# US 12,764,216 B2 · Protective frame for mobile phone camera > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,216 B2 - Document ID: US12764216B2 - Status: Granted - Kind: B2 - Application number: 18/804,153 - Filed: 2024-08-14 - Published: 2025-02-20 - Granted: 2026-10-13 - Earliest claimed: 2023-08-15 - Assignees: Casetagram Limited - Applicants: Casetagram Limited - Inventors: Pui Sun Wesley Ng - Web page: https://patentgrep.com/patent/US12764216B2 ## CPC - H04M 1/04: Supports for telephone transmitters or receivers - A45C 11/00: Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 (specially adapted for toiletry or cosmetic equipment A45D29/20, A45D44/18; travelling sewing kits A45F3/48) - A45C 13/001: {Accessories} - A45C 13/005: {Hinges} - A45C 13/04: Frames - H04M 1/0264: {for a camera module assembly} - A45C 11/002: {for storing portable handheld communication devices, e.g. pagers or smart phones} - A45C 2200/15: Articles convertible into a stand, e.g. for displaying purposes - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - A45C: PURSES; LUGGAGE; HAND CARRIED BAGS ## Abstract The present invention provides a protective frame for phone camera, including: a lower frame fixedly mountable on a phone case; and an upper frame connected to the lower frame through a hinge structure including: a shaft positioning block; a shaft sleeve; a pair of shaft brackets; and a first pivot shaft. The shaft sleeve has a positioning strip and the hollow channel has a positioning groove coupled to the positioning strip such that the shaft sleeve can be assembled in the hollow channel in a quickly detachable manner. A front end of the pivot shaft is configured to pass through at least one shaft hole of the shaft brackets and inserted into an axial channel of the shaft sleeve by means of transition fit such that the upper frame is rotatable while capable to maintain a stable state when being flipped at a desired angle relative to the lower frame. ## Claims ### Claim 1 A protective frame for mobile phone camera, comprising: a lower frame fixedly mountable on a mobile phone case; and an upper frame connected to the lower frame through a hinge structure; wherein the hinge structure comprises: a shaft positioning block arranged on the lower frame, and having a hollow channel extending through and along a longitudinal direction of the shaft positioning block; a shaft sleeve having an axial channel; a pair of shaft brackets arranged on the upper frame, each having a shaft hole; and a first pivot shaft having a front end; wherein the shaft sleeve further comprises a positioning strip protruded from its outer circumferential wall and the hollow channel has a positioning groove recessed from its inner circumferential wall, the positioning groove being configured to couple to the positioning strip such that the shaft sleeve can be assembled in the hollow channel in a detachable manner; and wherein the front end of the first pivot shaft is configured to pass through at least one of the shaft holes and inserted into the axial channel by means of transition fit such that the upper frame is rotatable about the hinge structure while capable to maintain a stable state when the upper frame is flipped relative to the lower frame at a desired angle to act as a supportive stand for positioning the phone. ### Claim 2 (depends on 1) The protective frame according to claim 1, wherein: the lower frame has four sides comprising: a lower frame inner side forming part of the hinged structure, a lower frame outer side opposite to the lower frame inner side, a first lower frame lateral side connecting a first end of the lower frame inner side to a first end of the lower frame outer side, and a second lower frame lateral side connecting a second end of the lower frame inner side to a second end of the lower frame outer side; and the lower frame further comprises at least one clip-shaped fastener arranged on a bottom surface of each of the four sides, configured to couple with a corresponding edge of a lens window of the mobile phone case such that when the lower frame is pressed fit into the mobile phone case, the clip-shaped fasteners are fastened and invertedly clipped on the edges of the lens window respectively. ### Claim 3 (depends on 2) The protective frame according to claim 2, wherein: the upper frame has four sides including: an upper frame inner side forming part of the hinged structure, an upper frame outer side opposite to the upper frame inner side, a first upper frame lateral side connecting a first end of the upper frame inner side to a first end of the upper frame outer side, and a second upper frame lateral side connecting a second end of the upper frame inner side to a second end of the upper frame outer side; the protective frame further comprises: a pair of protruded step surfaces arranged on the first and second lower frame lateral side top surfaces respectively; and a pair of recessed step surfaces arranged on the first and second upper frame lateral side bottom surfaces; and each protruded step surface is configured to overlap vertically with a corresponding recessed step surface to form a seamless joint. ### Claim 4 (depends on 3) The protective frame according to claim 3, wherein: the protective frame further comprises: a first magnetic coupling element arranged on a bottom surface of the upper frame outer side; and a second magnetic coupling element arranged on a top surface of the lower frame outer side; and the first and second magnetic coupling elements are mutually attracted to each other. ### Claim 5 (depends on 3) The protective frame according to claim 3, wherein the shaft positioning block is formed on a top surface of the lower frame inner side and integrated with the lower frame to form an integral piece. ### Claim 6 (depends on 3) The protective frame according to claim 3, wherein the pairs of shaft brackets are formed on a bottom surface of the upper frame inner side and integrated with the upper frame to form an integral piece. ### Claim 7 (depends on 1) The protective frame according to claim 1, wherein the first pivot shaft comprises an anti-slip structure arranged on an outer circumferential wall of an exposed end of the first pivot shaft. ### Claim 8 (depends on 1) The protective frame according to claim 1, wherein the lower and upper frames are made of metals, metal alloys or hard plastics. ### Claim 9 (depends on 1) The protective frame according to claim 1, wherein the axial channel is a through-hole or a blind hole. ### Claim 10 (depends on 1) The protective frame according to claim 1, wherein the protective frame further comprises indentation gap formed between the outer sides of the lower frame and upper frame when the protective case is at a closed state. ### Claim 11 (depends on 1) The protective frame according to claim 1, wherein the hinge structure further comprises a second pivot shaft having a front end, each of the front ends of the first and second pivot shafts is configured to pass through a corresponding shaft hole and inserted into the axial channel. ### Claim 12 (depends on 11) The protective frame according to claim 11, wherein each of the first and second pivot shafts comprise an anti-slip structure arranged on an outer circumferential wall of an exposed end of the first and second pivot shafts. ### Claim 13 (depends on 1) A mobile phone case comprising the protective frame according to claim 1. ### Claim 14 (depends on 13) The mobile phone case according to claim 13, wherein the mobile phone case comprises a back surface with a layer of heterogeneous material disposed thereon. ### Claim 15 (depends on 14) The mobile phone case according to claim 14, wherein the layer of heterogeneous material comprises a specular reflective material.