# US 11,027,461 B2 · Apparatus for applying materials over fastener heads protruding from non-horizontal surfaces > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,461 B2 - Document ID: US11027461B2 - Status: Granted - Kind: B2 - Application number: 16/599,808 - Filed: 2019-10-11 - Published: 2020-02-06 - Granted: 2021-06-08 - Earliest claimed: 2017-03-27 - Assignees: The Boeing Company - Applicants: The Boeing Company - Inventors: John W. Pringle, IV - Web page: https://patentgrep.com/patent/US11027461B2 ## CPC - B29C 39/10: incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)} - F16B 33/004: {Sealing; Insulation (by means of washers F16B43/001)} - F16B 39/021: {by injecting a settable material after the screwing down} - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract An applicator for applying a material over a fastener head, protruding from a non-horizontal surface of a part, comprises an enclosure and a daubing lever. The daubing lever passes through the wall of the enclosure and is movably coupled to the enclosure. The daubing lever comprises an actuation end, located on the outer side of the wall of the enclosure, a working end, located opposite the actuation end on the inner side of the wall of the enclosure, and an abutment portion, located at one of the actuation end, the working end, or between the actuation end and the working end. The applicator further comprises a biaser for imparting a moment on the daubing lever to bias the abutment portion of the daubing lever toward the enclosure. ## Claims ### Claim 1 An applicator for applying a material over a fastener head, protruding from a non-horizontal surface of a part, the applicator comprising: an enclosure,comprising: a wall, comprising: an inner side; an interior surface on the inner side; and an outer side, opposite the inner side; and an interior space, defined by the interior surface of the wall; a daubing lever that passes through the wall of the enclosure and that is movably coupled to the enclosure, and wherein the daubing lever comprises: an actuation end, located on the outer side of the wall of the enclosure; a working end, located opposite the actuation end on the inner side of the wall of the enclosure; and an abutment portion, located at one of the actuation end, the working end, or between the actuation end and the working end; and a biasing element, configured to impart a moment on the daubing lever to bias the abutment portion of the daubing lever toward the enclosure. ### Claim 2 (depends on 1) The applicator according to claim 1, wherein the enclosure comprises a sealing rim that lies in a virtual plane. ### Claim 3 (depends on 2) The applicator according to claim 2, wherein the sealing rim of the enclosure has a circular shape. ### Claim 4 (depends on 1) The applicator according to claim 1, wherein the daubing lever is rotatable relative to the enclosure. ### Claim 5 (depends on 4) The applicator according to claim 4, wherein: the daubing lever comprises a through opening, and the applicator further comprises a shank, fixed to the enclosure and protruding through the through opening of the daubing lever. ### Claim 6 (depends on 5) The applicator according to claim 5, wherein the through opening of the daubing lever is circular. ### Claim 7 (depends on 5) The applicator according to claim 5, wherein the through opening of the daubing lever is a curved slot. ### Claim 8 (depends on 5) The applicator according to claim 5, wherein the through opening of the daubing lever is a straight slot. ### Claim 9 (depends on 5) The applicator according to claim 5, wherein the through opening of the daubing lever has a dogleg shape. ### Claim 10 (depends on 5) The applicator according to claim 5, wherein: the daubing lever further comprises a material passage, located between the actuation end and the working end of the daubing lever. ### Claim 11 (depends on 10) The applicator according to claim 10, wherein: a line, perpendicular to a plane, containing a smallest circumferentially closed section of the through opening, lies in a first plane; a line, perpendicular to a plane, containing a smallest circumferentially closed section of the material passage, lies in a second plane; and the first plane is perpendicular to the second plane. ### Claim 12 (depends on 4) The applicator according to claim 4, wherein the daubing lever is translatable relative to the enclosure. ### Claim 13 (depends on 1) The applicator according to claim 1, wherein: the daubing lever further comprises a tapered portion between the actuation end and the working end of the daubing lever. ### Claim 14 (depends on 13) The applicator according to claim 13, wherein: a line, perpendicular to a plane, containing a smallest circumferentially closed section of the through opening, lies in a first plane; and a symmetry plane of the tapered portion is perpendicular to the first plane. ### Claim 15 (depends on 1) The applicator according to claim 1, wherein the daubing lever is movable relative to the enclosure such that the abutment portion of the daubing lever is capable of contacting the interior surface of the enclosure. ### Claim 16 (depends on 1) The applicator according to claim 1, wherein the working end of the daubing lever comprises one of a roller or a curved paddle. ### Claim 17 (depends on 1) The applicator according to claim 1, wherein the working end of the daubing lever is operable to extend outside of the interior space of the enclosure. ### Claim 18 (depends on 1) The applicator according to claim 1, wherein the biasing element is a rubber band, a spring, or a pneumatic device. ### Claim 19 (depends on 1) The applicator according to claim 1, wherein the biasing element is a rubber band, circumscribing the enclosure and the actuation end of the daubing lever. ### Claim 20 (depends on 1) The applicator according to claim 1, further comprising an inlet, fluidically connected to the enclosure.