# US 2014/0150518 A1 · Method and apparatus for calibrating a dispenser > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150518 A1 - Document ID: US20140150518A1 - Status: Published application - Kind: A1 - Application number: 13/692,057 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Illinois Tool Works Inc. - Applicants: Illinois Tool Works Inc. - Inventors: Jonathan Joel Bloom; Thomas J. Karlinski; Traci Anne Shultz - Web page: https://patentgrep.com/patent/US20140150518A1 ## CPC - G01G 23/01: Testing or calibrating of weighing apparatus - H05K 13/0469: {by applying a glue or viscous material} - H05K 13/089: {Calibration, teaching or correction of mechanical systems, e.g. of the mounting head} - G01G: WEIGHING (sorting by weighing B07C5/16) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A method of calibrating a dispenser of the type having a material dispensing unit that is configured to dispense material on a substrate includes providing a weigh scale having a plate configured to receive material dispensed on the plate, dispensing one or more patterns of material on the plate; weighing the amount of material dispensed on the plate, and comparing the weighed amount of material to a designated amount of material. The act of dispensing one or more patterns of material replicates at least a portion of patterns of material dispensed on the substrate during a dispensing operation. A controller for performing the method is further disclosed. ## Claims ### Claim 1 A method of calibrating a dispenser of the type having a material dispensing unit that is configured to dispense material on a substrate, the method comprising: providing a weigh scale having a plate configured to receive material dispensed on the plate; dispensing one or more patterns of material on the plate; weighing the amount of material dispensed on the plate; and comparing the weighed amount of material to a designated amount of material, wherein dispensing one or more patterns of material replicates at least a portion of patterns of material dispensed on the substrate during a dispensing operation. ### Claim 2 (depends on 1) The method of claim 1, wherein comparing the weighed amount of material to the designated amount of material includes determining whether the weighed amount of material is within a predetermined tolerance. ### Claim 3 (depends on 2) The method of claim 2, wherein if the weighed amount of material is outside the predetermined tolerance, further comprising repeating dispensing, weighing and comparing until the weighed amount is within the predetermined tolerance. ### Claim 4 (depends on 2) The method of claim 2, further comprising adjusting a parameter of the dispenser to vary an amount of material dispensed in the event the weighed amount is outside the predetermined tolerance. ### Claim 5 (depends on 4) The method of claim 4, wherein adjusting the parameter of the dispenser includes adjusting a speed of the gantry. ### Claim 6 (depends on 4) The method of claim 4, wherein adjusting the parameter of the dispenser includes adjusting a rotation of an auger screw of the dispensing unit or by adjusting a shot size of the dispensing unit. ### Claim 7 (depends on 1) The method of claim 1, further comprising displaying the weight of the pattern dispensed to a user using a user interface device. ### Claim 8 (depends on 7) The method of claim 7, wherein the user interface device includes a display coupled to a dispenser controller. ### Claim 9 (depends on 1) The method of claim 1, wherein the dispensing unit is an auger-type dispenser. ### Claim 10 (depends on 1) The method of claim 1, wherein the dispensing unit is a jetter-type dispenser. ### Claim 11 A controller coupled to a dispenser of the type having a material dispensing unit that is configured to dispense material on a substrate, the controller comprising: a calibration component configured to perform acts of dispensing one or more patterns of material on a plate of a weigh scale of the dispenser, weighing the amount of material dispensed on the plate, and comparing the weighed amount of material to a designated amount of material, wherein dispensing one or more patterns of material replicates at least a portion of patterns of material dispensed on the substrate during a dispensing operation. ### Claim 12 (depends on 11) The controller of claim 11, wherein comparing the weighed amount of material to the designated amount of material includes determining whether the weighed amount of material is within a predetermined tolerance. ### Claim 13 (depends on 12) The controller of claim 12, wherein if the weighed amount of material is outside the predetermined tolerance, further comprising repeating dispensing, weighing and comparing until the weighed amount is within the predetermined tolerance. ### Claim 14 (depends on 12) The controller of claim 12, further comprising adjusting a parameter of the dispenser to vary an amount of material dispensed in the event the weighed amount is outside the predetermined tolerance. ### Claim 15 (depends on 14) The controller of claim 14, wherein adjusting the parameter of the dispenser includes adjusting a speed of the gantry. ### Claim 16 (depends on 14) The controller of claim 14, wherein adjusting the parameter of the dispenser includes adjusting a rotation of an auger screw of the dispensing unit or by adjusting a shot size of the dispensing unit. ### Claim 17 (depends on 11) The controller of claim 11, further comprising displaying the weight of the pattern dispensed to a user using a user interface device. ### Claim 18 (depends on 17) The controller of claim 17, wherein the user interface device includes a display coupled to the controller. ### Claim 19 (depends on 11) The controller of claim 11, wherein the dispensing unit is an auger-type dispenser. ### Claim 20 (depends on 1) The controller of claim 1, wherein the dispensing unit is a fetter-type dispenser.