# US 9,433,252 B2 · Helmet accessory attachment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,252 B2 - Document ID: US9433252B2 - Status: Granted - Kind: B2 - Application number: 13/563,584 - Filed: 2012-07-31 - Published: 2014-02-06 - Granted: 2016-09-06 - Earliest claimed: 2012-07-31 - Assignees: Revision Military S.a.r.L. - Applicants: Stéphane Lebel; Dominic Giroux Bernier; Michael James McGinn - Inventors: Stéphane Lebel; Dominic Giroux Bernier; Michael James McGinn - Web page: https://patentgrep.com/patent/US9433252B2 ## CPC - A42B 3/04: Parts, details or accessories of helmets - A42B 3/221: {Attaching visors to helmet shells, e.g. on motorcycle helmets} - A42B 3/326: {Helmets with movable or separable chin or jaw guard} - A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00) ## Abstract A helmet accessory attachment system may include an attachment portion comprising a biasing element, a position member, and a movable member. The movable member may be selectively moveable between a home position which is a first distance from the position member and a release position which is a second distance from the position member. The biasing element may bias the movable member toward the home position. The helmet accessory attachment system also may include a mounting portion attachable to a helmet. The mounting portion may include a first channel to receive the movable member at a first opening and a second channel to receive the position member at a second opening. A third distance between the first opening of the first channel and the second opening of the second channel may be greater than the first distance from the movable member to the position member in the home position. ## Claims ### Claim 1 A helmet accessory attachment system comprising: an attachment portion comprising a biasing element, a position member, and a movable member, the movable member being selectively movable between a home position which is a first distance from the position member, and a release position which is a second distance from the position member, wherein the biasing element biases the movable member toward the home position and toward the position member, and wherein the attachment portion includes an elongate slot, and a portion of the movable member is slidable in the elongate slot; and a mounting portion attachable to a helmet, wherein the mounting portion comprises a first channel to receive the movable member at a first opening and a second channel to receive the position member at a second opening, wherein a third distance between the first opening of the first channel and the second opening of the second channel is greater than the first distance from the movable member to the position member in the home position. ### Claim 2 (depends on 1) The helmet accessory attachment system of claim 1, wherein the third distance between the first opening of the first channel and the second opening of the second channel is less than the second distance. ### Claim 3 (depends on 1) The helmet accessory attachment system of claim 1, wherein the movable member is a slide member. ### Claim 4 (depends on 1) The helmet accessory attachment system of claim 1 wherein the system comprises a plurality of attachment portions and corresponding mounting portions. ### Claim 5 (depends on 1) The helmet accessory attachment system of claim 1, wherein the movable member is linearly movable. ### Claim 6 (depends on 1) The helmet accessory attachment system of claim 1, wherein the attachment portion is configured to selectively retain at least one accessory. ### Claim 7 (depends on 3) The helmet accessory attachment system of claim 3, further comprising at least one accessory, wherein the at least one accessory includes at least one of an illuminator, a camera, a video recorder, a laser pointer, a communications component, an IFF device, an attachment arm, a visor, a face shield, and goggles. ### Claim 8 (depends on 3) The helmet accessory attachment system of claim 3, further comprising at least one accessory, wherein the at least one accessory includes a mandible guard. ### Claim 9 (depends on 1) The helmet accessory attachment system of claim 1, wherein the movable member is pivotable within the first channel. ### Claim 10 (depends on 1) The helmet accessory attachment system of claim 1, wherein the first channel is oriented substantially parallel to, or in alignment with, the second channel. ### Claim 11 (depends on 1) The helmet accessory attachment system of claim 1, wherein the mounting portion is selectively attachable to a rail on the helmet. ### Claim 12 (depends on 1) The helmet accessory attachment system of claim 1, wherein the mounting portion is integrally formed with the helmet. ### Claim 13 (depends on 1) The helmet accessory attachment system of claim 1, wherein the biasing element comprises a resilient ring. ### Claim 14 (depends on 1) The helmet accessory attachment system of claim 1, wherein the biasing element comprises a spring. ### Claim 15 (depends on 1) The helmet accessory attachment system of claim 1, wherein the biasing element applies a force to the position member and movable member to bias the movable member toward the home position. ### Claim 16 (depends on 1) The helmet accessory attachment system of claim 1, further comprising the helmet, wherein the mounting portion is attached to the helmet. ### Claim 17 A helmet accessory attachment system comprising: an attachment portion comprising a biasing element, a position member, and a movable member selectively movable between a home position and a release position, wherein the biasing element biases the movable member toward the home position, and a distance between the position member and the movable member in the home position is different from a distance between the position member and the movable member in the release position wherein the attachment portion includes an elongate slot, and a portion of the movable member is slidable in the elongate slot; and a mounting portion attachable to a helmet, wherein the mounting portion comprises a first channel to receive the movable member, and a second channel to retain the position member with the movable member moved toward or in the home position and to release the position member when the movable member is in the release position. ### Claim 18 (depends on 17) The helmet accessory attachment system of claim 17, wherein the attachment portion is pivotable about the movable member when the movable member is positioned within the first channel. ### Claim 19 (depends on 17) The helmet accessory attachment system of claim 17, wherein the movable member is linearly movable. ### Claim 20 (depends