Bio-degradable acousto-magnetic label and method of making same
An AM label and method for making the AM label, where the AM label may include a first housing portion comprising a first bio-degradable material and having a side wall defining a cavity. The AM label may include a second housing portion comprising a second bio-degradable material and connected to the first housing portion. The AM label may include an acousto-magnetic resonator sized to moveably fit within the cavity.
1 . An acousto-magnetic (AM) label, comprising:
a first housing portion comprising a first bio-degradable material and having a side wall defining a cavity;
a second housing portion comprising a second bio-degradable material and connected to the first housing portion; and
an acousto-magnetic resonator sized to moveably fit within the cavity,
wherein the cavity has a draft angle in a range of 0.5 degrees to 2.5 degrees.
2 . The AM label of claim 1 , wherein one or both of the first bio-degradable material and the second bio-degradable material comprises a non-white paper.
3 . The AM label of claim 1 , wherein one or both of the first bio-degradable material and the second bio-degradable material comprises cellulose fibers.
4 . The AM label of claim 1 , wherein one or both of the first bio-degradable material and the second bio-degradable material has a thickness of 15 to 45 points, wherein each point is 1/1000th of an inch.
5 . The AM label of claim 1 , wherein the second housing portion is flat paper.
6 . The AM label of claim 1 , wherein the cavity has a depth of 1.0 to 1.2 mm, and the first housing portion and the second housing portion include a width of 12.420 mm and a length of 46.43 mm.
7 . The AM label of claim 1 , wherein the second housing portion is sealingly mated to a flange of the first housing portion thereby forming the cavity as a sealed cavity between the first housing portion and the second housing portion.
8 . The AM label of claim 1 , further comprising a bias magnet attached to the first housing portion or the second housing portion, outside of the cavity.
9 . The AM label of claim 1 , further comprising an adhesive layer between the first housing portion and the second housing portion.
10 . The AM label of claim 1 , wherein the side wall extends non-linearly in a defined pattern.
11 . The AM label of claim 1 , wherein the first bio-degradable material is a same material as the second bio-degradable material.
12 . The AM label of claim 1 , wherein one or both of the first bio-degradable material and the second bio-degradable material comprises a non-white paper having a thickness of 20 to 40 points wherein each point is 1/1000th of an inch, and further comprising an adhesive layer between the second housing portion and a flange of the first housing portion.
13 . A method of producing an acousto-magnetic (AM) label, comprising:
forming a first housing portion comprising a first bio-degradable material and having a side wall defining a cavity;
forming a second housing portion comprising a second bio-degradable material and connected to the first housing portion; and
placing an acousto-magnetic resonator within the cavity, wherein the acousto-magnetic resonator is sized to be moveably within the cavity,
wherein the cavity has a draft angle in a range of 0.5 degrees to 2.5 degrees.
14 . The method of claim 13 , wherein one or both of the first bio-degradable material and the second bio-degradable material comprises a non-white paper.
15 . The method of claim 13 , wherein one or both of the first bio-degradable material and the second bio-degradable material comprises a non-white paper having a thickness of 15 to 45 points, wherein each point is 1/1000th of an inch.
16 . The method of claim 13 , wherein forming the first housing portion includes placing a first sheet of the first bio-degradable material between a first die and a second die and pressing together the first die and the second die to form a sidewall defining the cavity in the first housing portion.
17 . The method of claim 16 , wherein the first die or the second die comprise rounded edges having a radius between 0.2 mm and 0.9 mm.
18 . The method of claim 13 , wherein forming the second housing portion comprises applying an adhesive layer to a second sheet of the second bio-degradable material.
19 . The method of claim 13 , further comprising sealingly connecting the second housing portion to a flange of the first housing portion to further define the cavity as a sealed cavity between the first housing portion and the second housing portion.
20 . The method of claim 13 , further comprising affixing a bias magnet to the first housing portion or the second housing portion, outside of the cavity.
21 . The method of claim 13 , wherein the first bio-degradable material is a same material as the second bio-degradable material.