# US 10,485,122 B2 · Electrically insulative case including frame having plurality of possible orientations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,485,122 B2 - Document ID: US10485122B2 - Status: Granted - Kind: B2 - Application number: 15/799,467 - Filed: 2017-10-31 - Published: 2019-05-02 - Granted: 2019-11-19 - Earliest claimed: 2017-10-31 - Assignees: ABB Schweiz AG - Applicants: ABB Schweiz AG - Inventors: Ryszard Rzepecki; Tomasz Jan Babik; Piotr Pawel Honkisz; Rafal Marek Mrotek - Web page: https://patentgrep.com/patent/US10485122B2 ## CPC - H05K 5/0217: {Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03)} - H02B 1/066: {with hinged covers (covers for distribution boxes H02G3/14)} - H02B 1/14: Shutters or guards for preventing access to contacts (shielding of isolating-contacts in withdrawable switchgear H02B11/24) - H02B 1/28: dustproof, splashproof, drip-proof, waterproof or flameproof - H02B 1/38: Hinged covers or doors - H05K 5/03: Covers - H01H 19/08: Bases; Stationary contacts mounted thereon - H01H 19/14: Operating parts, e.g. turn knob - H05K 5/0226: {Hinges} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H02B: BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract An electrically insulative case for an electrical device includes a housing defining an interior space. The electrically insulative case also includes a frame operatively coupleable to the housing in a plurality of orientations. The frame defines at least one opening that provides access to the electrical device. An inner sidewall of the frame extends into the interior space. The electrically insulative case further includes a restrictor coupleable to the electrical device such that the restrictor extends adjacent to the frame. The restrictor is arranged to inhibit objects from moving from an exterior of said housing into the interior space. ## Claims ### Claim 1 An electrically insulative case for an electrical device, said electrically insulative case comprising: a housing defining an interior space, said housing arranged to receive the electrical device within the interior space; a frame operatively coupleable to said housing in a plurality of orientations, said frame defining at least one opening that provides access to the electrical device, wherein said frame includes an inner sidewall that extends into the interior space; a restrictor coupleable to the electrical device such that said restrictor extends from the electrical device and along a side surface of said inner sidewall of said frame, wherein said restrictor is arranged to inhibit objects from moving from an exterior of said housing into the interior space; and a cover moveable between an opened position and a closed position, wherein said frame includes a first side and a second side, and wherein said first side includes a first engagement feature coupleable to said cover and said second side includes a second engagement feature coupleable to said cover. ### Claim 2 (depends on 1) The electrically insulative case in accordance with claim 1, wherein said frame is rotationally symmetric about a center point of said frame. ### Claim 3 (depends on 1) The electrically insulative case in accordance with claim 1, wherein said frame further includes a third side and a fourth side, wherein said third side includes a third engagement feature coupleable to said cover and said fourth side includes a fourth engagement feature coupleable to said cover. ### Claim 4 (depends on 3) The electrically insulative case in accordance with claim 3, wherein said first engagement feature, said second engagement feature, said third engagement feature, and said fourth engagement feature each comprise a sleeve defining a channel. ### Claim 5 (depends on 4) The electrically insulative case in accordance with claim 4, wherein said cover comprises a hinge pin arranged to engage any of said sleeves of said first, second, third, and fourth engagement features to couple said cover to said frame, wherein said cover is pivotable about said hinge pin when said cover is coupled to said frame. ### Claim 6 (depends on 5) The electrically insulative case in accordance with claim 5, wherein said sleeves of said first, second, third, and fourth engagement features each include protrusions arranged to engage said hinge pin. ### Claim 7 (depends on 5) The electrically insulative case in accordance with claim 5, wherein said sleeves of said first, second, third, and fourth engagement features each define a plurality of slots. ### Claim 8 (depends on 7) The electrically insulative case in accordance with claim 7, wherein said cover further comprises supports coupled to said hinge pin, said supports extending through the plurality of slots of an associated sleeve when said hinge pin is positioned in the channel defined by said associated sleeve. ### Claim 9 (depends on 1) The electrically insulative case in accordance with claim 1, wherein said cover is at least partially translucent to allow the interior space to be viewed from an exterior of said housing. ### Claim 10 (depends on 1) The electrically insulative case in accordance with claim 1, wherein said housing and said restrictor are arranged to form a labyrinth path from an exterior of said housing into the interior space. ### Claim 11 (depends on 10) The electrically insulative case in accordance with claim 10, wherein said restrictor comprises a base, a collar, and a step extending between said base and said collar. ### Claim 12 (depends on 11) The electrically insulative case in accordance with claim 11, wherein said collar of said restrictor is arranged to extend along said inner sidewall of said frame. ### Claim 13 (depends on 1) The electrically insulative case in accordance with claim 1, further comprising at least one seal extending between said frame and said housing. ### Claim 14 An electrical system comprising: an electrical device; and an electrically insulative case for the electrical device, said electrically insulative case comprising: a housing defining an interior space, said housing arranged to receive the electrical device within the interior space; a frame operatively coupleable to said housing in a plurality of orientations, said frame defining at least one opening that provides access to the electrical device, wherein said frame includes an inner sidewall that extends into the interior space; a restrictor coupleable to said electrical device such that said restrictor extends from said electrical device and along a side surface of said inner sidewall of said frame, wherein said restrictor is arranged to inhibit objects from moving from an exterior of said housing into the interior space; and a cover moveable between an opened position and a closed position, wherein said frame includes a first side and a second side, and wherein said first side includes a first engagement feature coupleable to said cover and said second side includes a second engagement feature coupleable to said cover. ### Claim 15 (depends on 14) The electrical system in accordance with claim 14, wherein said frame further includes a third side and a fourth side, wherein said first side, said second side, said third side, and said fourth side each include a sleeve arranged to engage said cover. ### Claim 16 (depends on 15) The electrical system in accordance with claim 15, wherein said cover comprises a hinge pin arranged to engage any of said sleeves of said first, second, third, and fourth sides to couple said cover to said frame, wherein said cover is pivotable about said hinge pin when said cover is coupled to said frame. ### Claim 17 (depends on 14) The electrical system in accordance with claim 14, wherein said housing and said restrictor are arranged to form a labyrinth path from an exterior of said housing into the interior space. ### Claim 18 A method of manufacturing an electrical system including an electrical device and an electrically insulative case, said method comprising: positioning the electrical device within an interior space of a housing of the electrically insulative case; positioning a frame on the housing such that an inner sidewall of the frame extends into the interior space, the frame defining at least one opening to provide access to the electrical device, wherein the frame is operatively coupleable to the housing in a plurality of orientations; coupling the frame to the housing in an orientation that accommodates the electrical device, wherein the at least one opening is aligned with the electrical device; coupling a restrictor to the electrical device, wherein the restrictor extends from the electrical device and along a side surface of the inner sidewall of the frame and inhibits objects from moving form an exterior of the housing into the interior space; and coupling a cover to a first engagement feature of the frame and to a second engagement feature of the frame, the cover being moveable between an opened position and a closed position. ### Claim 19 (depends on 18) The method in accordance with claim 18, wherein coupling a cover to the frame comprises engaging a hinge pin on the cover with a sleeve on the frame that defines a channel. ### Claim 20 (depends on 18) The method in accordance with claim 18, further comprising positioning the restrictor adjacent the housing such that the restrictor forms a labyrinth path from an exterior of the housing into the interior space. ### Claim 21 (depends on 20) The method in accordance with claim 20, wherein the restrictor includes a base, a collar, and a step, and wherein the method further comprises positioning the restrictor adjacent the frame such that the collar of the restrictor extends along the inner sidewall of the frame.