# US 10,306,971 B2 · Convertible bullet-proof backpack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,306,971 B2 - Document ID: US10306971B2 - Status: Granted - Kind: B2 - Application number: 15/731,045 - Filed: 2017-04-12 - Published: 2018-10-18 - Granted: 2019-06-04 - Earliest claimed: 2017-04-12 - Applicants: Wei Zhang - Inventors: Wei Zhang - Web page: https://patentgrep.com/patent/US10306971B2 ## CPC - A45F 4/02: Sacks or packs convertible into other articles {or into objects for other use} - A45C 3/001: {Flexible materials therefor} - A45C 7/0068: {with slide fastener strips} - A45C 13/103: {Arrangement of zip-fasteners} - A45C 15/00: Purses, bags, luggage or other receptacles covered by groups A45C1/00 - A45C11/00, combined with other {objects or} articles (A45C1/08, A45C3/14, {A45C11/321, A45C13/28} take precedence) - A45F 3/04: Sacks or packs carried on the body by means of two straps passing over the two shoulders - A45F 3/06: specially adapted for military purposes - F41H 1/02: Armoured or projectile- or missile-resistant garments; Composite protection fabrics {(F41H5/04 takes precedence)} - F41H 5/08: for personal use {, i.e. hand held shields} - F41H 1/00: Personal protection gear (shields for personal use F41H5/08; {footwear for use in minefields A43B3/0026}; for protection against chemical warfare A62B) - F41H 5/00: Armour; Armour plates (processes for manufacturing or treating B21, C21, {heat treatment C21D9/42; wall or panel structure for safes E05G1/024}) - A45F: TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY - A45C: PURSES; LUGGAGE; HAND CARRIED BAGS - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL ## Abstract A convertible bullet-proof backpack and vest includes a body section divided into a front portion, a middle portion, and back portion. The middle portion has a head slot opening, and the front and back portions have respective sections of bullet-proof fabric integrated therein. A zipper runs around an outer perimeter of the front and back portions. In a backpack configuration, the zipper secures the outer perimeters of the front portion and the back portion together thereby forming a hollow backpack interior between them. In a bullet-proof vest configuration, the zipper is unzipped thereby allowing a user to insert their head through the head slot opening such that the front portion hangs in front of a torso of the user and the back portion hangs behind the torso of the user. ## Claims ### Claim 1 A convertible bullet-proof backpack comprising: a backpack configuration and a bullet-proof vest configuration; a body section of the bullet-proof backpack including a front portion, a middle portion, and a back portion; the front portion of the body section located on a first side of the middle portion, the front portion having a first section of bullet-proof fabric integrated therein; the back portion of the body section located on a second side of the middle portion, the second side being on an opposite side of the middle portion than the first side, the back portion having a second section of bullet-proof fabric integrated therein; the middle portion of the body section extending between the front portion and the back portion, the middle portion having a slot opening provided therein configured to receive a user's head in the bullet-proof vest configuration and a detachable top portion of the middle portion for allowing the user to close the slot opening in the backpack configuration; the body section further comprising a first zipper chain and a second zipper chain of a zipper configured to close the backpack in the backpack configuration, the first zipper chain provided in a first U-shape around an outer perimeter of the front portion, the second zipper chain provided in a second U-shape around an outer perimeter of the back portion, a zipper slider on at least one of the first zipper chain and the second zipper chain: wherein, in the backpack configuration, the front portion and the back portion are moved towards each other and connected at the middle portion so that the first zipper chain and the second zipper chain are attached to one another thereby securing the outer perimeters of the front portion and the back portion together closing sides and a bottom portion of the backpack and thereby forming a hollow backpack interior between the front portion and the back portion; and in the bullet-proof vest configuration, the first zipper chain and the second zipper chain are detached from one another thereby allowing the user to adaptively insert their head through the slot opening of the middle portion and adaptively extend their arms between the first and second zipper chains such that the front portion is configured to hang in front of a torso of the user and the back portion is configured to hang behind the torso of the user. ### Claim 2 (depends on 1) The convertible bullet-proof backpack of claim 1, wherein the back portion further includes one or more carrying straps on an exterior-facing side. ### Claim 3 (depends on 1) The convertible bullet-proof backpack of claim 1, further comprising a plurality of adjustable waist straps for securing the front portion and the back portion to each other adaptively around the torso of the user in the bullet-proof vest configuration. ### Claim 4 (depends on 3) The convertible bullet-proof backpack of claim 3, wherein the plurality of adjustable waist straps are connected to interior-facing sides of the front portion and the back portion such that the plurality of adjustable waist straps are enclosed within the hollow backpack interior in the backpack configuration. ### Claim 5 (depends on 3) The convertible bullet-proof backpack of claim 3, wherein the plurality of adjustable waist straps include adjustment buckles. ### Claim 6 (depends on 1) The convertible