Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1982-04-27
1984-02-07
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
156 731, 156553, 264 23, 4251742, B29C 2708
Patent
active
044301480
ABSTRACT:
An improved ultrasonic bonding apparatus for pattern bonding juxtaposed laminae with a pattern of discrete bonds defined by a multiplicity of discrete pattern protuberances disposed on an anvil as the laminae are forwarded in the machine direction while fixedly associated with the discrete pattern protuberances. In such apparatus having the tip of an ultrasonic transducer biased towards its anvil surface, the discrete pattern protuberances are so configured and disposed on the anvil in its machine direction to obviate cobblestoning of the transducer with respect to the anvil as a patterned portion thereof is moved past the transducer tip; and/or the discrete pattern protuberances are so configured and disposed transverse the apparatus to precipitate wear--preferably even wear--of the tip of the ultrasonic transducer of the apparatus along the entirety of a line-of-contact portion thereof. The discrete pattern protuberances may be of various plan-view shapes including but not limited to geometrical or random shape areas, lines or closed linaments and/or combination thereof. The anvil is preferably a rotatably mounted and driven anvil cylinder.
REFERENCES:
patent: 3660186 (1972-05-01), Sager et al.
patent: 3666599 (1972-05-01), Obeda
patent: 3966519 (1976-06-01), Mitchell et al.
patent: 4311540 (1982-01-01), Hill
Braun Fredrick H.
Slone Thomas J.
The Procter & Gamble & Company
Witte Richard C.
Wityshyn Michael G.
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