# US 2019/0167019 A1 · Hook assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167019 A1 - Document ID: US20190167019A1 - Status: Published application - Kind: A1 - Application number: 16/210,194 - Filed: 2018-12-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-06 - Assignees: National Pingtung University of Science and Technology - Applicants: National Pingtung University of Science & Technology - Inventors: Chien-Ho Ko - Web page: https://patentgrep.com/patent/US20190167019A1 ## CPC - A47G 1/17: using adhesives, suction or magnetism {(A47G1/168 takes precedence; suction cups for attaching purposes, equivalent means using adhesives F16B47/00)} - A47G 1/20: Picture hooks; X-hooks (plugs or hooks for general use F16B13/00, F16B45/00) - A47G 25/0642: {preventing overloading} - F16B 45/00: Hooks; Eyes (if the attaching parts or means are concerned, groups F16B13/00, F16B15/00, F16B19/00, F16B25/00, F16B35/00, F16B47/00 take precedence; for hanging pictures or the like A47G1/16; towing hooks for ships B63B21/58; for hoisting or hauling purposes B66C; hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point F16G11/14) - F16B 47/003: {using adhesives for attaching purposes (using adhesives for connecting constructional elements F16B11/006)} - A47G 1/175: {Stretch releasing adhesives} - F16B 2200/95: with markings, colours, indicators or the like - A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B) - 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 A hook assembly includes a base having a chamber, a hook portion provided on a bottom of the base, and a lean indicator mounted in the base via a second pivotal portion. The base includes an opening, a window portion, and an adhesion portion which is adhered to a surface. The adhesion portion and the opening are provided on a back plate. The base includes two first pivotal portions. A center of each first pivotal portion is spaced from the surface at a spacing. The lean indicator includes first and second faces. The first face has a feature different from that of the second face. A central axis of the second pivotal portion does not pass through a center of gravity of the lean indicator. The central axis of the second pivotal portion is spaced from each edge of the lean indicator at a distance slightly larger than the spacing. ## Claims ### Claim 1 A hook assembly comprising: a base having a chamber, wherein the base includes an adhesion portion, an opening and a window portion, wherein the adhesion portion is configured to be adhered to a surface, wherein the adhesion portion and the opening are provided on a back plate of the base, wherein the opening extends through the back plate of the base and the adhesion portion, wherein the opening has a first width, wherein the window portion intercommunicates with the chamber of the base, wherein the base includes two first pivotal portions respectively provided on two opposite lateral plates of the base, and wherein a center of each of the two first pivotal portions is spaced from the surface at a spacing; a hook portion provided on a bottom of the base; and a lean indicator pivotally mounted in the chamber of the base via a second pivotal portion, wherein the lean indicator includes a first face and a second face, wherein the first face has a feature different from that of the second face, wherein the lean indicator has a second width smaller than the first width, wherein a central axis of the second pivotal portion does not pass through a center of gravity of the lean indicator, wherein the central axis of the second pivotal portion is spaced from each of two edges of the lean indicator at a distance, and wherein the distance is slightly larger than the spacing. ### Claim 2 (depends on 1) The hook assembly as claimed in claim 1, further comprising a transparent panel coupled with the window portion. ### Claim 3 (depends on 1) The hook assembly as claimed in claim 1, wherein the second pivotal portion is in a form of a hole extending through the lean indicator from one lateral side to another lateral side of the lean indicator, and wherein a pivoting member extends through the hole and protrudes beyond the lateral sides of the lean indicator. ### Claim 4 (depends on 1) The hook assembly as claimed in claim 1, wherein the feature includes at least one of shape, appearance and color. ### Claim 5 (depends on 1) The hook assembly as claimed in claim 1, wherein the central axis of the second pivotal portion is spaced from the two edges of the lean indicator to divide the lean indicator into a first half portion and a second half portion, and wherein the first half portion has a first length different from a second length of the second half portion. ### Claim 6 (depends on 1) The hook assembly as claimed in claim 1, wherein the central axis of the second pivotal portion is spaced from the two edges of the lean indicator to divide the lean indicator into a first half portion and a second half portion, and wherein a weighting member is mounted on the first half portion or the second half portion. ### Claim 7 (depends on 1) The hook assembly as claimed in claim 1, wherein the central axis of the second pivotal portion is spaced from the two edges of the lean indicator to divide the lean indicator into a first half portion and a second half portion, and wherein the first half portion has a first area different from a second area of the second half portion ### Claim 8 (depends on 1) The hook assembly as claimed in claim 1, wherein the central axis of the second pivotal portion is spaced from the two edges of the lean indicator to divide the lean indicator into a first half portion and a second half portion, and wherein the first half portion has a first thickness different from a second thickness of the second half portion.