Title: Strapping joint and method and apparatus for forming same

Abstract: A joint having improved snag resistance and peel strength is formed between overlapping end portions of a thermoplastic strap. The thermoplastic strap is formed into a loop having overlapping inner and outer end portions which are joined to one another by a resolidified thin layer of formerly melted material from each of the overlapping strap end portions. Resolidified material extends completely to an inwardly tapered end of the outer strap end portion to provide the improved joint. A resolidified mass of formerly molten material also is present in front of the tapered end to further protect it against snagging.

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Inventors: Gould, Russell J. (Arlington Heights, IL, US)
Adams, Karl (Schaumburg, IL, US)

Application Number: 526893
Filing Date: 1974-11-25
Publication_date: 1976-12-07
Assignee: Signode Corporation (OH)
Primary Class(es): 428/198 53/375.9, 53/582, 100/6, 100/33PB, 428/60, 428/195.1, 428/197, 428/910, 442/409
Other Classes:
US Patent Ref:

2712343	Jul, 1955	Stanton	100/33.
3368323	Feb, 1968	Wood	156/499.
3394045	Jul, 1968	Gould	428/409.
3442732	May, 1969	Stensaker et al.	156/580.
3486964	Dec, 1969	Brunlid	428/57.
3718526	Feb, 1973	Anni, Jr.	156/580.
3858503	Jan, 1975	Takahashi	100/33.

Other Refs:
Primary Examiner: Lesmes, George F.
Assistant Examiner: Dixon, Jr., W. R.
Attorney: