초록 ▼

An interlocking door seam provides a stronger seam for double doors, making them less subject to attack by prybars and the like. Particularly for central mail stations (CMS) and central box units (CBU), double doors present there are subject to attack by prybars and the like that force the locks and

An interlocking door seam provides a stronger seam for double doors, making them less subject to attack by prybars and the like. Particularly for central mail stations (CMS) and central box units (CBU), double doors present there are subject to attack by prybars and the like that force the locks and allow thieves to rifle the contents of the enclosed mail boxes. Attachment of interlocking door seam [of the present invention] to the first edge of the first double doors protects that first edge from prybar attacks. The adjoining edge of the second double door then releasably fits into a convex strip that protects the adjoining edge of the second double door, thereby protecting it from prybar attack. The interlocking door seam allows normal operation of the double doors while decreasing the risk to the central mail station of prybar attack at the seam between the double doors. Flanges present along the free edge of the convex strip provide easy engagement of that free edge. Gaps between such flanges accommodate shelving inside the central mail station. Construction of the interlocking door seam [of the present invention] by tempered steel or hard and durable materials provides enhanced protection from prybar attack.

대표청구항 ▼

[ What is claimed is:] [1.]1. A cluster box unit (CBU) for securing and protecting mail, comprising:a plurality of mailbox slots;a double door having a first outer door and a second inner door, said double door covering and protecting said plurality of mailbox slots, said first outer door overlappin

[ What is claimed is:] [1.]1. A cluster box unit (CBU) for securing and protecting mail, comprising:a plurality of mailbox slots;a double door having a first outer door and a second inner door, said double door covering and protecting said plurality of mailbox slots, said first outer door overlapping said second inner door;a plurality of mailbox slot doors, each one of said mailbox slot doors corresponding to an individual one of said plurality of mailbox slots, said mailbox slot doors imbedded in and a part of said double door;extending pins, said extending pins extending from said first and second doors;a sliding linkage, said sliding linkage sliding upon the CBU and receiving said pins, said sliding linkage holding said pins in place and holding said double door closed when said sliding linkage is in a first position, said sliding linkage releasing said pins and allowing said double door to open when said sliding linkage is in a second position; anda concave shroud attached to said first outer door, said concave shroud receiving a leading edge of said second inner door; wherebya seam present between said first and second doors better defends against being pried open as said second inner door is protected by said concave shroud to better secure and protect mail held in the CBU.