on 17) The helmet accessory attachment system of claim 17, wherein the attachment portion is configured to selectively retain at least one accessory. ### Claim 21 (depends on 20) The helmet accessory attachment system of claim 20, wherein the at least one accessory includes a mandible guard. ### Claim 22 (depends on 17) The helmet accessory attachment system of claim 17, wherein the first channel is oriented substantially parallel to, or in alignment with, the second channel. ### Claim 23 (depends on 17) The helmet accessory attachment system of claim 17, wherein the biasing element comprises a resilient ring. ### Claim 24 (depends on 17) The helmet accessory attachment system of claim 17, wherein the first channel comprises a first opening and the second channel comprises a second opening, wherein a first distance between the first opening and second opening is greater than a second distance from the movable member to the position member in the home position. ### Claim 25 (depends on 17) The helmet accessory attachment system of claim 17, wherein the first channel comprises a first opening and the second channel comprises a second opening, wherein a first distance between the first opening and second opening is less than a second distance from the movable member to the position member in the release position. ### Claim 26 A method of removably attaching an attachment portion to a mounting portion of a helmet, the attachment portion comprising a biasing element, a position member, an elongate slot, and a movable member selectively movable between a home position relative to the attachment portion and a release position relative to the attachment portion, wherein the biasing element biases the movable member toward the home position and toward the position member, the method comprising: moving the movable member into a first channel of a mounting portion; moving the movable member to the release position; rotating the attachment portion to align the position member with a second channel of the mounting portion; and permitting the attachment portion to move toward the home position such that the position member is drawn into the second channel of the mounting portion as the movable member moves toward the home position and toward the position member by sliding along the elongate slot. ### Claim 27 (depends on 26) The method claim 26, wherein rotating the attachment portion comprises pivoting the attachment portion about the movable member. ### Claim 28 (depends on 26) The method of claim 26, further comprising: moving the movable member to the release position such that the position member is removed from the second channel of the mounting portion; rotating the attachment portion to take the position member out of alignment with the second channel of the mounting portion; and removing the movable member from the first channel of the mounting portion. ### Claim 29 (depends on 26) The method of claim 26, wherein the movable member comprises a slide member, and moving the movable member into a first channel of a mounting portion comprises sliding the slide member. ### Claim 30 (depends on 26) The method of claim 26, further comprising attaching an accessory to the attachment portion. ### Claim 31 (depends on 30) The method of claim 30, wherein attaching an accessory to the attachment portion further comprises attaching at least one of an illuminator, a camera, a video recorder, a laser pointer, a communications component, an IFF device, an attachment arm, a visor, a face shield, and goggles to the attachment portion. ### Claim 32 (depends on 26) The method of claim 26, wherein attaching an accessory to the attachment portion further comprises attaching at least a mandible guard to the attachment portion. ### Claim 33 (depends on 26) The method of claim 26, wherein moving the movable member to the release position further comprises moving the movable member to a first distance from the position member, wherein the first distance is greater than a second distance between a first opening of the first channel and a second opening of the second channel. ### Claim 34 (depends on 26) The method of claim 26, wherein releasing the attachment portion further comprises moving the movable member to a first distance from the position member, wherein the first distance is less than a second distance between a first opening of the first channel and a second opening of the second channel. ### Claim 35 A helmet accessory attachment system comprising: an accessory; an attachment portion attachable to the accessory, wherein the attachment portion comprises a biasing element, a position member, and a movable member, the movable member being selectively movable between a home position and a release position, wherein the biasing element biases the movable member toward the home position, the attachment portion includes an elongate slot, and a portion of the movable member is slidable in the elongate slot, and a distance between the position member and the movable member in the home position is different from a distance between the position member and the movable member in the release position, and wherein the position member is retainable in a channel of a mounting portion with the movable member moved toward or in the home position, and releasable from the channel of the mounting portion with the movable member in the release position. ### Claim 36 (depends on 35) The helmet accessory attachment system of claim 35, wherein the accessory comprises a mandible guard. ### Claim 37 (depends on 35) The helmet accessory attachment system of claim 35, wherein the movable member is linearly movable. ### Claim 38 (depends on 17) The helmet accessory attachment system of claim 17, wherein the position member is closer to the movable member with the movable member in the home position than with the movable member in the release position. ### Claim 39 (depends on 35) The helmet accessory attachment system of claim 35, wherein the position member is closer to the movable member with the movable member in the home position than with the movable member in the release position. ### Claim 40 (depends on 17) The helmet accessory attachment system of claim 17, wherein the mounting portion is integrally formed with the helmet. ### Claim 41 (depends on 17) The helmet accessory attachment system of claim 17 wherein the biasing element comprises a spring. ### Claim 42 (depends on 17) The helmet accessory attachment system of claim 17, further comprising the helmet, wherein the mounting portion is attached to the helmet. ### Claim 43 (depends on 26) The method of claim 26, further comprising attaching the mounting portion to a helmet.