Method for sealing and cutting pads and moving the sealed and cu

Details Method for sealing and cutting pads and moving the sealed and cu Method for sealing and cutting pads and moving the sealed and cu

1995-10-20

1998-04-07

Dixon, Merrick

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156239, 156267, 264163, 264294, 264299, 264319, 264345, B32B 3100

Patent

active

057359911

ABSTRACT:
Method for producing pads in which a laminated pad sheet is fed from a supply roll through a combined sealer/cutter. The laminated pad sheet is indexed into the sealer/cutter with a support sheet of a predetermined thickness. The sealer/cutter moves a perimeter pattern defining a sealing electrode into engagement with the laminated pad. Electrical energy is applied across the sealing electrode and a conductive, grounded plate forming a pad per/meter seal. A support plate upon which the perimeter forming electrode is mounted is moved further toward the pad when the power is turned off, causing a cutting edge surrounding the sealing electrode to pierce completely through the laminate pad and only partially through the support sheet. The pad sheet and support sheet are indexed to feed the next portion of the pad sheet into the sealer/cutter, simultaneously advancing the sealed and cut pad and support sheet to a take-off position where the severed pad, supported by the support sheet, is safely removed from the pad sheet and support sheet. The support sheet is wound about a take-up spool for reuse. When sealing and severing of pads form one pad sheet is completed, the support sheet is rewound upon the supply spool and is shifted slightly in a lateral direction to displace previously made cuts in the support sheet from the cutting blade preparatory to a new sealing/cutting operation.

REFERENCES:
patent: 3497410 (1965-02-01), Zagusta et al.
patent: 4717438 (1988-01-01), Benge et al.
patent: 4846922 (1989-07-01), Benge et al.
patent: 5184111 (1993-02-01), Pichl

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