Abstract: The meat packaging machine of the present invention is designed to vacuum pack meat products between two webs of heat sealable thermo-plastic material. One web of each package is formed with at least two pockets connected by and bounded by a sealing flange extending outwardly therefrom. The second web which closes the pockets also extends over the sealing flange and the entire interface between the two webs is heat sealed to prevent migration of meat juices. The machine includes a sealing head and a sealing die mounted one on either side of the sealing plane. Heated sealing members are located in the sealing head and in the sealing die which, when the head and die are in the closed position, are disposed to engage the first and second webs therebetween to effect a heat seal over the entire sealing interface of the webs.

Abstract: The meat packaging machine of the present invention is designed to vacuum pack meat products between two webs of heat sealable thermo-plastic material. One web of each package is formed with at least two pockets connected by and bounded by a sealing flange extending outwardly therefrom. The second web which closes the pockets also extends over the sealing flange and the entire interface between the two webs is heat sealed to prevent migration of meat juices. The machine includes a sealing head and a sealing die mounted one on either side of the sealing plane. Heated sealing members are located in the sealing head and in the sealing die which, when the head and die are in the closed position, are disposed to engage the first and second webs therebetween to effect a heat seal over the entire sealing interface of the webs.

Abstract: In a vacuum packaging machine there is provided the combination of a sealing unit and vacuum unit. The sealing unit comprises first and second sealing dies and the vacuum unit comprises a primary spacer located adjacent the input end of the sealing dies. The primary spacer is spaced from the first die to form a first web feeding passage therebetween and is spaced from the second die to form a second web feeding passage therebetween. The vacuum unit also includes a secondary spacer located adjacent the input end of the dies and mounted for movement between a retracted position permitting closure of the dies to effect sealing and an extended position maintaining at least a portion of the webs which passed through the first and second web feeding passages, in a spaced relationship to permit evacuation of the container space formed between the webs.