# US 10,368,781 B2 · Device for measuring the circumference of a child's head > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,368,781 B2 - Document ID: US10368781B2 - Status: Granted - Kind: B2 - Application number: 15/625,002 - Filed: 2017-06-16 - Published: 2017-12-21 - Granted: 2019-08-06 - Earliest claimed: 2016-06-16 - Assignees: Maureen Shifflett; Sandra Griffin - Applicants: Maureen Shifflett; Sandra Griffin - Inventors: Maureen Shifflett; Sandra Griffin - Web page: https://patentgrep.com/patent/US10368781B2 ## CPC - A61B 5/107: Measuring physical dimensions, e.g. size of the entire body or parts thereof - A61B 5/1072: {measuring distances on the body, e.g. measuring length, height or thickness (A61B5/1076 takes precedence)} - A61B 5/1075: {for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer (A61B8/0858 takes precedence)} - A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles} - A61B 5/6814: {Head} - G01B 3/10: Measuring tapes - G01B 5/025: {Measuring of circumference; Measuring length of ring-shaped articles (G01B5/0035 takes precedence)} - A61B 5/6831: {Straps, bands or harnesses} - A61B 8/0808: {for diagnosis of the brain} - G01N 2800/28: Neurological disorders - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract A measurement device for measuring the circumference of a human head. The measurement device includes a generally circumferential body that fits around a human head. The generally circumferential body has a receiver segment with an elongated geometry. The receiver segment includes an adjustment end receiver. The receiver segment is flexible. The generally circumferential body also has an adjustment segment with a measurement end. The adjustment segment measurement end has a diameter that is narrower than the receiver segment adjustment end receiver diameter. The adjustment segment has a measurement indicator that extends from the measurement end. The adjustment segment is flexible. The adjustment segment measurement end is adjustably inserted into the receiver segment sliding end receiver. The visual measurement indicator is operable with respect to the receiver segment adjustment end receiver. ## Claims ### Claim 1 A measurement device for measuring the circumference of a human head, the measurement device comprising: a generally circumferential body that fits around a human head, the generally circumferential body comprising: a receiver segment comprising an elongated geometry, the receiver segment comprising an adjustment end receiver, the receiver segment being flexible; and an adjustment segment comprising a measurement end, the adjustment segment measurement end comprising a diameter that is narrower than the receiver segment adjustment end receiver, the adjustment segment comprising a visual measurement indicator extending from the measurement end, the adjustment segment being flexible, wherein the adjustment segment measurement end is adjustably inserted into the receiver segment adjustment end receiver, wherein the visual measurement indicator is operable with respect to the receiver segment adjustment end receiver. ### Claim 2 (depends on 1) The measurement device of claim 1, wherein the adjustment segment and the receiver segment comprise a unitary construction. ### Claim 3 (depends on 1) The measurement device of claim 1, wherein the adjustment segment measurement indicator comprises a series of evenly-spaced visual features. ### Claim 4 (depends on 1) The measurement device of claim 1, wherein the adjustment segment measurement indicator comprises a series of evenly-spaced notches. ### Claim 5 (depends on 1) The measurement device of claim 1, wherein the adjustment segment further comprises a base end with a diameter and the adjustment segment measurement end comprises a diameter common with the base end diameter. ### Claim 6 (depends on 5) The measurement device of claim 5, wherein the receiver segment comprises a base end receiver, wherein the adjustment segment base end is fixed within the receiver segment base end receiver through a friction fit. ### Claim 7 (depends on 6) The measurement device of claim 6, wherein the adjustment segment base end is fixed within the receiver segment base end receiver through adhesive. ### Claim 8 (depends on 6) The measurement device of claim 6, wherein the receiver segment comprises a hollow core extending between the receiver segment base end receiver and the receiver segment adjustment end receiver. ### Claim 9 (depends on 6) The measurement device of claim 6, wherein the receiver segment base end receiver and the receiver segment adjustment end receiver comprise a common diameter. ### Claim 10 (depends on 1) The measurement device of claim 1, wherein the receiver segment is about 30 cm in length. ### Claim 11 (depends on 1) The measurement device of claim 1, wherein the adjustment segment is about 32 cm in length. ### Claim 12 (depends on 1) The measurement device of claim 1, wherein the adjustment segment measurement end is telescopically received within the receiver segment adjustment end receiver. ### Claim 13 (depends on 12) The measurement device of claim 12, wherein the generally circumferential body comprises a range of circumference between about 30 cm and about 60 cm. ### Claim 14 (depends on 1) The measurement device of claim 1, wherein the receiver segment adjustment end receiver comprises an inner circumference of about 2 cm. ### Claim 15 (depends on 1) The measurement device of claim 1, wherein the receiver segment adjustment end receiver comprises an inner diameter of about 0.6 cm. ### Claim 16 (depends on 1) The measurement device of claim 1, wherein the adjustment segment measurement end comprises an outer circumference of about 1.75 cm. ### Claim 17 (depends on 1) The measurement device of claim 1, wherein the adjustment segment measurement end comprises an outer diameter of about 0.5 cm. ### Claim 18 (depends on 1) The measurement device of claim 1, wherein the measurement device is comprised of antimicrobial plastic. ### Claim 19 (depends on 1) The measurement device of claim 1, wherein the generally circumferential body comprises a general D-shape with the receiver segment comprising a larger arc circumference than the adjustment segment. ### Claim 20 (depends on 1) The measurement device of claim 1, further comprising a stopper assembly configured to releasably maintain the adjustment segment within the receiver segment.