Apparatus for sealing by surface fusion of mutually facing surfa

Details Apparatus for sealing by surface fusion of mutually facing surfa Apparatus for sealing by surface fusion of mutually facing surfa

1993-04-21

1994-11-01

Leung, Philip H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1565802, 1563796, 1562722, 219633, 228 11, B32B 3116

Patent

active

053604989

ABSTRACT:
An apparatus for ultrasonic sealing of thermoplastic materials includes a vibration generator of a so-called giant magnetostrictive powder composite (GMPC) which is anchored to a jaw at an anchorage point. The vibration generator is formed with a cross-sectional area which progressively reduces as seen from the anchorage point. A free end of the vibration generator has a narrow working surface. The vibration generator is surrounded by a coil for generating a magnetic field.

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