# US 11,905,740 B2 · Deadbolt assembly for simultaneously securing co-mounted doors together and actuating at least one deadbolt > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,905,740 B2 - Document ID: US11905740B2 - Status: Granted - Kind: B2 - Application number: 17/061,169 - Filed: 2020-10-01 - Published: 2022-03-17 - Granted: 2024-02-20 - Earliest claimed: 2019-10-01 - Assignees: Larson Manufacturing Company of South Dakota, Inc. - Applicants: Larson Manufacturing Company of South Dakota, Inc. - Inventors: Michael W. Kondratuk; Alan M. Dixon; Kole Kramer; Sara Wermers; Todd N. Stratmoen; Luke A. Thompson; Bryan P. Zacher; Jammey A. Rawden - Web page: https://patentgrep.com/patent/US11905740B2 ## CPC - E05B 63/143: {Arrangement of several locks, e.g. in parallel or series, on one or more wings} - E05B 55/005: {Cylindrical or tubular locks} - E05B 63/0017: {Locks with sliding bolt without provision for latching} - E05B 63/0065: {Operating modes; Transformable to different operating modes} - E05C 7/02: for wings which lie one behind the other when closed {(E05C7/002 takes precedence)} - E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS - E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F) ## Abstract A deadbolt assembly for securing co-mounted doors together and activating at least one deadbolt may include at least a first retention component and a first actuator interface mounted to or defined by a first coupling assembly of a key-side assembly operatively mounted to one of the co-mounted doors, and at least a second retention component and a second actuator interface mounted to or defined by a second coupling assembly of a lever-side assembly operatively mounted to the other of the co-mounted doors, at least one of the key-side assembly and the lever-side assembly including a deadbolt assembly having a deadbolt configured to be responsive to actuation thereof to extend a deadbolt therefrom, wherein actuation of the deadbolt assembly also causes the first and second retention components to secure the first and second coupling assemblies to one another. ## Claims ### Claim 1 A deadbolt assembly for securing co-mounted doors together and activating at least one deadbolt, the assembly comprising: a first-side assembly to be mounted to a first door of the co-mounted doors, the first-side assembly including a first coupling assembly to be mounted to a side of the first door facing a second door of the co-mounted doors, the first coupling assembly including a first rotatable component that is rotatable about an axis of rotation and a first retention component; a second-side assembly to be mounted to the second door including a second coupling assembly to be mounted to the second door facing the first coupling assembly so as to interact with one another upon bringing the first and second coupling assemblies toward and proximate to one another, the second coupling assembly including a second rotatable component that is rotatable about the axis of rotation and a second retention component; at least one of the first-side assembly and the second-side assembly further including the deadbolt that is operatively connected with at least one of the first and second rotatable components such that rotation of the first or second rotatable component can extend and retract a deadbolt, wherein the first and second rotatable components are operatively connectable with one another and the first and second retention components create an interference in an axial direction of the axis of rotation of the first and second rotatable components upon bringing the first and second coupling assemblies proximate to one another along with rotation of at least one of the first and second rotatable components so as to restrict movement of the first and second coupling assemblies away from one another while the interference is created. ### Claim 2 (depends on 1) The deadbolt assembly of claim 1, wherein rotation of at least one of the first and second rotatable components causes at least one of a rotation of at least one of the first and second retention components, an axial movement of at least one of the first and second retention components, and a radial movement of at least one of the first and second retention components. ### Claim 3 (depends on 2) The deadbolt assembly of claim 2, wherein movement of at least one of the first and second retention components causes an engagement with the other of the first and second retention components to create the interference in the axial direction. ### Claim 4 (depends on 1) The deadbolt assembly of claim 1, wherein a first actuator interface is provided at an end of the first rotatable component and a second actuator interface is provided at an end of the second rotatable component, and the first and second interfaces are positioned to each other so that they will engage with one another in a manner to translate rotary motion between the first and second rotatable components. ### Claim 5 (depends on 4) The deadbolt assembly of claim 4, wherein the first-side assembly comprises an entry control device to be located on the outside of the first door that is operatively connected with the first rotatable component. ### Claim 6 (depends on 5) The deadbolt assembly of claim 5, further comprising a clutch device operatively located between a key cylinder and the first actuator interface that allows a range of rotary motion under predetermined circumstances during which the key cylinder rotates relative to the first interface actuator. ### Claim 7 (depends on 4) The deadbolt assembly of claim 4, wherein at least one of the first and second retention components comprises a rotatable retention component that is operatively connected with both the first and second rotatable components so that the rotatable retention component can be driven from either of the first and second rotatable components, and wherein the other of the first and second retention components comprises a feature fixed in position relative to a respective one of the first and second coupling assemblies of the other of the first and second retention components to be engaged by rotation of the rotatable retention component to create the interference in the axial direction. ### Claim 8 (depends on 7) The deadbolt assembly of claim 7, wherein the rotatable