Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...
Patent
1990-09-28
1992-06-30
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Control means energized in response to activator stimulated...
Responsive to work material, the product or means engaging...
493 28, 493210, 493245, 493249, 493264, B31B 2162, B31B 2198
Patent
active
051258854
ABSTRACT:
A bonded unitized envelope stack, manufacturing apparatus, and manufacturing method are provided in which envelopes in a stack are inter-connected by application of two spots of adhesive on the front panel of each envelope to engage the lower panel of the next above envelope. In one embodiment of the present invention, a conventional folding machine including a seal folder flap trap is modified to enable the application of the two spots of adhesive on the front panel of each envelope, and to produce bonded envelope stacks having a given fixed quantity of envelopes. When an envelope enters the seal folder flap trap, a photocell detects and triggers one counter of a dual counter system. A first counter increments each time an envelope enters the trap, until a count termed "preset 1" is reached. When "preset 1" is reached by the first counter, the glue applicator is deactivated. A second counter is then incremented. When a second present count termed "preset 2" is reached by the second counter, the second counter is reset and the apparatus is deactivated. When an envelope enters the seal folder flap trap, the envelope stops and reverses direction, and two spots of adhesive from two glue applicator heads are applied to the front of the envelope near the bottom fold through two slots cut through the seal flap trap plate.
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Brochure of Precision Adhesive Placement, South El Monte, Ca., for VanSco Micro-Track System with VACOS Software, dated Oct. 1986.
Brochure of F. L. Smithe Machine Company, Inc., Duncansville, Pa., for RA 800 Series Envelope Machines (copyrighted 1984).
Hightower A. Derrell
Wooley Robert E.
National Service Industries, Inc.
Terrell William E.
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