US Patent No. 10,117,365

SHIELDED ENCLOSURE HAVING TORTUOUS PATH SEAL


Patent No. 10,117,365
Issue Date October 30, 2018
Title Shielded Enclosure Having Tortuous Path Seal
Inventorship Paul M. Elizondo, II, Escondido, CA (US)
Assignee MEPS Real-Time, Inc., Carlsbad, CA (US)

Claim of US Patent No. 10,117,365

1. A medical article storage container having an internal storage space, the storage container being shielded from leaking radio-frequency (“RF”) energy out of and into the storage space, the container formed with a plurality of interconnected walls, the container comprising:a first wall located at a side of the storage space, the first wall comprising a substrate formed of an electrically non-conductive material, the first wall having a joining edge configured to physically mate with another wall to form a joint seam between the two walls, the joining edge having a width, the first wall also comprising an electrically conductive component that is configured to be coextensive with the first wall substrate and extend to the joining edge of the first wall substrate at which location the electrically conductive component is exposed to electrically connect with an electrically conductive component of another wall at the joint seam, the first wall also comprising a portion of a channel extending outwardly at the joining edge, the channel portion being as wide as the joining edge and having a shape including a bend and configured to physically mate with a complementary portion of a channel of another wall that is joined with the first wall at the joint seam; and
a second wall located at a side of the storage space, the second wall comprising a substrate that is formed of an electrically non-conductive material, the second wall having a joining edge that is physically mated with the joining edge of the first wall to form a joint seam between the two walls, the joining edge having a width, the second wall also comprising an electrically conductive component that is configured to be coextensive with the second wall substrate and extend to the joining edge of the second wall substrate at which location the electrically conductive component is exposed, the electrically conductive component of the second wall being electrically connected to the electrically conductive component of the first wall at the joint seam, the second wall also comprising a portion of a channel extending outwardly at the joining edge of the second wall, the channel portion of the second wall being as wide as the joining edge of the second wall and having a complementary shape to the shape of the portion of the channel of the first wall including the bend, the second wall channel portion being physically mated with the channel portion of the first wall to form an electrical channel with a bend thereby providing a tortuous path seal at the joint seam to attenuate RF energy leaking out of and into the storage space;
wherein the first and second walls have selectable sizes relative to each other wherein the first wall is used in a first storage container of a first size and the second wall is used in a second storage container of a second size that is different from the first storage container, wherein the first and second storage containers are modular containers that are connected together at joint seams of the first walls of the first storage container being connected to the second walls of the second storage container, whereby the electrical connections of the first and second walls form a part of a Faraday cage around the storage space and the tortuous path seal provides further shielding from RF leakage.