# US 11,441,878 B2 · Reactive firearm training target providing visible feedback > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,441,878 B2 - Document ID: US11441878B2 - Status: Granted - Kind: B2 - Application number: 16/441,125 - Filed: 2019-06-14 - Published: 2019-12-19 - Granted: 2022-09-13 - Earliest claimed: 2018-06-16 - Applicants: Nathan Boring - Inventors: Nathan Boring - Web page: https://patentgrep.com/patent/US11441878B2 ## CPC - F41J 5/24: Targets producing a particular effect when hit, e.g. detonation of pyrotechnic charge, bell ring, photograph - F41J 1/01: Target discs characterised by their material, structure or surface, {e.g. clay pigeon targets characterised by their material}(F41J5/044 takes precedence) - F41J 7/04: disappearing {or moving} when hit {(exploding targets F41J5/26; exploding clay-pigeon targets F41J9/165)} - F41J: TARGETS; TARGET RANGES; BULLET CATCHERS {(targets for shooting or hurling games A63F9/0204)} ## Abstract A hit-indicating target comprising; a layer of polymer material, having a first side and a second side; and a first coating of thermally activated pigment applied to the first side of the layer of polymer material, wherein the first coating has an activation temperature. ## Claims ### Claim 1 A method to fabricate a hit-indicating target, the method comprising: amalgamating, an elastomeric polymer media and a first visual feedback pigment to form a target, wherein the target has an elastic modulus of a predetermined value and the first visual feedback pigment is substantially homogeneously distributed throughout the elastomeric polymer media and is colored; wherein the first visual feedback pigment has a first activation trigger energy value, when the first activation trigger is activated, a visual indication greater than a point of contact is visible based on the energy value generated by an object at the point of contact, and wherein the first visual feedback pigment appears colorless after the activation of the first feedback pigment and the elastomeric polymer media becomes translucent. ### Claim 2 (depends on 1) The method to fabricate a hit-indicating target of claim 1, further comprising applying a UV protective coating to the self-healing polymer media. ### Claim 3 (depends on 1) The method to fabricate a hit-indicating target of claim 1, wherein the first activation trigger energy value is a predetermined temperature value. ### Claim 4 (depends on 1) The method to fabricate a hit-indicating target of claim 1, wherein the first activation trigger energy value is a predetermined pressure value. ### Claim 5 (depends on 1) The method to fabricate a hit-indicating target of claim 1, further comprising combining a second visual feedback pigment in the elastomeric polymer media, wherein the second visual feedback pigment has a second activation trigger energy value. ### Claim 6 (depends on 5) The method to fabricate a hit-indicating target of claim 5, wherein if the activation trigger energy value of the object at the point of contact is greater than the first visual feedback pigment and the second visual feedback pigment, a transition from a first color to a second color, and then to a third color occurs. ### Claim 7 (depends on 5) The method to fabricate a hit-indicating target of claim 5, wherein the first visual feedback pigment has a first activation temperature and the second visual feedback pigment has a second activation temperature, wherein the second activation temperature is greater than the first activation temperature. ### Claim 8 (depends on 5) The method to fabricate a hit-indicating target of claim 5, where the second visual feedback pigment is a color which when activated with the first visual feedback pigment color, a third color is revealed. ### Claim 9 (depends on 1) The method to fabricate a hit-indicating target of claim 1, wherein a visual feedback pigment is applied to a surface of the elastomeric polymer media. ### Claim 10 (depends on 1) The method to fabricate a hit-indicating target of claim 1, wherein the first visual feedback pigment is reversible. ### Claim 11 A method to fabricate a hit-indicating target, the method comprising: forming, a self-healing polymer media, wherein the self-healing polymer media is in a predetermined shape, and has an elastic modulus of a predetermined value; and mixing, a visual feedback pigment within the self-healing polymer media, wherein the visual feedback pigment is homogeneously mixed through the self-healing polymer media and changing from a first color to a second color about a point of contact based on a cumulative amount of energy which is transferred from at least one object contacting the target, wherein the second color is translucent. ### Claim 12 (depends on 11) The method to fabricate a hit-indicating target of claim 11, wherein the visual feedback pigment activation area is based on the amount of energy absorbed by the target relative to the point of impact, and remains activated for a predetermined time frame. ### Claim 13 A method of fabricating a visual indication target, the method comprising: mixing a translucent self-healing polymer media with thermochromic pigment wherein the thermochromic pigment is homogeneously distributed throughout the translucent self-healing polymer media and the translucent self-healing polymer media and thermochromic pigment mixture is opaque, and wherein the thermochromic pigment is activated about a point of contact based on energy transferred from an object to the thermochromic pigment through the translucent self-healing polymer media, the thermochromic pigment becomes colorless and the translucent self-healing polymer media becomes translucent.