Patent ID: 6119590
Filing Date: 2000-09-19
Classification: B29C,B29L,B31B,Y10T

Abstract:
A heat sealing apparatus for plastic materials comprising;a T-shaped heating element having an upper planar surface and a flange perpendicular to the planar portion forming a heating edge;a tubular rod heater in intimate contact with said upper planar surface of said T-shaped heating element;clamps means firmly clamping said tubular rod heater on top of said T-shaped heating element;said tubular rod heater positioned on said T-shaped heating element to maximize heat transfer to said heating edge;a housing covering said T-shaped heating element and said tubular rod heater;a handle on said housing for pressing said heating apparatus downward against a surface;a pair of rails mounted on either side of said heating edge forming a slot through which said heating edge may pass;biasing means biasing said rail over and beyond the end of said heating edge to maintain said heating edge in a retracted position until ready to use; said biasing means comprising resilient elastic foam springs supporting said pair of rails;means connecting said tubular rod heater to electrical power to heat said heating element and heating edge;whereby when said heat sealing apparatus is pressed downward on a plastic material placed on a surface, said heating edge passes through said slot between said rails and heats and seals said plastic material.