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US3793799A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of film sheet dispensing and wrapping

Assignee: WR Grace and Co Conn
•
Filing: 1973-02-26
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Granted: 1974-02-26
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Expires: 1993-02-26
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Abstract

Abstract This invention is a method and apparatus for dispensing film sheets which are used for wrapping hamburgers, sandwiches, or other products which must be hand wrapped quickly. The film sheets are stacked and stapled at at least one corner with cooperating slits cut in the film near the staple. The sheets can be easily and rapidly torn from the stack with the remaining film held firmly by the staple so that film fragments do not contaminate the product. A dispensing tray is provided which further secures the stack of film sheets. Products can be wrapped by placing them on the top sheet of film and lapping the corners over the product so the sheet is torn from the staple thereby wrapping the product as the sheets are dispensed.

Inventors

  • 👤 M Howe
  • 👤 E Dexter
  • 👤 E Thompson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:14
CPC Classifications
B; B65; B65B; B65B67/00; B65B67/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 165 words
A method of dispensing wrapping material and wrapping a product therein comprising the steps of: a. providing a stack of thermoplastic film sheets, said stack of sheets having securing means for said stack in opposed corners of said sheets with curved slits partially circumscribing each securing means, said slits being located on the side of said securing means away from said corners; b. placing the product to be wrapped on the top sheet of said stack; c. sliding the fingers of one hand across said staple and said slit and contacting the surface of said sheet whereby said sheet is severed from said securing means and bringing said severed end over said product; d. moving the other hand across the remaining securing means and slit and engaging said sheet thereby severing same from said securing means and bringing the thus severed end of said sheet over said product; and e. folding the free corners of said sheet over said product to complete the wrapping thereof.
Claim 2
Independent Claim 165 words
A method of dispensing wrapping material and wrapping a product therein comprising the steps of: a. providing a stack of thermoplastic film sheets, said stack of sheets having securing means for said stack in opposed corners of said sheets with curved slits partially circumscribing each securing means, said slits being located on the side of said securing means away from said corners; b. placing the product to be wrapped on the top sheet of said stack; c. sliding the fingers of one hand across said staple and said slit and contacting the surface of said sheet whereby said sheet is severed from said securing means and bringing said severed end over said product; d. moving the other hand across the remaining securing means and slit and engaging said sheet thereby severing same from said securing means and bringing the thus severed end of said sheet over said product; and e. folding the free corners of said sheet over said product to complete the wrapping thereof.

References Cited (Backward Citations)

US2840962A Cited
US2921424A Cited
US2954654A Cited
US2974458A Cited
US3292344A Cited
US3392503A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-25 1977-08-27 1978-02-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-25 1981-08-27 1982-02-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-25 1985-08-27 1986-02-26 $7700.00 Window Closed / Lapsed

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