Method and apparatus for producing vacuum packages for food

Claim 1

A METHOD OF PRODUCING VACUUM PACKAGES IN SUCCESSION FROM TWO SHEETS OF FILMS SUCCESSIVELY FED FROM SUPPLY ROLLS HAVING MATERIAL TO BE PACKAGED INTERPOSED THEREBETWEEN COMPRISING: FIRST MOVING A FIRST FRAME AGAINST A WORK TABLE IN A DIRECTION TRANSVERSELY OF THE PLANE OF THE WORK TABLE AND PRESSING IT AGAINST SAID TABLE SO AS TO SANDWICH THE FILMS LENGTHWISE WITH THE PORTIONS OF THE FILMS CONTAINING THE MATERIAL THEREBETWEEN BEING CLOSED WITHIN SAID FIRST FRAME AND SAID WORK TABLE, SAID FIRST FRAME BEING YIELDABLY CONNECTED TO A SECOND FRAME WITH A SPRING MEANS BEING INTERPOSED THEREBETWEEN AND SAID FIRST FRAME BEING INDIRECTLY DIRVEN THROUGH SAID SPRING MEANS BY MOVEMENT OF SAID SECOND FRAME; EVACUATING THE SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE; MOVING SAID SECOND FRAME TRANSVERSELY OF THE PLANE OF THE TABLE AND PRESSING IT AGAINST SAID WORK TABLE WITH SAID PORTIONS OF FILMS BEING SANDWICHED AT THEIR RESPECTIVE PERIPHERAL EDGES BETWEEN SAID SECOND FRAME AND SAID WORK TABLE WHILE SAID FIRST FRAME IS MAINTAINED IN SAID PRESSING RELATIONSHIP AGAINST SAID WORK TABLE BY YIELDING ACTION OF SAID SPRING MEANS THEREBY KEEPING SAID SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE IN AN EVACUATED STATE; SEALING THE FILMS ALONG SAID PERIPHERAL EDGES WHILE THE MATERIAL TO BE PACKAGED IS CONTAINED THEREBETWEEN BY MEANS OF SEALING MEANS ATTACHED TO SAID SECOND FRAME WHILE SAID SECOND FRAME IS PRESSED AGAINST SAID WORK TABLE WITH THE FILMS SANDWICHED THEREBETWEEN; RELEASING SAID SECOND FRAME FROM SAID WORK TABLE BY DRAWING IT AWAY FROM THE TABLE TRANSVERSELY OF THE PLANE OF THE TABLE WHILE LEAVING SAID FIRST FRAME MAINTAINED IN PRESSING RELATIONSHIP AGAINST SAID WORK TABLE BY VIRTUE OF THE YIELDING ACTION OF SAID SPRING MEANS; ADMITTING AIR INTO THE SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE; RELEASING SAID FIRST FRAME FROM SAID WORK TABLE BY FURTHER MOVEMENT OF SAID SECOND FRAME AFTER THE YIELDING ACTION OF SAID SPRING MEANS IS TERMINATED; AND EJECTING THE SEALED PACKAGE FROM THE POSITION BETWEEN SAID FIRST FRAME AND SAID WORK TABLE BY FEEDING THE FILMS.

Claim 2

A METHOD OF PRODUCING VACUUM PACKAGES IN SUCCESSION FROM TWO SHEETS OF FILMS SUCCESSIVELY FED FROM SUPPLY ROLLS HAVING MATERIAL TO BE PACKAGED INTERPOSED THEREBETWEEN COMPRISING: FIRST MOVING A FIRST FRAME AGAINST A WORK TABLE IN A DIRECTION TRANSVERSELY OF THE PLANE OF THE WORK TABLE AND PRESSING IT AGAINST SAID TABLE SO AS TO SANDWICH THE FILMS LENGTHWISE WITH THE PORTIONS OF THE FILMS CONTAINING THE MATERIAL THEREBETWEEN BEING CLOSED WITHIN SAID FIRST FRAME AND SAID WORK TABLE, SAID FIRST FRAME BEING YIELDABLY CONNECTED TO A SECOND FRAME WITH A SPRING MEANS BEING INTERPOSED THEREBETWEEN AND SAID FIRST FRAME BEING INDIRECTLY DIRVEN THROUGH SAID SPRING MEANS BY MOVEMENT OF SAID SECOND FRAME; EVACUATING THE SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE; MOVING SAID SECOND FRAME TRANSVERSELY OF THE PLANE OF THE TABLE AND PRESSING IT AGAINST SAID WORK TABLE WITH SAID PORTIONS OF FILMS BEING SANDWICHED AT THEIR RESPECTIVE PERIPHERAL EDGES BETWEEN SAID SECOND FRAME AND SAID WORK TABLE WHILE SAID FIRST FRAME IS MAINTAINED IN SAID PRESSING RELATIONSHIP AGAINST SAID WORK TABLE BY YIELDING ACTION OF SAID SPRING MEANS THEREBY KEEPING SAID SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE IN AN EVACUATED STATE; SEALING THE FILMS ALONG SAID PERIPHERAL EDGES WHILE THE MATERIAL TO BE PACKAGED IS CONTAINED THEREBETWEEN BY MEANS OF SEALING MEANS ATTACHED TO SAID SECOND FRAME WHILE SAID SECOND FRAME IS PRESSED AGAINST SAID WORK TABLE WITH THE FILMS SANDWICHED THEREBETWEEN; RELEASING SAID SECOND FRAME FROM SAID WORK TABLE BY DRAWING IT AWAY FROM THE TABLE TRANSVERSELY OF THE PLANE OF THE TABLE WHILE LEAVING SAID FIRST FRAME MAINTAINED IN PRESSING RELATIONSHIP AGAINST SAID WORK TABLE BY VIRTUE OF THE YIELDING ACTION OF SAID SPRING MEANS; ADMITTING AIR INTO THE SPACE ENCLOSED BY SAID FIRST FRAME AND SAID WORK TABLE; RELEASING SAID FIRST FRAME FROM SAID WORK TABLE BY FURTHER MOVEMENT OF SAID SECOND FRAME AFTER THE YIELDING ACTION OF SAID SPRING MEANS IS TERMINATED; AND EJECTING THE SEALED PACKAGE FROM THE POSITION BETWEEN SAID FIRST FRAME AND SAID WORK TABLE BY FEEDING THE FILMS.