Patent ID: 11952174
Assignee: CONFORMER EXPANSION PRODUCTS, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  A | IPC B

Claim 19:
20. A flexible insert for a flat-sized flexible envelope, said insert comprising
a flat main section; and
at least three sleeves integral with and overlying said main section, at least one of said sleeves having a first section extending from said main section in perpendicular relation thereto, a second section extending from said first section in parallel to said main section, a third section extending from said second section in perpendicular relation to said main section and a fourth section extending from said third section and secured to said main section; and
at least one closure flap extending from said main section for folding across an end of a respective sleeve of said three sleeves, said closure flap having an end section for insertion into said respective sleeve to close said respective sleeve.