Patent ID: 7311130

Claim:
System for controlling a motor drive of a garage door panel, comprising a single housing or constructional unit ( 12 ), a drive spindle ( 16 ) mounted within and to extend across an interior of said single housing or constructional unit ( 12 ), a series of cam wheels ( 18 ) mounted unon said drive spindle ( 16 ), a reduction gear ( 22 ) to which said drive spindle ( 16 ) is rotationally fixed within said single housing or constructional unit ( 12 ), a rough adiustment wheel ( 32 ) mounted upon each said cam wheel ( 18 ) in said series, a comb-like spring connector strip ( 34 ) suspended across an interior of said single housing or constructional unit ( 12 ), and wheels ( 36 ) to effect fine adjustment resiliently mounted upon said comb-like spring connector strip ( 34 ) suspended in said single housing or constructional unit ( 12 ) to (i) project at least partially from said single housing or constructional unit ( 12 ), (ii) be rotated in response to pressure against spring resistance of said spring connector strip ( 34 ) such that each said wheel ( 36 ) operationally or frictionally engages a corresponding cam wheel ( 18 ) of said series, and (iii) be moved along with the corresponding cam wheel ( 18 ) in the operational or frictionally engaged position with respect to said drive spindle ( 16 ), to effect fine adjustment of cam position.