Patent ID: 7373756
Filing Date: 2008-05-20
Classification: E05F,E05Y

Abstract:
1. An automatic portable door operating system for controlling the movement of a door, said system comprising: a housing; an arm extending from said housing having a free end for contacting a door for opening and releasing of said door, said arm being independent of said door; a worm gear linked with a sectored gear positioned within said housing, said sectored gear connected to said arm at an end other than said free end for imparting movement to said arm, said sectored gear connected at a second point to said arm by a suspension system; said suspension system connected between said arm and said sectored gear for dampening load experienced by operating said system when said arm contacts a door, said suspension system including spring means connected between said arm and said sectored gear; a motor connected to said worm gear for providing movement to said sectored gear; sensor means for actuating said system; a power supply for supplying power to said motor; and control means for controlling said motor.