# US 8,542,973 B2 · Fiber optic distribution device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,973 B2 - Document ID: US8542973B2 - Status: Granted - Kind: B2 - Application number: 13/090,621 - Filed: 2011-04-20 - Published: 2011-10-27 - Granted: 2013-09-24 - Earliest claimed: 2010-04-23 - Assignees: CCS Technology, Inc. - Applicants: Grzegorz Fabrykowski; Grzegorz Konrad Gralewski-Sek - Inventors: Grzegorz Fabrykowski; Grzegorz Konrad Gralewski-Sek - Web page: https://patentgrep.com/patent/US8542973B2 ## CPC - G02B 6/501: {underground installation of connection boxes} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A fiber optic distribution device for handling fiber optic distribution points is disclosed. The device comprises a housing mountable below floor level; a drawer carrying fiber optic modules to which fiber optic cables can be connected thereby providing fiber optic distribution points. Guide rails are attached to the drawer and act together with guide rails attached to the housing allowing a linear movement of the drawer relative to the housing between a first position in which the drawer is positioned inside the housing below floor level and a second position in which the drawer is positioned at least partly outside the housing above floor level. A locking mechanism is pivotably attached to the drawer. The center of gravity of the locking mechanism is positioned offset from a pivoting axis of the locking mechanism so that the locking mechanism automatically locks the drawer in the second position when said drawer is moved from said first position into said second position. ## Claims ### Claim 1 A fiber optic distribution device for handling fiber optic distribution points, comprising: a housing mountable below floor level, the housing having guide rails; a drawer carrying fiber optic modules to which fiber optic cables can be connected thereby providing fiber optic distribution points, wherein the drawer has guide rails, and wherein the guide rails of the drawer act with the guide rails of the housing to allow a linear movement of the drawer relative to the housing between a first position in which the drawer is positioned inside the housing below floor level and a second position in which the drawer is positioned at least partly outside the housing above floor level; and a locking mechanism pivotably attached to the drawer, wherein a center of gravity of said locking mechanism is positioned offset from a pivoting axis of said locking mechanism so that the locking mechanism automatically locks the drawer in the second position when the drawer is moved from said first position into said second position. ### Claim 2 (depends on 1) The fiber optic distribution device of claim 1, wherein the drawer is in a cross sectional view U-shaped having an upper top wall to which a handle is attached and having two opposite side walls to which the guide rails are attached, and wherein the drawer is open at a front side and a back side allowing access to the fiber optic modules carried by the drawer from two opposite sides. ### Claim 3 (depends on 1) The fiber optic distribution device of claim 1, wherein the housing is in a cross sectional view U-shaped having a lower bottom wall and having two opposite side walls to which the guide rails are attached, the guide rails acting together with the guide rails attached to the drawer. ### Claim 4 (depends on 1) The fiber optic distribution device of claim 1, wherein the locking mechanism comprises at least one locking bracket pivotably attached to a side wall of the drawer and having an oblong hole acting together which a locking pin extending from a side wall of the housing in such a way that when the drawer is moved from the first position into the second position the oblong hole is moved relative to the locking pin extending into the oblong hole. ### Claim 5 (depends on 4) The fiber optic distribution device of claim 4, wherein the locking mechanism comprises a first locking bracket and a second locking bracket, wherein the first locking bracket is pivotably attached to a first side wall of the drawer and the second locking bracket is pivotably attached to a second side wall of the drawer. ### Claim 6 (depends on 5) The fiber optic distribution device of claim 5, wherein the first locking bracket and the second locking bracket are connected by a common locking handle. ### Claim 7 (depends on 6) The fiber optic distribution device of claim 6, wherein at least one of the first locking bracket locking handle and the second locking bracket locking handle is parallel to the handle of the drawer. ### Claim 8 (depends on 6) The fiber optic distribution device of claim 6, wherein the locking mechanism is releasable by lifting up the drawer and by simultaneously operating the locking handle thereby pivoting the locking bracket into a releasing direction so that the lower locking section of the oblong hole releases the respective locking pin from the lower locking section, thereby releasing the drawer from the second position. ### Claim 9 (depends on 5) The fiber optic distribution device of claim 5, wherein each of the first locking bracket and the second locking bracket has an individual locking handle. ### Claim 10 (depends on 4) The fiber optic distribution device of claim 4, wherein when the drawer is moved from the first position to the second position the oblong hole of the at least one locking bracket is moved relative to the locking pin so that the locking pin acts against a lower boundary of the oblong hole and that the at least one locking bracket is pivoted automatically in a locking direction so that the locking pin automatically extends into a lower locking section of the oblong hole thereby automatically locking the drawer in the second position. ### Claim 11 (depends on 10) The fiber optic distribution device as claimed in claim 10, wherein the locking section of the oblong hole is provided by one of a warped, beveled, and curved section of the oblong hole.