# US 10,119,854 B2 · Weighing chamber base and draft shield for a precision balance as well as a precision balance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,854 B2 - Document ID: US10119854B2 - Status: Granted - Kind: B2 - Application number: 15/164,245 - Filed: 2016-05-25 - Published: 2016-09-15 - Granted: 2018-11-06 - Earliest claimed: 2013-11-25 - Assignees: Sartorius Lab Instruments GmbH & Co. KG - Applicants: Sartorius Lab Instruments GmbH & Co. KG - Inventors: Otto Kuhlmann; Michael Laubstein; Jan Von Steuben - Web page: https://patentgrep.com/patent/US10119854B2 ## CPC - G01G 21/286: {with windshields} - G01G: WEIGHING (sorting by weighing B07C5/16) ## Abstract A weighing chamber base (34) for a precision balance (10) has a weighing base section (98) and two side cheeks (100), which extend perpendicularly from the weighing base section, and which are arranged on opposite edges (102) of the weighing base section outside the draft shield (12). Also, a draft shield (12) that has such a weighing chamber base (34), and has at least one side panel (26), which can be moved between an open position and a closed position. The side cheeks of the weighing chamber base form a section of the side walls (22) of the draft shield (12). ## Claims ### Claim 1 A weighing chamber base for a draft shield of a precision balance, comprising: a weighing base section and two side cheeks, which both extend perpendicularly from the weighing base section, which are arranged respectively on opposite edges of the weighing base section, which are located outside of the draft shield, and which are configured as fastening devices for securing the draft shield, and forming respective jaws of a clamp; wherein the side cheeks are resiliently flexible towards and away from one another. ### Claim 2 (depends on 1) The weighing chamber base, as claimed in claim 1, wherein the weighing base section comprises a passage opening for a weighing process-specific system. ### Claim 3 (depends on 2) The weighing chamber base, as claimed in claim 2, wherein the weighing base section is raised relative to the weighing chamber base in a region of the passage opening. ### Claim 4 (depends on 1) The weighing chamber base, as claimed in claim 1, wherein an edge of the weighing base section is raised at least in sections of the edge. ### Claim 5 (depends on 1) The weighing chamber base, as claimed in claim 1, further comprising a stop face and/or a guide for a movable side panel on least one of the side cheeks. ### Claim 6 (depends on 5) The weighing chamber base, as claimed in claim 5, wherein the stop face and/or the guide is/are formed by at least sections of a surface of the side cheek that extends perpendicularly to the weighing base section. ### Claim 7 (depends on 1) The weighing chamber base, as claimed in claim 1, wherein the weighing chamber base is made of a unitary piece of plastic. ### Claim 8 (depends on 1) A draft shield for a precision balance comprising: a weighing chamber base as claimed in claim 1, at least one side panel, configured to move between an open position and a closed position, and side walls, wherein the side cheeks of the weighing chamber base form a section of the side walls of the draft shield. ### Claim 9 (depends on 8) The draft shield, as claimed in claim 8, wherein the side panel is arranged flush against a guide or a stop face, which is provided on one of the side cheeks. ### Claim 10 (depends on 8) The draft shield, as claimed in claim 8, wherein the draft shield further comprises a guide rail for the side panel, wherein the side panel is mounted with a top edge in the guide rail and with a bottom edge arranged flush against a guide or a stop face of the weighing chamber base. ### Claim 11 (depends on 10) The draft shield, as claimed in claim 10, wherein, in a plan view, the stop face or the guide projects beyond the guide rail. ### Claim 12 (depends on 1) A precision balance, comprising: a housing having side walls, and a weighing chamber base as claimed in claim 1, wherein the side cheeks of the weighing chamber base form a section of the side walls of the housing. ### Claim 13 (depends on 8) A precision balance, comprising: a housing having side walls, and a draft shield as claimed in claim 8, wherein the side cheeks of the weighing chamber base form a section of the side walls of the housing. ### Claim 14 (depends on 1) The weighing chamber base, as claimed in claim 1, wherein the side cheeks comprise mutually facing inner surfaces and wherein the fastening devices comprise projections extending along respective edges, which are distal to the weighing base section, of the inner surfaces of the side cheeks. ### Claim 15 (depends on 12) The precision balance, as claimed in claim 12, further comprising: a weighing device removably clamped between the two side cheeks of the weighing chamber base. ### Claim 16 (depends on 15) The precision balance, as claimed in claim 15, wherein the side cheeks comprise mutually facing inner surfaces and wherein the fastening devices comprise projections extending along respective edges, which are distal to the weighing base section, of the inner surfaces of the side cheeks, and wherein the weighing device comprises locking edges positioned to engage the projections when the weighing chamber base is lowered onto the weighing device into an assembled position. ### Claim 17 (depends on 13) The precision balance, as claimed in claim 13, further comprising: a weighing device removably clamped between the two side cheeks of the weighing chamber base. ### Claim 18 (depends on 17) The precision balance, as claimed in claim 17, wherein the side cheeks comprise mutually facing inner surfaces and wherein the fastening devices comprise projections extending along respective edges, which are distal to the weighing base section, of the inner surfaces of the side cheeks, and wherein the weighing device comprises locking edges positioned to engage the projections when the weighing chamber base is lowered onto the weighing device into an assembled position.