has been granted a patent for a retrofit module designed to enhance existing door closers. The module includes a motor, output shaft, and control assembly, enabling powered door opening by coupling with the door closer’s pinion, responding to an actuating signal for operation. GlobalData’s report on gives a 360-degree view of the company including its patenting strategy.
According to GlobalData鈥檚 company profile on , was a key innovation area identified from patents. 's grant share as of July 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.
Retrofit module for powered door closer operation
The patent US12071803B2 outlines a method for retrofitting existing door closers with a powered opening module. This retrofit involves the installation of a module that includes a motor, an output shaft, and a control assembly designed to facilitate the door's opening mechanism. The existing door closer consists of a closer body, a pinion that rotates in both door-closing and door-opening directions, and an armature connected to the pinion. The retrofit module is coupled to the pinion, allowing the output shaft's rotation to correspond with the pinion's movement in the door-opening direction. The installation process may also include connecting the module to line power and securing it to an adapter plate that accommodates various door closer configurations.
Additionally, the method incorporates features such as a position sensor to monitor the output shaft's rotational position, enabling the control assembly to manage the motor's operation based on the door's status. The system can respond to user inputs, including touchless actuating signals, to initiate door opening or closing. The design allows for flexibility in installation, as it includes options for selecting different pinion adapters based on the specific configuration of the existing door closer. The motor is connected to the output shaft via a clutch mechanism, ensuring that the door can close without back-driving the motor. Overall, this retrofit method enhances the functionality of traditional door closers, making them more accessible and user-friendly.
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