effective to compress the workpiece laterally. For holding the pockets in their diamond shape formers (20) are inserted therein. A flange (18) is formed at one end of the workpiece and integral therewith by pressing outwardly folded material against a lateral end face of the presser members (22,24) using a presser plate (52). This forming method is especially suitable for forming self-supporting filter units.
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Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- B32B Class
- 2.45 % this patent is cited more than
- 31 Age