bullet-proof backpack of claim 1, further comprising an additional storage compartment accessible from an exterior-facing side of the front portion. ### Claim 7 (depends on 1) The convertible bullet-proof backpack of claim 1, further comprising a cloth cover on interior-facing sides of the front portion and the back portion. ### Claim 8 (depends on 1) The convertible bullet-proof backpack of claim 1, wherein the detachable top portion is attached within the slot opening by a top zipper on the middle portion. ### Claim 9 (depends on 8) The convertible bullet-proof backpack of claim 8, wherein the top zipper of the middle portion includes first and second chains that respectively extend around a first part of a perimeter of the slot opening and the detachable top portion, wherein a second part of the perimeter of the slot opening and the detachable top portion are joined such that the detachable top portion is configured to extend backwards on the back portion of the body section when the top zipper is unzipped. ### Claim 10 (depends on 8) A method of converting the convertible bullet-proof backpack of claim 8 from the backpack configuration to the bullet-proof vest configuration, the method comprising: pulling the zipper slider to detach the front portion from the back portion; opening the top zipper of the middle portion to open the slot opening; inserting a head of the user through the slot opening such that the front portion hangs in front of the torso of the user and the back portion hangs behind the torso of the user; and tightening one or more adjustable waist straps. ### Claim 11 A convertible bullet-proof vest comprising: a backpack configuration and a bullet-proof vest configuration; a body section of the bullet-proof vest including a front portion, a middle portion, and a back portion; the front portion of the body section located on a first side of the middle portion, the front portion having a first section of bullet-proof fabric integrated therein; the back portion of the body section located on a second side of the middle portion, the second side being on an opposite side of the middle portion than the first side, the back portion having a second section of bullet-proof fabric integrated therein; the middle portion of the body section extending between the front portion and the back portion, the middle portion having a slot opening provided therein configured to receive a user's head in the bullet-proof vest configuration and a detachable top portion of the middle portion for allowing the user to close the slot opening in the backpack configuration; the body section further comprising a first zipper chain and a second zipper chain of a zipper configured to close the backpack in the backpack configuration, the first zipper chain provided in a first U-shape around an outer perimeter of the front portion, the second zipper chain provided in a second U-shape around an outer perimeter of the back portion, a zipper slider on at least one of the first zipper chain and the second zipper chain: wherein, in the backpack configuration, the front portion and the back portion are moved towards each other and connected at the middle portion so that the first zipper chain and the second zipper chain are attached to one another thereby securing the outer perimeters of the front portion and the back portion together closing sides and a bottom portion of the backpack and thereby forming a hollow backpack interior between the front portion and the back portion; and in the bullet-proof vest configuration, the first zipper chain and the second zipper chain are detached from one another thereby allowing the user to adaptively insert their head through the slot opening of the middle portion and adaptively extend their arms between the first and second zipper chains such that the front portion is configured to hang in front of a torso of the user and the back portion is configured to hang behind the torso of the user. ### Claim 12 (depends on 11) The convertible bullet-proof vest of claim 11, wherein the back portion further includes one or more carrying straps on an exterior-facing side. ### Claim 13 (depends on 11) The convertible bullet-proof vest of claim 11, further comprising a plurality of adjustable waist straps for securing the front portion and the back portion to each other adaptively around the torso of the user in the bullet-proof vest configuration. ### Claim 14 (depends on 13) The convertible bullet-proof vest of claim 13, wherein the plurality of adjustable waist straps are connected to interior-facing sides of the front portion and the back portion such that the plurality of adjustable waist straps are enclosed within the hollow backpack interior in the backpack configuration. ### Claim 15 (depends on 13) The convertible bullet-proof vest of claim 13, wherein the plurality of adjustable waist straps include adjustment buckles. ### Claim 16 (depends on 11) The convertible bullet-proof vest of claim 11, further comprising a cloth cover on interior-facing sides of the front portion and the back portion. ### Claim 17 (depends on 11) The convertible bullet-proof vest of claim 11, wherein the detachable top portion is attached within the slot opening by a top zipper on the middle portion. ### Claim 18 (depends on 17) A method of converting the convertible bullet-proof vest of claim 17 from the backpack configuration to the bullet-proof vest configuration, the method comprising: pulling the zipper slider to detach the front portion from the back portion; opening the top zipper of the middle portion to open the slot opening; inserting a head of the user through the slot opening such that the front portion hangs in front of the torso of the user and the back portion hangs behind the torso of the user; and tightening one or more adjustable waist straps.