# US 10,370,887 B2 · Hidden motorized system for opening and closing a window > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,887 B2 - Document ID: US10370887B2 - Status: Granted - Kind: B2 - Application number: 15/653,330 - Filed: 2017-07-18 - Published: 2018-01-25 - Granted: 2019-08-06 - Earliest claimed: 2016-07-25 - Applicants: Rick K. Lange - Inventors: Rick K. Lange - Web page: https://patentgrep.com/patent/US10370887B2 ## CPC - E05F 15/665: for vertically-sliding wings - E05D 13/006: {fixed to the wing, i.e. safety catches} - E05D 13/1207: {with tension springs} - E05D 13/1223: {Spring safety devices} - E05F 15/77: using wireless control - E05Y 2201/422: for opening - E05Y 2201/434: Electromotors; Details thereof - E05Y 2201/716: Pinions - E05Y 2201/722: Racks - E05Y 2400/354: End positions - E05Y 2600/41: Concealed - E05Y 2600/46: in or on the wing - E05Y 2900/148: Windows - 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 - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - 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 system and method of use relating to a hidden motorized system for use in windows that can reliability and consistently open and close the window via remote operation. Specifically, a motorized system is disposed inside a window in a manner without requiring unsightly modifications to the window. The motorized system can be controlled via wireless remote or wired remote switch. The entire system fits within a conventional window, such as a single or double hung window, in a manner that is hidden from view, thereby keeping the conventional ornamental look of the window. ## Claims ### Claim 1 A motorized system for opening and closing a window, the system comprising: a motor, disposed inside a rail of a window sash of a window, comprising a drive shaft, disposed within and configured for mounting inside the rail of the window sash of the window; at least one main shaft configured for mounting inside the rail of the window sash and mechanically coupled with the drive shaft when in operable configuration; a gear disposed at a first end of the main shaft, distal from the motor; a corresponding gear receiver configured for mounting along the window channel of the window frame within which the window sash is slidably mounted, wherein the gear receiver meshes with the gear; a hidden balance system comprising a pulley and cable in combination with a tension spring, wherein when the window sash is lowered to a fully closed position, the cable is in tension and pulls on the tension spring, extending the tension spring, and wherein when the window is fully closed, the spring applies a force to the window sash via the cable, lessening a force required to move the window sash upward; wherein when mounted inside the window in operable configuration, the motor comprising the drive shaft moves the window along infinitely variable positions between open and closed. ### Claim 2 (depends on 1) The system of claim 1, wherein the window comprises a double-hung window configuration having the window sash slidably coupled with a window channel of a window frame. ### Claim 3 (depends on 1) The system of claim 1, wherein the gear comprises a race or pinion gear and the gear receiver comprises a gear rack. ### Claim 4 (depends on 1) The system of claim 1, further comprising a power source configured for mounting inside the window sash in electrical communication with the motor. ### Claim 5 (depends on 1) The system of claim 1, further comprising a wireless communication and control device operably coupled with the motor, the wireless communication and control device configured to communicate wirelessly with a remote control and control operation of the motor in accordance with wireless signals received from the remote. ### Claim 6 (depends on 5) The system of claim 5, wherein the wireless communication and control device is operable to control the direction and position of the motor comprising the drive shaft. ### Claim 7 (depends on 5) The system of claim 5, wherein the remote control comprises an application operating on a mobile device. ### Claim 8 (depends on 1) The system of claim 1, further comprising at least two limit switches configured to control an operation of the window in both the up and down positions; wherein the at least two limit switches break the forward current to the motor when a small stop block depresses at least one of the at least two limit switches. ### Claim 9 (depends on 1) The system of claim 1, wherein the motor is electrically coupled with a power source via an electrically conductive roller ball in contact with a brass strip embedded in a side of the window sash; wherein the power source electrically couples with the roller ball, which in turn makes rolling contact with the brass strip, which in turn is electrically coupled with the motor. ### Claim 10 (depends on 1) The system of claim 1, wherein the motor is coupled with a safety control configured to monitor motor activity and stop or reverse motor direction when resistance is encountered in attempting to move the window sash, wherein increased workload is sensed by the safety control, and the safety control shuts off power to the motor, thereby halting movement of the window sash whenever there is something obstructing a pathway of the window sash, providing a safety mechanism; wherein soft stop shock absorbers are disposed where contact is made when the window sash reaches a fully open position or a fully closed position, such that as the window sash approaches the fully open position or the fully closed position, the soft stop shock absorbers contact first, thus increasing workload on the motor so the safety control shuts off power to the motor; and whereby a user is enabled to manually reverse direction of the window sash, and the system then automatically resets to enable the system to be activated to move the window sash. ### Claim 11 (depends on 1) The system of claim 1, further comprising a backup battery disposed inside the sash in addition to the power source, configured to provide a redundant power source in a power failure to ensure safe operation of the system. ### Claim 12 A method, comprising: using a remote control device, sending a signal to a wireless receiver disposed in communication with a motorized system disposed and mounted inside non-glass components of a window sash, the signal indicating a command to the motorized system to move the window to a position ranging between and including fully open and fully closed positions; the motorized system receiving the signal and activating a motor to implement the received command; the window moving to the position commanded. ### Claim 13 (depends on 12) The method of claim 12, wherein the window comprises a double-hung window configuration. ### Claim 14 A double-hung window, comprising: a window sash slidably coupled with a window channel of a window frame; a motor comprising a drive shaft, wherein the motor and the drive shaft are mounted inside a rail of the window sash; a power source mounted inside the window sash in electrical communication with the motor; at least one main shaft mounted inside the rail of the window sash and mechanically coupled with the drive shaft when in operable configuration; a race or pinion gear disposed at a first end of the main shaft, distal from the motor; a gear rack mounted along the window channel of the window frame within which the window sash is slidably mounted, wherein the race or pinion gear meshes with the gear rack. ### Claim 15 (depends on 14) The window of claim 14, further comprising a backup battery disposed inside the sash in addition to the power source, configured to provide a redundant power source in a power failure to ensure safe operation of the system. ### Claim 16 (depends on 14) The window of claim 14, further comprising a wireless communication and control device operably coupled with the motor, the wireless communication and control device configured to communicate wirelessly with a remote control and control operation of the motor in accordance with wireless signals received from the remote control. ### Claim 17 (depends on 16) The window of claim 16, wherein the wireless communication and control device is operable to control the direction and position of the motor. ### Claim 18 (depends on 16) The window of claim 16, wherein the remote control comprises a dedicated hardware device. ### Claim 19 (depends on 16) The window of claim 16, wherein the remote control comprises an application operating on a mobile device. ### Claim 20 (depends on 14) The window of claim 14, wherein the motor is coupled with a safety control configured to monitor motor activity and stop or reverse motor direction when resistance is encountered in attempting to move the window sash, wherein increased workload is sensed by the safety control, and the safety control shuts off power to the motor, thereby halting movement of the window sash whenever there is something obstructing a pathway of the window sash, providing a safety mechanism; wherein soft stop shock absorbers are disposed where contact is made when the window sash reaches a fully open position or a fully closed position, such that as the window sash approaches the fully open position or the fully closed position, the soft stop shock absorbers contact first, thus increasing workload on the motor so the safety control shuts off power to the motor; and whereby a user is enabled to manually reverse direction of the window sash, and motorized system of the window comprising the motor and the safety control then automatically resets to enable the motorized system to be activated to move the window sash.