Heat sealing table assembly
First Claim
1. A table assembly for use with a heat sealing press of the type including a C-frame mounted for movement along a predetermined lengthwise path and including a base portion, a rear pillar portion, and an upper cantilever portion extending forwardly from the rear pillar portion;
- a lower platen mounted on the frame base portion;
a die mounted on the free forward end of the upper cantilever frame portion in vertically spaced overlying relation to the lower platen;
means for moving the die and platen vertically together; and
means for passing a sealing current from the die through lapped fabric positioned between the die and the platen to effect a longitudinal seal along the lapped fabric, said table assembly comprising;
(A) a fixed elongated forward table surface extending along and parallel to said lengthwise path;
(B) an elongated rearward table defining a rearward table surface extending along said lengthwise path parallel to and rearwardly of said forward table surface; and
(C) means supporting said rearward table at longitudinal locations spaced longitudinally from the respective opposite ends of said path so as to allow the press frame to move freely along said path without interference from said rearward table.
1 Assignment
0 Petitions
Accused Products
Abstract
A heating sealing apparatus including a heat sealing press and a table assembly. The press includes a C-frame mounted along a pair of rails and including a base portion, a rear pillar portion, an upper cantilever portion extending forwardly from the rear pillar portion, a lower platen mounted on the frame base portion, and a die mounted on the free foward end of the upper cantilever frame portion. The table assembly includes a rigid forward table extending along and parallel to the lengthwise path of movement of the press, and an elongated rearward table positioned in rearwardly spaced relation to the front table. A flexible elongated strip of dielectric material is positioned tautly between the forward edge of the rear table and the rear edge of the forward table and the lapped fabrics to be heat sealed are positioned over the complaint membrane during the sealing operation. The rear table is supported by a plurality of straps positioned beneath the table and secured at their opposite ends to tensioning devices including ratchet means for selectively tensioning each of the belts.
16 Citations
13 Claims
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1. A table assembly for use with a heat sealing press of the type including a C-frame mounted for movement along a predetermined lengthwise path and including a base portion, a rear pillar portion, and an upper cantilever portion extending forwardly from the rear pillar portion;
- a lower platen mounted on the frame base portion;
a die mounted on the free forward end of the upper cantilever frame portion in vertically spaced overlying relation to the lower platen;
means for moving the die and platen vertically together; and
means for passing a sealing current from the die through lapped fabric positioned between the die and the platen to effect a longitudinal seal along the lapped fabric, said table assembly comprising;(A) a fixed elongated forward table surface extending along and parallel to said lengthwise path; (B) an elongated rearward table defining a rearward table surface extending along said lengthwise path parallel to and rearwardly of said forward table surface; and (C) means supporting said rearward table at longitudinal locations spaced longitudinally from the respective opposite ends of said path so as to allow the press frame to move freely along said path without interference from said rearward table. - View Dependent Claims (2, 3, 4)
- a lower platen mounted on the frame base portion;
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5. A table assembly for use with a heat sealing press of the type including a C-frame mounted for movement along a predetermined lengthwise path and including a base portion, a rear pillar portion, and an upper cantilever portion extending forwardly from the rear pillar portion;
- a lower platen mounted on the frame base portion;
a die mounted on the free forward end of the upper cantilever frame portion in vertically spaced overlying relation to the lower platen;
means for moving the die and platen vertically together; and
means for passing a sealing current from the die through lapped fabric positioned between the die and the platen to effect a longitudinal seal along the lapped fabric, said table assembly comprising;(A) a compliant elongated dielectric membrane extending along and parallel to said path at a level passing between the die and platen so as to underlie the lapped fabrics; and (B) means supporting said membrane in a manner to allow the press frame to move freely along said path without interference from said membrane. - View Dependent Claims (6, 7, 8, 9)
- a lower platen mounted on the frame base portion;
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10. A heat sealing apparatus including:
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(A) a heat sealing press including; (1) a C-frame mounted for movement along a predetermined lengthwise path and including a base portion, a rear pillar portion and an upper cantilever portion extending forwardly from the rear pillar portion; (2) a lower platen mounted on the frame base portion; (3) a die mounted on the free forward end of the upper cantilever frame portion in vertically spaced overlying relation to the lower platen; (4) means for moving the die and platen vertically together; and (5) means for passing a sealing current from the die through lapped fabric position between the die and the platen to effect a longitudinal heat seal along the lapped fabric; and (B) a table assembly comprising; (1) a fixed elongated forward table surface extending along and parallel to said lengthwise path; (2) an elongated rearward table defining a rearward table surface extending along said lengthwise path parallel and rearwardly of said forward table surface; and (3) means supporting said rearward table at longitudinal locations spaced longitudinally from the respective opposite ends of said path so as to allow the press frame to move freely along said path without interference from said rearward table. - View Dependent Claims (11, 12, 13)
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Specification