公开(公告)号：US20180100341A1

公开(公告)日：2018-04-12

申请号：US15730549

申请日：2017-10-11

Applicant: Upwardor Inc.

Inventor： Ryan Green

IPC: E05F15/40 ,  E05F15/59

CPC classification number: E05F15/40 ,  E05D13/1261 ,  E05F15/59 ,  E05Y2201/656 ,  E05Y2201/71 ,  E05Y2400/32 ,  E05Y2400/337 ,  E05Y2400/44 ,  E05Y2900/106

Abstract: A garage door position sensing system and devices includes an encoder assembly installed on a movable barrier door drive assembly, wherein the shaft associated with the barrier door drive assembly is positioned through a shaft interfacing portion of the encoder assembly and the shaft is operatively connected to the toothed pulley of the encoder assembly. A quadrature sensor is mounted within the encoder assembly, such that the sensing head of the sensor is fixed at a pre-determined distance from the teeth of the pulley. When the door moves from an open position to a closed position, and vice-versa, the pulley is rotated accordingly in response to the application of upward or downward forces on the shaft. The encoder assembly can be installed on any existing moveable barrier door and functions as a pneumatic door operator for sensing the position of travel without the need to use any mechanical switches.