| 摘要 |
PCT No. PCT/BR96/00004 Sec. 371 Date Jul. 17, 1997 Sec. 102(e) Date Jul. 17, 1997 PCT Filed Jan. 25, 1996 PCT Pub. No. WO96/22922 PCT Pub. Date Aug. 1, 1996A device for the closure and sealing of envelopes and the like. First and second elongated strips of plastic material are foldable upon each other along a narrow longitudinal hinge line. The first strip has a series of locking pins distributed along its length. Each of the locking pins has a weakened base. The second strip is provided with a series of sockets adapted for receiving respective locking pins in locking relation therein. To permit the device to be opened easily when it has been applied to a plastic envelope with the locking pins penetrating orifices formed along the two borders at the mouth of the envelope, at least a part along the length of the longitudinal hinge line is weakened starting from a first end, and each strip is provided, at its first end, with an appendage capable of being held between the fingers of the user. |
