# US 11,304,472 B2 · Helmet-specific inner cap > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,304,472 B2 - Document ID: US11304472B2 - Status: Granted - Kind: B2 - Application number: 15/828,646 - Filed: 2017-12-01 - Published: 2019-01-17 - Granted: 2022-04-19 - Earliest claimed: 2017-07-14 - Applicants: Jack Ji - Inventors: Jack Ji - Web page: https://patentgrep.com/patent/US11304472B2 ## CPC - A42C 5/04: Ventilating arrangements for head coverings (for helmets A42B3/28) - A42B 1/008: with means for heating or cooling (ventilating arrangements for head coverings A42C5/04) - A42B 3/10: Linings (A42B3/16 takes precedence) - A42C: MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS - A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00) ## Abstract The use of select knitting processes allow the production of a cap liner with a separate eye opening and several distinct mesh structures that are individually designed to enhance the comfort of the eyes, nose, and mouth of the wearer. Generally, the cap liner comprises: (a) a cap body comprising an upper mesh structure; (b) a neck retainer that is integrally formed with the cap body; (c) an eye opening positioned in the cap body; (d) a first ear position positioned in the cap body comprising a second mesh structure; (e) a second ear position positioned in the cap body comprising a third mesh structure; (f) a nasal ventilation positioned in the cap body comprising a fourth mesh structure; (g) a mouth ventilation positioned in the cap body comprising the fourth mesh structure or a fifth mesh structure; (h) a neck retainer base positioned on the neck retainer that is integrally formed with the neck retainer and comprises a sixth mesh structure or a two-layered structure; and (i) an edging at least partially surrounding the eye opening that comprises a three-layered structure. ## Claims ### Claim 1 A cap liner for a helmet, said cap liner comprising: (a) a cap body, wherein the cap body comprises an integral body comprising an upper end portion comprising a first mesh structure; (b) a neck retainer, wherein the cap body and the neck retainer are integrally connected; (c) an eye opening positioned in the cap body; (d) a first ear position positioned in the cap body, wherein the first ear position comprises a second mesh structure; (e) a second ear position positioned in the cap body, wherein the second ear position comprises a third mesh structure; (f) a nasal ventilation positioned in the cap body, wherein the nasal ventilation comprises a fourth mesh structure; and (g) a mouth ventilation positioned in the cap body, wherein the mouth ventilation comprises the fourth mesh structure or a fifth mesh structure. ### Claim 2 (depends on 1) The cap liner according to claim 1, further comprising a neck retainer base positioned on the neck retainer, wherein the neck retainer base is integrally formed with the neck retainer and comprises a ribbed structure. ### Claim 3 (depends on 2) The cap liner according to claim 2, further comprising an edging at least partially surrounding the eye opening, wherein the edging comprises a ribbed structure. ### Claim 4 (depends on 3) The cap liner according to claim 3, wherein the mouth ventilation comprises the fifth mesh structure. ### Claim 5 (depends on 1) The cap liner according to claim 1, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise vertical, oblique, or staggered structures. ### Claim 6 (depends on 1) The cap liner according to claim 1, wherein the cap body, the neck retainer, the first ear position, the second ear position, the nasal ventilation, and the mouth ventilation are produced from a polyester thread. ### Claim 7 (depends on 1) The cap liner according to claim 1, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise a basis weight of at least 25 gsm and exhibit an air permeability of at least 400 ft3/min per ft2 as measured according to ASTM D737-96. ### Claim 8 A cap liner for a helmet, said cap liner comprising: (a) a cap body, wherein the cap body comprises an integral body comprising an upper end portion comprising a first mesh structure; (b) a neck retainer, wherein the cap body and the neck retainer are integrally connected; (c) an eye opening positioned in the cap body; (d) a first ear position positioned in the cap body, wherein the first ear position comprises a second mesh structure; (e) a second ear position positioned in the cap body, wherein the second ear position comprises a third mesh structure; (f) a nasal ventilation positioned in the cap body, wherein the nasal ventilation comprises a fourth mesh structure; (g) a mouth ventilation positioned in the cap body, wherein the mouth ventilation comprises the fourth mesh structure or a fifth mesh structure; (h) a neck retainer base positioned on the neck retainer, wherein the neck retainer base is integrally formed with the neck retainer and comprises a sixth mesh structure or a ribbed structure; and (i) an edging at least partially surrounding the eye opening, wherein the edging comprises a ribbed structure. ### Claim 9 (depends on 8) The cap liner according to claim 8, wherein the mouth ventilation comprises the fifth mesh structure. ### Claim 10 (depends on 8) The cap liner according to claim 8, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise vertical, oblique, or staggered structures. ### Claim 11 (depends on 8) The cap liner according to claim 8, wherein the cap body, the neck retainer, the first ear position, the second ear position, the nasal ventilation, the mouth ventilation, the neck retainer base, and the edging are produced from a polyester thread. ### Claim 12 (depends on 8) The cap liner according to claim 8, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise a basis weight of at least 25 gsm and exhibit an air permeability of at least 400 ft3/min per ft2 as measured according to ASTM D737-96. ### Claim 13 (depends on 8) The cap liner according to claim 8, wherein the neck retainer base comprises the ribbed structure. ### Claim 14 A method for producing a cap liner for a helmet, the method comprising knitting a polyester thread to form the cap liner, wherein the cap liner comprises: (a) a cap body, wherein the cap body comprises an integral body comprising an upper end portion comprising a first mesh structure; (b) a neck retainer, wherein the cap body and the neck retainer are integrally connected; (c) an eye opening positioned in the cap body; (d) a first ear position positioned in the cap body, wherein the first ear position comprises a second mesh structure; (e) a second ear position positioned in the cap body, wherein the second ear position comprises a third mesh structure; (f) a nasal ventilation positioned in the cap body, wherein the nasal ventilation comprises a fourth mesh structure; and (g) a mouth ventilation positioned in the cap body, wherein the mouth ventilation comprises the fourth mesh structure or a fifth mesh structure. ### Claim 15 (depends on 14) The method according to claim 14, wherein the knitting comprises weft knitting. ### Claim 16 (depends on 14) The method according to claim 14, wherein the knitting is performed with a jacquard loom using 12 gauge needles and/or 14 gauge needles. ### Claim 17 (depends on 14) The method according to claim 14, wherein the cap liner further comprises a neck retainer base positioned on the neck retainer, wherein the neck retainer base is integrally formed with the neck retainer and comprises a ribbed structure. ### Claim 18 (depends on 17) The method according to claim 17, wherein the cap liner further comprises an edging at least partially surrounding the eye opening, wherein the edging comprises a ribbed structure. ### Claim 19 (depends on 14) The method according to claim 14, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise a basis weight of at least 25 gsm and exhibit an air permeability of at least 400 ft3/min per ft2 as measured according to ASTM D737-96. ### Claim 20 (depends on 14) The method according to claim 14, wherein the first mesh structure, the second mesh structure, the third mesh structure, the fourth mesh structure, and the fifth mesh structure comprise vertical, oblique, or staggered structures.