Apparatus and method for heat sealing a lidding sheet
OwnerPeter Houzego, David Nightingaleinventors
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Abstract
An apparatus and method for heat sealing a lidding sheet to a base, wherein the apparatus including a press for pressing a lidding sheet onto a sealing surface of a base, the press including a relatively flexible face plate and the apparatus further including a system for applying pressure to the lidding sheet with the face plate, the face plate flexing to conform to the lidding sheet and the underlying profile of the sealing surface of the base.
Claims26
An apparatus for heat sealing a lidding sheet to a base, the apparatus including:
- a press for pressing a lidding sheet onto a sealing surface of a base;
- wherein
- the press includes a relatively flexible face plate and the apparatus further includes a system for applying pressure to the lidding sheet with the face plate, the face plate flexing to conform to the lidding sheet and the underlying profile of the sealing surface of the base.
A method of heat sealing a lidding sheet to a base, the method including:
- positioning a lidding sheet against the sealing surface of a base;
- providing a relatively flexible face plate adjacent the lidding sheet;
- and
- applying pressure to the lidding sheet with the face plate such that the face plate flexes to conform to the lidding sheet and the underlying profile of the sealing surface of the base.
A method of heat sealing a lidding sheet to a base, the method including:
- positioning a lidding sheet against the sealing surface of a base;
- providing a face plate adjacent the lidding sheet;
- and
- applying pressure to the lidding sheet with the face plate whilst heating and cooling the lidding sheet so as to heat seal the lidding sheet to the base.
Dependencies are inferred from the claim text.