Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-06-26
1990-10-02
Wityshyn, Michael
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
441118, 441123, 1563084, 156581, 1565831, 1565832, B30B 502, B30B 1534, B32B 3120
Patent
active
049604830
ABSTRACT:
An apparatus is disclosed and method for using same wherein a life vest is formed by a single heat sealing operation which effectively forms a front and rear sealed chamber for flotation and effectively interconnects a neck member therebetween for providing a neck gusset also heat sealed in place simultaneously therewith. The apparatus includes a heat sealing body jig for simultaneously sealing of four layers of pneumatically impervious material with respect to one another to form two flotation chambers. Also a neck sealing jig is included as a two member configuration pivotally secured with respect to one another to allow a neck member to be stretched thereover to facilitate attachment thereof by sealing with respect to both flotation chambers. The neck jig includes attachment means for quickly securing the neck material in place.
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Switlik Parachute Company, Inc.
Wityshyn Michael
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