Patent ID: 8561348

Claim:
A security kit for a garage door operator comprising a reversible electric motor operable to open and close a garage door along a path, a wall switch connected to said electric motor with a pair of conductors for operating said electric motor, and safety apparatus for preventing said garage door from closing on an obstruction in the path of said garage door when said garage door is closing, said security kit comprising: a replacement wall switch for operating said electric motor, said replacement wall switch comprising: a housing, a first normally open switch carried by said housing and connected to said pair of conductors; a timer disposed within said housing; a second switch disposed within said housing and connected in parallel with said first switch, said second switch being operable by said timer to provide a momentary closure between said pair of conductors, said timer comprising a timer input; a sensor disposed to detect that said garage door is open or closed, said sensor coupled to said timer input; said sensor and said timer cooperatively operable such that when said sensor detects that said garage door is closed, said timer is reset and disabled, and operable such that when said sensor detects that said garage door is open, said timer initiates timing a predetermined time period, said timer operating said second switch at the end of said predetermined time period; and said sensor comprises a transmitter, said transmitter being operable to generate a door open signal when said garage door is open; and said housing comprising a receiver responsive to said door open signal to initiate operation of said timer.