Strapper

Details Strapper Strapper

1989-12-06

1991-07-09

Sipos, John

Package making

Partial cover application

Band or tube

53582, 100 29, 140932, B65B 1330

Patent

active

050294334

ABSTRACT:
Strapper with a mechanism that has a tensioning wheel and tensions a section or steel strap obtained from a supply role and wrapped around a package and with a mechanism that has a stationary lower jaw and an upper jaw that executes a punching motion, fastening together the overlapping ends of the strap with at least two pairs of angled cuts positioned along the strap. The upper jaw that executes the punching motion is mounted and operated such that, as it executes its intended punching motion, one of the pairs of angled cuts begins to be introduced before the other pair does. To introduce the pairs of angled cuts, the operating surface of the upper jaw, the surface, that is, that faces the lower jaw, executes an essentially roller motion over the operating surface of the lower jaw combined with a motion that approaches the upper jaw to the lower jaw, so that the motion that introduces the first pair of angled cuts to begin terminates before the next pair of cuts to begin.

REFERENCES:
patent: 2549626 (1951-04-01), Mosey
patent: 3241579 (1966-03-01), Partridge
patent: 3319666 (1967-05-01), Langford et al.
patent: 3442734 (1969-05-01), Ericsson
patent: 3621888 (1971-11-01), Ericsson
patent: 3728779 (1973-04-01), Behlen et al.
patent: 3804001 (1974-04-01), Longerich et al.
patent: 4159725 (1979-07-01), Bachmann et al.
patent: 4398572 (1983-08-01), Fromm
patent: 4627142 (1986-12-01), Hornak

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