Garage door operator

Details Garage door operator Garage door operator

1994-08-24

1996-12-31

Dorner, Kenneth J.

Movable or removable closures

Up-and-over type; e.g., moves from vertical to withdrawn...

With operator

E05F 1100

Patent

active

055882579

ABSTRACT:
A door operator for garage doors is provided which includes a motor, a multiple segmented drive screw and a traveler coupled to and reciprocating along the multiple segmented drive screw. The drive screw segments have non-circular ends which are slidably coupled to each other through a complementary sleeve. Springs are used to bias the screw segments toward one another. The traveler includes a lubricating pad for lubricating the drive screw as it passes along.

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U.S. Pat. Application Ser. No. 08/133,224, filed Oct. 7, 1993, entitled "Door Opener." (Notice of Allowance dated Nov. 28, 1994, Batch G62).

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