Claims
- 1. In a tamper detectable envelope, the combination of a body portion formed from a front panel and rear panel with side flaps foldably connected to one of said panels and adhered to the other of said panels, a closure flap foldably connected along a score line to the top edge of one of said panels and adapted to be adhered to the other of said panels, said closure flap including:
- (a) opposed side edges and a straight free edge opposite said score line;
- (b) a plurality of spaced apart and parallel lines of slits applied to the closure flap which extend substantially from one side edge thereof to the other, and which criss cross one another at substantially right angles to produce a plurality of subpanels within the closure flap of generally diamond shaped configuration, each of said slits being separated from the next succeeding slit in its line and from the adjacent slits in the criss cross lines by normally unbroken connectors, said connectors comprising uncut segments of the closure flap located at least at each point of each diamond shaped subpanel, said parallel lines of slits extending from the general area of said score line to a point substantially near the free edge of said closure flap; and,
- (c) adhesive material applied between the closure flap and said other panel so that after the envelope is closed and sealed, any attempt to open the envelope by lifting the closure flap will sever one or more of the connectors between said slits and leave attached to said other panel one or more of the generally diamond shaped subpanels of said closure flap to provide visual evidence that the envelope has been tampered with.
- 2. A tamper detectable envelope comprising a body portion formed from a front panel and rear panel with side flaps foldably connected to one of said panels and adhered to the other of said panels, a closure flap foldably connected along a score line to an edge of one of said panels and adapted to be adhered to the other of said panels, said closure flap including:
- (a) opposed side edges and a straight free edge opposite said score line;
- (b) a first plurality of spaced apart and parallel lines of slits applied to the closure flap which extend at an acute angle with the free edge of said closure flap substantially from one side edge to the other, each of said slits being separated from one another by a normally unbroken connector, said first lines of slits extending from the general area of said score line to a point substantially near the free edge of said closure flap;
- (c) a second plurality of spaced apart and parallel lines of slits applied to the closure flap which extend at an obtuse angle with the free edge of said closure flap substantially from one side edge to the other, said second lines of slits extending from the general area of said score line to a point substantially near the free edge of said closure flap at regular intervals to cross said first lines of slits and produce generally diamond shaped subpanels within said closure flap, the slits in said second set of lines being separated from one another and from the slits in the first set of lines by normally unbroken connectors, said connectors being located at least at each point of each diamond shaped subpanel; and,
- (d) adhesive material applied between the closure flap and said other panel at least in the region of said subpanels so that after the envelope is closed and sealed, any attampt to open the envelope by lifting the closure flap will sever one or more of the connectors between said slits and leave attached to said other panel one or more of the generally diamond shaped subpanels of said closure flap to provide visual evidence that the envelope has been tampered with.
Parent Case Info
This is a continuation of application Ser. No. 536,347 filed Sept. 27, 1983, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (5)
Number |
Date |
Country |
62804 |
Jun 1913 |
ATX |
542257 |
Apr 1922 |
FRX |
18580 |
Jan 1891 |
GBX |
17804 |
Jan 1892 |
GBX |
12386 |
Jan 1894 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
536347 |
Sep 1983 |
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