Vacuum Packaging and Sealing Appliance with Double Seal

摘要

An appliance for vacuum packaging and sealing a container, including: a vacuum motor assembly generating suction, a vacuum trough fluidly connected to the vacuum motor assembly, first and second heat sealing elements, and a microprocessor configured to control the vacuum motor assembly and the first and second heating elements in programmable sequences. One programmable sequence may include energizing the vacuum motor assembly to provide suction to the vacuum trough, energizing the first heat sealing element at a first predetermined temperature for a first predetermined time when a first predetermined vacuum level is reached in the vacuum trough, de-energizing the vacuum motor assembly after a third predetermined time has elapsed after the first heat sealing element has been de-energized, delaying a dwell time, and energizing the second heat sealing element at the expiration of the dwell time at a second predetermined temperature for a second predetermined time.

主权项

1. An appliance for vacuum packaging and sealing a container, the container having at least one unsealed side, comprising:
a vacuum motor assembly generating suction; a vacuum trough fluidly connected to the vacuum motor assembly; a first heat sealing element disposed adjacent to the vacuum trough configured to heat seal the unsealed side of the container; a second heat sealing element disposed between the first heat sealing element and the vacuum trough, said second heating element configured to heat seal the unsealed side of the container; and a microprocessor configured to control the vacuum motor assembly and the first and second heating elements in programmable sequences, at least one of the programmable sequences including:
energizing the vacuum motor assembly to provide suction to the vacuum trough;measuring pressure in the vacuum trough with a pressure transducer;energizing the first heat sealing element at a first predetermined temperature for a first predetermined time when a first predetermined vacuum level is reached in the vacuum trough as measured by the pressure transducer;de-energizing the vacuum motor assembly after a third predetermined time has elapsed after the first heat sealing element has been de-energized; andenergizing the second heat sealing element at a second predetermined temperature for a second predetermined time.