Food wrap sealer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4528802
SERIAL NO

06421726

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ATTORNEY / AGENT: (SPONSORED)

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Patent Longevity
    Expired
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Abstract

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A food sealing device for shrink-wrapping foods such as pizza includes a heat source surrounded by an inner shroud to create an updraft for heating the film. A second outer shroud is positioned around the inner shroud to prevent the film from contacting the hot inner shroud to prevent melting of the film against the inner shroud which might otherwise damage the film or the food item.

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Patent Owner(s)

Patent OwnerAddress
WISCO INDUSTRIES INC A CORP OF WISOREGON WI

International Classification(s)

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  • 1982 Application Filing Year
  • B65B Class
  • 397 Applications Filed
  • 2 Patents Issued To-Date
  • 0.51 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19821983198419850255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Salzmann, Ferdinand F Prairie du Sac, WI 16 543

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Patent Citation Ranking

  • 5 Citation Count
  • B65B Class
  • 0 % this patent is cited more than
  • 40 Age
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