초록 ▼

An improved flexible envelope for use as a mailing pouch or evidence preservation package. The envelope is constructed of a metalized polyester material which is characterized by an incision in a wall of said envelope which is sealed by a pressure sensitive adhesively sealed flap. After the flap is

An improved flexible envelope for use as a mailing pouch or evidence preservation package. The envelope is constructed of a metalized polyester material which is characterized by an incision in a wall of said envelope which is sealed by a pressure sensitive adhesively sealed flap. After the flap is folded over and sealed, the user may open the envelope without the assistance of a knife or scissors due to notches at either end of the line of incision which initiate and guide the tearing of the flap. Any attempt to remove or tear open the sealed flap produces tamper evident markings thereon.

대표청구항 ▼

An arrangement comprising: (a) an envelope having an open orientation and closed orientation and means for converting said envelope from said open orientation to said closed orientation; said envelope having front and rear walls of metallized polymer characterized by the absence of perforations ther

An arrangement comprising: (a) an envelope having an open orientation and closed orientation and means for converting said envelope from said open orientation to said closed orientation; said envelope having front and rear walls of metallized polymer characterized by the absence of perforations therein; said envelope open orientation having; (i) said front and rear walls sealed to one another along upper and lower ends and opposing side edges to define an envelope interior having first and second, opposite, side edge seals; (ii) a transverse incision in said front wall for providing access to said envelope interior, said transverse incision being below and generally parallel to said upper ends of said front and rear walls; and, said transverse incision extending between said front and rear wall side edge seals; (iii) a double wall thickness flap whereat said front and rear walls are sealed to one another; said flap being oriented between said incision and said front and rear wall upper ends; (iv) a coating of pressure sensitive adhesive on said flap; said coating being oriented on a portion of said flap comprising said front wall and oriented between said incision and said front wall upper end; (v) a flap fold along which, when said envelope is converted from said open orientation to said closed orientation, said flap is foldable over said front wall incision; said flap fold axis comprising a portion of said rear wall extending along, aligned with, and adjacent to said incision in said front wall; and, said flap fold axis extending between said first and second side edge seals; said front wall not being sealed to said rear wall along said flap fold axis and between said first and second side edge seals; (b) a tear notch in said first side edge seal aligned with said flap fold axis; and, (ii) a tear notch in said second side edge seal aligned with said flap fold axis.