RTX has been granted a patent for a system that controls the movement of elevator doors. The system includes a panel that forms the exterior surface of the door, with a resilient portion that engages a sensor when the door is closing. The controller monitors the sensor and reopens the door if deflection is detected. The sensor is located within a cavity in the door panel. GlobalData’s report on RTX gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on RTX, photovoltaic drones was a key innovation area identified from patents. RTX's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
System for controlling elevator door opening and closing
A recently granted patent (Publication Number: US11685635B2) describes a system for an elevator door that includes a controller to control the movement of the door. The system comprises a panel that forms the exterior surface of the elevator door. The panel has a front surface, a proximate end surface, and a distal end surface. The proximate end surface includes a resilient portion.
When the elevator door is closing, the controller monitors for a communication from a sensor located in a cavity within the door panel. This communication indicates that the resilient portion of the panel is deflecting in the distal direction. Upon detecting this deflection, the controller reopens the elevator door. The sensor is entirely located within the cavity, which is defined by the front surface, proximate end surface, a first return surface, and a first internal surface of the panel.
The resilient portion of the panel extends into the cavity through the proximate end surface to communicate with the controller. The proximate end of the panel includes a proximate J-channel formed by the front surface, the first internal surface of the cavity, and a distal portion of the first return surface. The distal end of the panel includes a distal end J-channel formed by the front surface, a distal end surface of the panel, and a second return surface of the panel.
The patent also describes a method for an elevator controller to control the elevator door while it is closing. The method includes monitoring for a communication from a sensor in the door panel indicating deflection of the resilient portion in the distal direction. Upon detecting this deflection, the controller reopens the elevator door by transmitting instructions to the elevator. The sensor is located within the cavity in the door panel, and the resilient portion extends into the cavity through the proximate end surface of the panel.
Overall, this patent describes a system and method for controlling an elevator door using a resilient portion in the door panel and a sensor located within a cavity in the panel. The system allows for the detection of deflection in the door panel and the reopening of the elevator door to ensure safe operation.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
