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US 4,909,892 AGranted
Apparatus for welding thermoplastic frame members
AssigneeSampson Machine Company
InventorsRobert Quinn, Louis Sparacino, John Grandy, Paul Barbero
Life of this patent
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Abstract
An apparatus for simultaneously welding two or more pairs of thermoplastic frame elements is disclosed. The apparatus includes a clamp or jig assembly which maintains the frame elements in alignment with respect to each other and to a heating plate. A driving assembly is provided for moving the frame elements towards the heating plate and/or towards each other for heating and fusion.
Claims11
An apparatus for welding thermoplastic frame elements to each other, comprising:
- means for supporting a first pair of thermoplastic frame elements and a second pair of thermoplastic frame elements, each of said thermoplastic frame elements including end portions, said supporting means including means for mounting said pairs of thermoplastic frame elements at a selected angle with respect to each other;
- means for separating the thermoplastic frame elements constituting each pair by a selected vertical distance;
- means for urging said first pair of thermoplastic frame elements and said second pair of thermoplastic frame elements perpendicularly with respect to each other such that said respective end portions of said first pair of thermoplastic frame elements are moved towards said respective end portions of said second pair of thermoplastic frame elements, and
- means for welding said respective end portions of said first pair of thermoplastic frame elements to said respective end portions of said second pair of thermoplastic frame elements.
1 more element
Dependencies are inferred from the claim text.