Patent ID: 8302830

Claim:
A shoulder holster device, comprising: a cylindrical canister holder having an open top and a closed bottom adapted to insertingly receive a portable oxygen canister; an apron affixed to an upper rear outside surface of said canister holder to protect an underarm area of a wearer; a shoulder strap affixed to said apron adapted to fit over a shoulder of said wearer and having a “D”-ring affixed thereto; a chest strap connected to said shoulder strap adapted to fit around a chest of said wearer; a first adjustment point located on said shoulder strap for adjusting a size of said shoulder strap; and, a second adjustment point located on said shoulder strap for adjusting a location of attachment of said chest strap to said shoulder strap; wherein said chest strap further comprises: a front chest strap comprising a first front end adjustably connected to a rear chest strap at a third adjustment point and further comprising a second front end releasably connected to said shoulder strap; a rear chest strap comprising a first rear end adjustably connected to said shoulder strap at said second adjustment point and further comprising a second rear end adjustably connected to said front chest strap at said third adjustment point; and, a hook affixed to said second front end of said front chest strap; wherein said shoulder strap and said chest strap are adjustable to securely conform to a body of said wearer; wherein said second front end of said front chest strap is connected to said shoulder strap by said hook removably attaching to said “D”-ring; wherein said device further comprises a canister ring removably attached to said “D”-ring, said canister ring removably attachable to a stem portion of said oxygen canister for providing lateral stability when retained within said canister holder; and, wherein said device retains said oxygen canister to said body of said wearer.