# US 12,110,726 B2 · Swing door operator with offset spring > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,726 B2 - Document ID: US12110726B2 - Status: Granted - Kind: B2 - Application number: 17/887,841 - Filed: 2022-08-15 - Published: 2022-12-08 - Granted: 2024-10-08 - Earliest claimed: 2020-01-24 - Assignees: Overhead Door Corporation - Applicants: Overhead Door Corporation - Inventors: Federico Romero; Viorel Hodis - Web page: https://patentgrep.com/patent/US12110726B2 ## CPC - E05F 15/63: operated by swinging arms - E05F 1/105: {with a compression spring} - E05F 15/53: for swinging wings - E05F 2015/631: {the end of the arm sliding in a track; Slider arms therefor} - E05Y 2201/10: Covers; Housings - E05Y 2201/11: Covers - E05Y 2201/499: Spring tensioners; Tension sensors - E05Y 2600/56: Positioning, e.g. re-positioning, or pre-mounting - E05Y 2800/70: Retrofitting of elements - E05Y 2900/132: Doors - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A method for replacing a spring in a swing door operator includes releasing a first end of the spring, pivoting the first end with respect to a housing about a spring mount supporting a second end of the spring, and sliding the spring away from the spring mount in a direction extending from the second end toward the first end. The housing encloses drive components of the swing door operator when in an operational configuration. ## Claims ### Claim 1 A method for replacing a spring in a swing door operator, comprising: releasing a first end of the spring; pivoting the first end with respect to a housing about a spring mount supporting a second end of the spring, wherein the housing encloses drive components of the swing door operator when in an operational configuration; and sliding the spring away from the spring mount in a direction extending from the second end toward the first end. ### Claim 2 (depends on 1) The method of claim 1, wherein a telescoping shaft extends through the spring and the sliding comprises separating a first shaft member of the telescoping shaft from a second shaft member of the telescoping shaft. ### Claim 3 (depends on 1) The method of claim 1, wherein the pivoting swings the spring away from a drive unit of the swing door operator. ### Claim 4 (depends on 1) The method of claim 1, wherein releasing the first end of the spring comprises releasing a pre-compression energy from the spring. ### Claim 5 (depends on 1) The method of claim 1, wherein pivoting the first end about the spring mount comprises rotating the spring about a pin, an axle, or a bearing secured to the spring mount. ### Claim 6 (depends on 5) The method of claim 5, wherein the spring mount is secured to a lever arm by the pin, the axle, or the bearing. ### Claim 7 (depends on 1) The method of claim 1, further comprising: opening a housing cover of the swing door operator prior to pivoting the first end of the spring. ### Claim 8 (depends on 1) The method of claim 1, wherein the spring is configured to store potential energy during opening of a door and release the potential energy to close the door. ### Claim 9 A method for replacing a spring in a swing door operator, comprising: releasing a first end of the spring, wherein the releasing comprises retracting a fastener through a bracket and away from the spring, the fastener being engaged with a mounting plate affixed to the first end of the spring prior to the retracting; pivoting the first end about a spring mount supporting a second end of the spring; and sliding the spring away from the spring mount in a direction extending from the second end toward the first end. ### Claim 10 (depends on 9) The method of claim 9, further comprising: engaging a second end of a second spring with the spring mount; pivoting a first end of the second spring about the spring mount; and securing the first end of the second spring to the bracket. ### Claim 11 (depends on 10) The method of claim 10, wherein the second spring has a spring constant that is different than a spring constant of the spring. ### Claim 12 (depends on 10) The method of claim 10, further comprising: advancing a fastener into engagement with a mounting plate affixed to the first end of the second spring. ### Claim 13 (depends on 12) The method of claim 12, wherein advancing the fastener compresses the second spring to a pre-compressed state. ### Claim 14 (depends on 13) The method of claim 13, wherein the mounting plate comprises a recess and advancing the fastener includes seating an end of the fastener in the recess. ### Claim 15 (depends on 10) The method of claim 10, further comprising: assembling a first shaft member of a telescoping shaft with a second shaft member of the telescoping shaft, wherein the telescoping shaft extends through the second spring. ### Claim 16 (depends on 10) The method of claim 10, wherein the second spring has a length in a relaxed configuration that is different than a length of the spring in a relaxed configuration. ### Claim 17 (depends on 10) The method of claim 10, wherein the second spring has a coil spacing in a relaxed configuration that is different than a coil spacing of the spring in a relaxed configuration. ### Claim 18 (depends on 10) The method of claim 10, further comprising: operating a powered driver to pivot a lever arm supporting the spring mount and compress the second spring. ### Claim 19 A method for replacing a spring in a swing door operator, comprising: releasing a first end of the spring, wherein the releasing comprises retracting a fastener away from the spring to allow a mounting plate affixed to the first end of the spring to become seated within a recess having an inner wall shaped and sized to laterally constrain the mounting plate with respect to a longitudinal axis of the spring; pivoting the first end about a spring mount supporting a second end of the spring; and sliding the spring away from the spring mount in a direction extending from the second end toward the first end. ### Claim 20 (depends on 19) The method of claim 19, further comprising: manually compressing the spring to remove the mounting plate from the recess before pivoting the first end about the spring mount.