1974-04-08
1976-02-03
Coan, James F.
53382, 93 62, B31B 136, B31B 4904
Patent
active
039358003
ABSTRACT:
A flap separating mechanism and method for distending a flap from a body portion of an envelope.
An envelope moving through a mail handling system may require its flap to be moistened and sealed. As a prelude to the moistening procedure, the flap of the envelope must be separated from the body portion. The separating mechanism disclosed herein comprises a pivotable elongated bar. An incoming vertically oriented envelope engages a dog-leg bend in the bar causing it to pivot to a deflected position. A weighted lever arm urges the elongated bar to pivot back to its original position, which provides a force to be applied to the back of the envelope. This force "breaks-the-back" of the envelope, which in turn results in distending the flap from the body portion thereof.
REFERENCES:
patent: 2668053 (1954-02-01), Bach
patent: 2939261 (1960-06-01), Calhoun
patent: 3015926 (1962-01-01), Galambos
patent: 3143838 (1964-08-01), Pouliart
patent: 3395624 (1968-08-01), Seyl
patent: 3529756 (1970-09-01), Smith
Sette Paul R.
Storace Anthony
Coan James F.
Pitney-Bowes Inc.
Salzman Robert S.
Scribner Albert W.
Soltow, Jr. William D.
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