Chucks or sockets – Vacuum
Patent
1988-07-27
1989-07-11
Weidenfeld, Gil
Chucks or sockets
Vacuum
101 40, 118 50, 269 21, B23B 3100, B41F 1728
Patent
active
048464830
ABSTRACT:
In a mandrel system for receiving a cup-like product having a side wall with a ribbed interior surface, the exterior portion of the mandrel wall is adapted to firmly engage the interior surface of the product side wall in the regions between the ribs and to enhance interior backing of the product side wall in the regions between the ribs. In one embodiment, the exterior portion of the mandrel wall includes a compressible material. In another embodiment, the exterior surface of the mandrel wall includes channels for receiving the ribs on the interior surface of the product side wall. The mandrel wall is apertured to enable air to flow through the mandrel wall to draw the product into firm engagement with the mandrel when a vacuum is created inside the mandrel. The vacuum sucks air into the mandrel through the apertures as the product is being received by the mandrel; and the mandrel is rotated with respect to the product as the product is being received by the mandrel at least until the channels of the mandrel engage the ribs on the interior surface of the product side wall to engage the vacuum to draw the product into firm engagement with the mandrel.
REFERENCES:
patent: 3147017 (1964-09-01), Dunham
patent: 3236533 (1966-02-01), Mullion
patent: 3598043 (1971-08-01), Schuff
patent: 3661282 (1972-05-01), Buhayar et al.
patent: 4380964 (1983-04-01), Abe et al.
patent: 4722271 (1988-02-01), Fielrooy
Acebo Company
Callan Edward W.
Howell Daniel W.
Weidenfeld Gil
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