Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With stretching or tensioning means
Patent
1972-12-14
1976-03-16
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With stretching or tensioning means
53198B, 100 33PB, 156498, 156499, 156502, B65B 1302
Patent
active
039444600
ABSTRACT:
A manually operable combination strapping tool for applying plastic strapping around an object includes a strap-tensioning and gripping mechanism for holding the strap in a tensioned loop around the object with the supply portion of the strap overlapping the leading end thereof, and a heat sealing mechanism which comprises a cam shaft adapted for camming engagement with a movable pressure block and with a rocker arm which is in turn releasably coupled to a movable heater. As the cam shaft is rotated, the rocker arm moves the heater between the overlapping strap portions and the pressure block is moved to press together the heating element and strap portions for melting thereof. Further rotation of the cam shaft disengages it from the pressure block and decouples the rocker arm from the heater to permit retraction of the pressure block and the heater by separate bias means. Further rotation of the cam shaft again effects cammed movement of the pressure block to bond together the melted strap portions and sever the supply portion of the strap. Means limiting the pressure with which the strap and the heater are pressed together and cooling means are also provided.
REFERENCES:
patent: 2982069 (1961-05-01), England
patent: 3360017 (1967-12-01), Vilcins
patent: 3368323 (1968-02-01), Wood
patent: 3397105 (1968-08-01), Takami
patent: 3438833 (1969-04-01), Nakano
patent: 3636861 (1972-01-01), Weller
Interlake, Inc.
Weston Caleb
LandOfFree
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