US2015361700A1PendingUtilityA1

System and method for garage door counterbalance

41
Individually held — no corporate assignee on recordPriority: Jun 23, 2010Filed: Aug 4, 2015Published: Dec 17, 2015
Est. expiryJun 23, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:Paul T. KicherThomas P. Kicher
E05D 13/12B25B 27/30Y10T29/53622E05Y 2900/106E05Y 2201/499
41
PatentIndex Score
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Claims

Abstract

A tool for use in installation, adjustment and removal of an energy storage device for a counterbalance system. The tool includes a member rotatable to manipulate a spring carriage. One embodiment includes a threaded shaft, an engagement member which engages the slidable carriage, a locking nut disposed on the threaded shaft, and a bearing member disposed to the threaded shaft between the locking nut and the engagement member. A position of the slidable carriage between compressed and extended positions relative the track housing is adjustable by rotation of the threaded shaft. Another embodiment includes a frame, a cable spool rotatably attached to the frame, and having a gear attached in a co-axial arrangement to the cable spool, and a worm gear attached to the frame. The spool gear is rotatable by the worm gear to apply axial force to the slidable carriage by winding the counterbalance cable.

Claims

exact text as granted — not AI-modified
1 - 11 . (canceled) 
     
     
         12 . A tool for use in installation, adjustment and removal of an energy storage device for a counterbalance system, the system having a slidable carriage, a counterbalance cable, and a track housing, the tool comprising:
 a frame;   a cable spool rotatably attached to the frame, and having a gear attached in a co-axial arrangement to the cable spool; and   a worm gear attached to the frame and having at least one drivable end;   wherein the spool gear is rotatable by the worm gear to apply axial force to the slidable carriage by winding the counterbalance cable.   
     
     
         13 . The tool of  claim 12  wherein a position of the slidable carriage between a compressed position and an extended position relative to the track housing is adjustable by rotation of the at least one drivable end of the worm gear. 
     
     
         14 . The tool of  claim 12  wherein the frame is mountable inside the track housing. 
     
     
         15 . The tool of  claim 12  wherein the frame is mountable outside the track housing. 
     
     
         16 . The tool of  claim 12  wherein the at least one drivable end of the worm gear is drivable by a power tool. 
     
     
         17 . The tool of  claim 12  comprising a locking mechanism in engagement with the compression cable to allow rotation of the cable spool in only one direction  while the cable spool is under tension. 
     
     
         18 . The tool of  claim 12  wherein an end of the worm gear opposing the at least one drivable end of the worm gear is drivable by a power tool. 
     
     
         19 . The tool of  claim 12  wherein the tool, with the frame mounted to the track housing, permits tension testing of the compression system. 
     
     
         20 . The tool of  claim 12  wherein the tool, with the frame mounted to the track housing, allows adjustment of the compression cable tension by manipulation of the worm gear.

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