Mandrel assembly

Details Mandrel assembly Mandrel assembly

1993-05-03

1998-10-20

Watson, Robert C.

Work holders

Holder inserted within work aperture

Expandable mandrel

B23Q 300

Patent

active

058235205

ABSTRACT:
A grommet or the like comprised of elastomeric material and having a passage formed therein is placed onto a mandrel which serves to resiliently expand the cross-sectional area of the passage; the mandrel while holding the passage to the expanded cross-sectional area places the grommet or the like in an area of cold temperature to effectively freeze the grommet or the like and thereby stabilize the expanded cross-sectional area by, through such freezing, eliminating the resilient characteristics of the elastomeric material; the stabilized grommet or the like, removed from the mandrel, is then easily slid onto a related cooperating carrier wherein the outer configuration and size of the carrier is less than that of the stabilized expanded cross-sectional area.

REFERENCES:
patent: 2241609 (1941-05-01), McClelland et al.
patent: 2321518 (1943-06-01), Rossmann
patent: 5042787 (1991-08-01), Duffavd
patent: 5224690 (1993-07-01), Vaught
patent: 5256342 (1993-10-01), McMillan et al.
patent: 5265456 (1993-11-01), Kennedy et al.

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