Tamperproof sack system for home package deliveries

Abstract

A tamperproof sack system includes a tamperproof sack made of material that satisfies a predetermined cut-resistance standard, the tamperproof sack including a body and an adjustable opening portion formed in a top side of the body, the adjustable opening portion being configured to open and close; a door strap configured to secure the tamperproof sack to a door such that a rear side of the body is held against the door, the door strap being attached to the body and being configured to wrap around the door, the door strap including a door strap fastener configured to fasten the door strap to the door; and a lock including a keypad configured to receive user input, the lock configured to unlock the adjustable opening portion and thereby unlock the tamperproof sack based on whether the user input received at the keypad includes a valid access code.

What is claimed is: 
     
         1 . A tamperproof sack system to securely contain a package, the tamperproof sack system comprising:
 a tamperproof sack made of material that satisfies a predetermined cut-resistance standard, the tamperproof sack comprising:
 a body having a bottom side and a top side opposite, wherein the body defines an interior configured to house a package therein; and 
 an opening portion formed in the top side, the opening portion being configured to opened and closed; 
   wherein the predetermined cut-resistance standard is European Standard EN-2 or above.   
     
     
         2 . The tamperproof sack system according to  claim 1 , further comprising:
 a strap configured to affix the tamperproof sack to a fixed object; and   a lock.   
     
     
         3 . The tamperproof sack system according to  claim 2 , wherein the fixed object is a door. 
     
     
         4 . The tamperproof sack system according to  claim 2 , wherein the door strap is made of the same type of material as the body. 
     
     
         5 . The tamperproof sack system according to  claim 4 , wherein the strap is integrally formed with the body. 
     
     
         6 . The tamperproof sack system according to  claim 1 , wherein the body is made from a material selected from the group consisting of one or more of high performance polyethylene, ultra-high molecular weight polyethylene, para-aramid, polyvinyl acetate, polyvinyl acetate yarn, steel wire, metal fiber, and fiberglass yarn, or combinations thereof. 
     
     
         7 . The tamperproof sack system according to  claim 6 , wherein the body is made from ultra-high molecular weight polyethylene. 
     
     
         8 . The tamperproof sack system according to  claim 1 , wherein the body is made from a single unperforated piece of material. 
     
     
         9 . The tamperproof sack system according to  claim 8 , wherein the single unperforated piece of material is a single unperforated piece of ultra-high molecular weight polyethylene. 
     
     
         10 . The tamperproof sack system according to  claim 1 , further comprising:
 a drawstring affixed to the opening portion and configured to open and close the opening portion; and   a zip tie configured to keep the opening portion of the tamperproof bag closed.   
     
     
         11 . The tamperproof sack system according to  claim 1 , wherein the body does not comprise perforations or holes other than the opening portion. 
     
     
         12 . The tamperproof sack system according to  claim 1 , wherein the predetermined cut-resistance standard is European Standard EN-3 or above. 
     
     
         13 . The tamperproof sack system according to  claim 1 , wherein the predetermined cut-resistance standard is European Standard EN-4 or above. 
     
     
         14 . The tamperproof sack system according to  claim 1 , wherein the body is 0.1 to 6 feet long. 
     
     
         15 . The tamperproof sack system according to  claim 1 , wherein the body is 6 to 60 feet long. 
     
     
         16 . A method of preventing the unauthorized removal of items from the tamperproof sack system according to  claim 1 , the method comprising steps of:
 filling the tamperproof sack;   attaching the tamperproof sack to a fixed object; and   informing an authorized user of a method by which to open the tamperproof sack or detach the tamperproof sack from the fixed object.   
     
     
         17 . The method according to  claim 16 , further comprising a step of opening of the tamperproof sack by the authorized user. 
     
     
         18 . A method of delivering objects, the method comprising steps of, in order:
 a first authorized user accessing the tamperproof sack system according to  claim 1  and opening the tamperproof sack,   inserting an object into the tamperproof sack, and   closing the tamperproof sack.   
     
     
         19 . The method according to  claim 18 , further comprising, after the step of closing the tamperproof sack, a step of a second authorized user opening the tamperproof sack. 
     
     
         20 . The method according to  claim 18 , further comprising a step of securing the tamperproof sack to a fixed object either before or after the step of inserting the object into the tamperproof sack.