retention component comprises a retention arm or tab that extends radially to swing as the rotatable retention component is rotated to engage with the fixed feature of the other retention component. ### Claim 9 (depends on 8) The deadbolt assembly of claim 8, wherein the fixed feature comprises at least one wall portion connected with the respective other coupling assembly for defining an edge, and the retention tab can be rotated from a position beside the edge and to a position behind the wall portion inside of the edge to create the interference. ### Claim 10 (depends on 7) The deadbolt assembly of claim 7, wherein the rotatable retention component includes a retention tab that includes plural portions that extend radially to swing as the rotatable retention component is rotated to engage with the fixed feature of the other retention component. ### Claim 11 (depends on 10) The deadbolt assembly of claim 10, wherein plural fixed features are provided as plural wall portions connected with the respective other coupling assembly for defining plural edges that are positioned so that the plural portions of the tab can each be rotated from a position beside an edge of one wall portion to a position behind one wall portion to create the interference. ### Claim 12 (depends on 4) The deadbolt assembly of claim 4, wherein at least one of the first and second retention components comprises a rotatable retention component that is operatively connected with both the first and second rotatable components so that the rotatable retention component can be driven from either of the first and second rotatable components, and wherein the rotatable retention component includes a radially varying portion to rotate therewith that is in engagement with a radially sliding element of one of the first and second coupling assemblies to move the sliding element radially by rotation of the radially varying portion to a position of interference with a structural feature of the other of the first and second coupling assemblies to provide an axial interference of the first and second retention components. ### Claim 13 (depends on 12) The deadbolt assembly of claim 12, wherein the radially varying portion is operatively supported to the same coupling assembly as the structural feature and the radially sliding element is supported to the other coupling assembly. ### Claim 14 (depends on 12) The deadbolt assembly of claim 12, wherein the radially varying portion is operatively supported to the same coupling assembly as the sliding element and the structural feature is supported to the other coupling assembly. ### Claim 15 (depends on 12) The deadbolt assembly of claim 12, wherein the rotatable retention component includes plural radially varying elements and plural sliding elements so that rotation of the rotatable retention component moves plural pins at the same time to provide an axial interference of the first and second retention components. ### Claim 16 (depends on 4) The deadbolt assembly of claim 4, wherein one actuator interface of the first and second actuator interfaces includes a pin offset from the axis of rotation thereof and the other actuator interface of the first and second actuator interfaces cooperates with the one actuator interface for supporting a radially extending component rotatable relative to the other actuator interface that includes a portion operatively to be movable along with the pin upon rotation of the one actuator interface for rotating the radially extending component to create an axial interference of the first and second retention components. ### Claim 17 (depends on 16) The deadbolt assembly of claim 16, wherein the pin is positioned relative to the radially extending component so that the pin engages with an edge of the radially extending component after a predetermined angle of rotation of the pin relative to the radially extending component. ### Claim 18 (depends on 16) The deadbolt assembly of claim 16, wherein the pin rotates the radially extending component into a position behind a structural feature of one of the first and second coupling assemblies to provide the axial interference. ### Claim 19 (depends on 18) The deadbolt assembly of claim 18, wherein the pin rotates the radially extending component into a position within a slot of one of the first and second coupling assemblies. ### Claim 20 (depends on 16) The deadbolt assembly of claim 16, wherein the radially extending component when rotated causes a rotation of an axially extending component having a tab that when rotated can be positioned behind a structural element of a respective one of the first and second coupling assemblies provided about the one actuator interface. ### Claim 21 (depends on 16) The deadbolt assembly of claim 16, wherein the radially extending component includes an axially extending element radially offset from the other actuator interface that when rotated can be moved within a shaped slot of the respective one of the first and second coupling assemblies provided about the other actuator interface from a wide portion of the shaped slot providing a non-interference position to a narrow portion of the shaped slope providing an interference position. ### Claim 22 (depends on 4) The deadbolt assembly of claim 4, wherein one retention component of the first and second retention components comprises an actuator portion of one of the first and second rotatable components providing at least a partially circumferentially extending groove and an axial slot from an end of the actuator portion to the groove that can be aligned with a radially extending tab of the other retention component of the first and second retention components that is fixed in position relative to one of the first and second coupling assemblies, so that when in alignment, the tab can be axially moved along the axial slot to a position within the groove and thereafter rotated within the groove so that at least a portion of the tab can be positioned in an axial interference position. ### Claim 23 (depends on 22) The deadbolt assembly of claim 22, wherein the actuator portion is provided at one actuator interface of the first and second actuator interfaces. ### Claim 24 (depends on 23) The deadbolt assembly of claim 23, further comprising a plurality of axial slots leading to the