Browse Prior Art Database

Thermal Mass Seals

IP.com Disclosure Number: IPCOM000092054D
Original Publication Date: 1968-Aug-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Moro, RD: AUTHOR

Abstract

This welder heat-seals thermoplastic materials in a plurality of closely spaced locations to define a corresponding matrix of seals. The welder includes a plurality of sealing irons 1, corresponding to the number of seal points desired, each having a thermal mass containing only enough heat to perform the bonding. Initially the sealing irons are at rest as a unitized matrix 2 on a retractable heater 3 where they are heated until required for bonding. For bonding, the heater is retracted. The heated irons are then superimposed on sandwiched thermoplastic sheets 4 which are supported on platen 5.

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Thermal Mass Seals

This welder heat-seals thermoplastic materials in a plurality of closely spaced locations to define a corresponding matrix of seals. The welder includes a plurality of sealing irons 1, corresponding to the number of seal points desired, each having a thermal mass containing only enough heat to perform the bonding. Initially the sealing irons are at rest as a unitized matrix 2 on a retractable heater 3 where they are heated until required for bonding. For bonding, the heater is retracted. The heated irons are then superimposed on sandwiched thermoplastic sheets 4 which are supported on platen 5.

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