# US 9,872,550 B2 · Applicator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,872,550 B2 - Document ID: US9872550B2 - Status: Granted - Kind: B2 - Application number: 14/862,794 - Filed: 2015-09-23 - Published: 2016-04-07 - Granted: 2018-01-23 - Earliest claimed: 2014-10-01 - Assignees: Mitsubishi Pencil Company, Limited - Applicants: Mitsubishi Pencil Company, Limited - Inventors: Nobuyuki Nakajima; Shigeki Ooba; Tomoko Hasegawa; Yuuya Nagasaka; Keiichiro Takachiyo - Web page: https://patentgrep.com/patent/US9872550B2 ## CPC - A45D 34/04: Appliances specially adapted for applying liquid, e.g. using roller or ball - A45D 34/042: {using a brush or the like} - A45D 40/28: Appliances specially adapted for spreading already applied paint - A46B 9/005: {where the brushing material is not made of bristles, e.g. sponge, rubber or paper} - A46B 11/0006: {specially adapted to feed the bristle upper surface} - A46B 11/0055: {with a reciprocating piston or plunger acting as the pressurising means} - A61M 35/006: {using sponges, foams, absorbent pads or swabs as spreading means} - A46B 2200/1046: Brush used for applying cosmetics - A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING - A46B: BRUSHES (handles not integral with brushware B25G) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract To provide an applicator with an application body that is nonabsorbent and can uniformly spread and apply an application liquid over the surface to be applied on without scraping the applied liquid during application. The application body includes a membranous part that is easily deformable in applying liquid, and a cavity part enclosed by the membranous part, and constructed such that when the applying surface of the membranous part comes into contact with the surface to be applied on, the contact surface of the membranous part fits closely following the surface to be applied on by the pressure of the membranous part acting onto the contact surface of the surface to be applied on. ## Claims ### Claim 1 An applicator for applying an application liquid on a surface to be applied on by means of an application body, the applicator comprising: an application body comprising: a membranous part that is easily deformable in applying liquid; and a cavity part enclosed by the membranous part, wherein when an applying surface of the membranous part comes into contact with a surface to be applied on, the applying surface of the membranous part in contact with the surface to be applied on follows to a contact surface of the surface to be applied on by a pressure of the membranous part acting onto the contact surface of the surface to be applied on, and a liquid delivery hole is arranged in an area other than the applying surface of the application body. ### Claim 2 (depends on 1) The liquid applicator according to claim 1, wherein the applying surface of the application body is formed of a nonabsorbent surface. ### Claim 3 (depends on 1) The liquid applicator according to claim 1, wherein the cavity part contains a substance that forms a soft gel after filling by cross-linking reaction. ### Claim 4 (depends on 1) The liquid applicator according to claim 1, wherein the cavity part contains a substance that foams after filling to form a soft sponge. ### Claim 5 (depends on 1) The liquid applicator according to claim 1, wherein the cavity part contains a filler that has been made viscous by a thickener. ### Claim 6 (depends on 1) The liquid applicator according to claim 1, wherein the cavity part contains air, and the air is tightly sealed in the cavity part by adjusting a thickness of the membranous part, or a shape of the cavity part is maintained by virtue of an elastic force of the membranous part in a state such that an air is not sealed in the cavity part. ### Claim 7 An applicator for applying an application liquid on a surface to be applied on by means of an application body, the applicator comprising: an application body comprising: a membranous part that is easily deformable in applying liquid; and a cavity part enclosed by the membranous part, wherein when an applying surface of the membranous part comes into contact with a surface to be applied on, the applying surface of the membranous part in contact with the surface to be applied on follows to a contact surface of the surface to be applied on by a pressure of the membranous part acting onto the contact surface of the surface to be applied on, and the application body is formed with a rigid part that has a greater rigidity than the applying surface side and is arranged on an opposite side of the applying surface with respect to a liquid flow passage so as to prevent overall distortion of the application body during liquid application. ### Claim 8 (depends on 7) The liquid applicator according to claim 7, wherein the application body is formed so that the applying surface side is wider than the rigid part when viewed in a cross section perpendicular to the liquid flow passage. ### Claim 9 (depends on 7) The liquid applicator according to claim 7, wherein the applying surface of the application body is formed of a nonabsorbent surface. ### Claim 10 (depends on 7) The liquid applicator according to claim 7, wherein the cavity part contains a substance that forms a soft gel after filling by cross-linking reaction. ### Claim 11 (depends on 7) The liquid applicator according to claim 7, wherein the cavity part contains a substance that foams after filling to form a soft sponge. ### Claim 12 (depends on 7) The liquid applicator according to claim 7, wherein the cavity part contains a filler that has been made viscous by a thickener. ### Claim 13 (depends on 7) The liquid applicator according to claim 7, wherein the cavity part contains air, and the air is tightly sealed in the cavity part by adjusting a thickness of the membranous part, or a shape of the cavity part is maintained by virtue of an elastic force of the membranous part in a state such that an air is not sealed in the cavity part.