groove of the actuator portion that can be aligned with a similar plurality of tabs of the other retention component of the first and second retention components. ### Claim 25 (depends on 23) The deadbolt assembly of claim 23, wherein the actuator portion includes an axial opening extending from the end of the axial portion to an extent within the actuator portion for receiving the other actuator interface of the first and second actuator interfaces so that the first and second rotatable components can be rotated together when in engagement. ### Claim 26 (depends on 25) The deadbolt assembly of claim 25, wherein the transverse shape of the axial opening provides for limited range of rotational movement of the other actuator interface relative to the one actuator interface. ### Claim 27 (depends on 26) The deadbolt assembly of claim 26, wherein the other actuator interface comprises a flat extension that can be received by the axial opening having a radial portion within which the flat extension can rotate without rotating the one actuator interface over the limited range, after which the flat extension will contact an axial edge defining the radial portion of the axial opening so that continued rotation of the flat extension rotates the one actuator interface along with the other actuator interface. ### Claim 28 (depends on 25) The deadbolt assembly of claim 25, wherein the one actuator interface is tapered in the axial extension thereof to facilitate alignment of the one actuator interface to the other actuator interface. ### Claim 29 (depends on 28) The deadbolt assembly of claim 28, wherein the tab of the other retention component is provided as extending radially inward from an opening provided through a coupling component of one of the first and second coupling assemblies. ### Claim 30 (depends on 29) The deadbolt assembly of claim 29, wherein the coupling component includes a portion that is tapered in the axial direction similarly to the taper of the one actuator interface to further facilitate alignment of the one actuator interface to the other actuator interface. ### Claim 31 (depends on 30) The deadbolt assembly of claim 30, wherein one of the tab and groove is sloped so as to create a camming action between the tab and the groove during relative rotation, which camming action causes the first and second coupling assemblies to move relatively to one another in the axial direction during relative rotation between the tab and groove. ### Claim 32 (depends on 4) The deadbolt assembly of claim 4, wherein the first rotatable component comprises a first spindle and the second rotatable component comprises a second spindle. ### Claim 33 (depends on 4) The deadbolt assembly of claim 4, wherein the first actuator interface comprises a key extension having features to act as a key and the second actuator interface comprises a key cylinder for receiving the key extension so that depending on the rotational orientation of the key extension and the key cylinder, the first and second actuator interfaces can be locked together to provide an axial interference an of the first and second rotatable components. ### Claim 34 (depends on 1) The deadbolt assembly of claim 1, wherein the second-side assembly comprises a user interface rotatable component for manipulation by a user and that is operatively rotatable with the second rotatable component. ### Claim 35 (depends on 34) The deadbolt assembly of claim 34, further comprising a clutch device operatively located between the user interface rotatable component and the second actuator interface that allows a range of rotary motion under predetermined circumstances during which the user interface rotatable component rotates relative to the second interface actuator. ### Claim 36 A door assembly for selectively interlocking first and second co-mounted doors each pivotably mounted at a hinge side thereof to a door frame so as to both open and close in the same rotary direction, the door assembly comprising: a door jamb, the door jamb including a hinge-side jamb spaced apart from a latch-side jamb; the first door, the first door having a hinge side and a latch side opposite the hinge side thereof; the second door, the second door having a hinge side and a latch side opposite the hinge side thereof, the hinge sides of the first and second doors both pivotably mounted to the hinge-side jamb such that the first and second doors pivot individually or together in the same rotary direction relative to the hinge-side jamb between open and closed positions; and a deadbolt assembly for securing the first and second co-mounted doors together and activating at least one deadbolt, the assembly comprising: a first-side assembly to be mounted to the first door of the co-mounted doors, the first-side assembly including a first coupling assembly to be mounted to a side of the first door facing the second door of the co-mounted doors, the first coupling assembly including a first rotatable component that is rotatable about an axis of rotation and a first retention component; a second-side assembly to be mounted to the second door including a second coupling assembly to be mounted to the second door facing the first coupling assembly so as to interact with one another upon bringing the first and second coupling assemblies toward and proximate to one another, the second coupling assembly including a second rotatable component that is rotatable about the axis of rotation and a second retention component; at least one of the first-side assembly and the second-side assembly further including the deadbolt that is operatively connected with at least one of the first and second rotatable components such that rotation of the first or second rotatable component can extend and retract a deadbolt, wherein the first and second rotatable components are operatively connectable with one another and the first and second retention components create an interference in an axial direction of the axis of rotation of the first and second rotatable components upon bringing the first and second coupling assemblies proximate to one another along with rotation of at least one of the first and second rotatable components so as to restrict movement of the first and second coupling assemblies away from one another while the interference is created.