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Apparatus for producing tetrahedron containers provided with an access aperture

  • US 3,287,878 A
  • Filed: 02/25/1963
  • Issued: 11/29/1966
  • Est. Priority Date: 02/25/1963
  • Status: Expired due to Term
First Claim
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8. APPARATUS TO PROVIDE A PLURALITY OF SHAPED CONTAINERS WITH SEALED OPENINGS THEREIN COMPRISING:

  • MEANS FOR SUPPLYING SHEET MATERIAL TO SAID APPARATUS, MEANS TO ADVANCE SAID SHEET MATERIAL, HOLE FORMING MEANS OPERABLY ASSOCIATED WITH SAID SHEET MATERIAL TO PERIODICALLY FORM A PLURALITY OF PAIRS OF HOLES IN SAID ADVANCING SHEET OF MATERIAL, EACH OF SAID PAIRS OF HOLES BEING SPACED FROM THE NEXT ADJACENT PAIRS OF HOLES, MEANS TO SIMULTANEOUSLY PLACE A STRIP OF HEAT SEALABLE MATERIAL OVER EACH HOLE OF SAID PAIR OF HOLES, MEANS TO HEAT SEAL A PORTION OF EACH OF SAID HEAT SEALABLE STRIPS TO SAID SHEET MATERIAL TO CLOSE EACH OF SAID HOLES AND TO LEAVE A PORTION OF SAID HEAT SEALABLE STRIPS UNSEALED TO PROVIDE A MEANS TO READILY PULL SAID HEAT SEALABLE STRIPS FROM SAID SHEET MATERIAL TO EXPOSE THE HOLE FORMED THEREIN, MEANS TO FORM SAID SHEET MATERIAL INTO A PLURALITY OF CONTAINERS AND MEANS TO SEVER SAID SHEET MATERIAL BETWEEN EACH OF SAID PAIRS OF HOLES AND BETWEEN THE HOLES IN EACH PAIR.

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