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Primary Examiner: Cannon, J.C.
Assistant Examiner:
Attorney: Stults; Harold L., Razzano; Pasquale A.

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Title: Engaged beveled sheet faces adapted to be sonically welded

Abstract: A joint construction formed by sonically welding the edges of sheets of oriented nylon. The coextensive edge portions of the nylon sheets are formed with generally complementary surfaces which are at an acute angle to the flat surfaces. A plurality of ridge portions extend from the complementary surfaces substantially parallel to the adjacent edges and concentrate sonic energy introduced into the joint at the interface of the complementary surfaces to form a weld joining the sheets, with the thickness of the completed joint being substantially the same thickness as an individual sheet.

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Inventors: Paine, Ellis Howard (Woodstock, CT, US)

Application Number: 503627
Filing Date: 1974-09-06
Publication_date: 1976-08-03
Assignee: Moldex, Inc. (Putnam, CT)
Primary Class(es): 428/60 156/73.4, 428/157, 428/198
Other Classes:
US Patent Ref:

2792318	May, 1967	Welch	161/149.
2914438	Nov, 1959	Sandt et al.	156/153.
3462803	Aug, 1969	Horton	156/73.
3471355	Oct, 1969	Truesdall et al.	161/119.
3660186	May, 1972	Sager et al.	156/73.
3666602	May, 1972	Obeda	156/73.
3684640	Aug, 1972	Hillers	161/123.

Other Refs: 954,970

Apr, 1964	UK

Other References: Obeda, Modern Plastics, 42 (3), 130-132, 137, 191 (1964).
Kolb, Machine Design, 39 (7), 180-185 (1967).