BUTTER PATTY PRINTER AND PACKAGING APPARATUS

• US 3,768,228 A
• Filed: 10/27/1971
• Issued: 10/30/1973
• Est. Priority Date: 10/27/1971
• Status: Expired due to Term

• Current Assignee: Henry H. Doering Jr
• Original Assignee: Henry H. Doering Jr
• Inventors: Doering, Henry H. Jr.
• Primary Examiner(s): Spruill, Robert L.
• Application Number:
  US05/193,081
• Time in Patent Office: 734 Days
• Field of Search: 53/122,162,245,251,252,282,329
• US Class Current: 53/122
• CPC Class Codes: A01J 21/02 with extruding arrangements and cutting devices, with or without packing devices
• CPC Class Codes: B29C 65/18 using heated tools
• CPC Class Codes: B29C 65/30 Electrical means B29C65/38 takes precedence
• CPC Class Codes: B29C 65/305 involving the use of cartridge heaters
• CPC Class Codes: B29C 66/112 Single lapped joints
• CPC Class Codes: B29C 66/131 Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
• CPC Class Codes: B29C 66/53461 joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
• CPC Class Codes: B29C 66/91645 by steps
• CPC Class Codes: B29C 66/929 characterized by specific pressure, force, mechanical power or displacement values or ranges
• CPC Class Codes: B65B 9/042 for fluent material

Abstract

Method and apparatus for converting bulk butter and the like into individual service patties, for sealing each pat in a totally enclosed sanitary server, and for packing the individual services compactly in containers.

Claims

1. In patty printing apparatus, a patty printer, means for forcing material to be printed into said printer, means for ejecting patties from said printer, means for conveying trays to said printer in timed relationship for reception of the patties ejected from said printer, means for applying thermoplastic cover means to said trays, heated die means for heat sealing said cover means to said trays, a high pressure press carrying said die means, means for causing said press to engage said die means with said cover means and said trays a plurality of times, each time for a fraction of a second and each time at a pressure in the order of one ton per tray, cutting die means carried by said press posteriorly of said heated die means for severing the trays and cover means into individual services, means posteriorly of said cutting die means for relatively raising alternate ones of said individual services and for moving adjacent services into overlapping relationship with one another, means for moving packing cartons transversely of the overlapped trays, and means for pushing rows of overlapped trays into the cartons.

2. In the apparatus of claim 1, said printer having means for forming successive lateral rows of patties, said conveyor means carrying sheets of trays to said printer having a plurality of rows of trays for reception of respective rows of patties, said sheets of trays including portions defining marginal flanges on each tray, said cover applying means applying a unitary sheet over all of said trays, said heated die means and said cutting die means engaging said marginal flange portions of the tray containing sheets and the corresponding portions of said cover means, said means posteriorly of said cutting die means relatively raising alternate ones of said trays in each lateral row of trays and moving the trays laterally to overlap the flanges thereof.