Mesa forming weld depth limitation feature for use with energy d

Details Mesa forming weld depth limitation feature for use with energy d Mesa forming weld depth limitation feature for use with energy d

1999-02-05

2000-05-23

Crispino, Richard

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

403270, 1565801, 1565802, B32B 3120, B32B 3116

Patent

active

060662166

ABSTRACT:
An energy director structure with an auxiliary weld depth limitation feature is provided. The energy director is located on a first contact shelf. A second contact shelf that is shorter, broader, forming a mesa is positioned laterally adjacent to, and below, the first contact shelf. The second contact shelf forms a mesa that limits the depth of the ultrasonic welding. Limiting the time, pressure, or temperature of the welding process additionally ensures the weld depth is limited to the height of the second contact shelf or mesa. Two plastic pieces, one of which includes an energy director and mesa structure, may be welded together to form a capillary having precise volumetric accuracy.

REFERENCES:
patent: 5360499 (1994-11-01), Savovic
patent: 5401342 (1995-03-01), Vincent et al.
patent: 5520775 (1996-05-01), Fischl et al.
patent: 5540808 (1996-07-01), Vincent et al.
patent: 5782575 (1998-07-01), Vincent et al.

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