US2012060703A1PendingUtilityA1

Band clamp tensioning tool

23
Individually held — no corporate assignee on recordPriority: Sep 14, 2010Filed: Sep 14, 2011Published: Mar 15, 2012
Est. expirySep 14, 2030(~4.1 yrs left)· nominal 20-yr term from priority
Inventors:Stevan P. StiefvaterGrant H. Shafer
F16L 3/233B25B 25/00B25B 25/005
23
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A system for protecting tubes in a heat recovery system is provided. Such tubes are often protected by shielding that is attached thereto the tubes by a plurality of band clamps. Each band clamp is associated with a guard that protects the same from the hot gases traveling through the field of tubes. In addition, an automated tool is provided for tensioning the bands about the shields. The automated tool allows the band clamps to be properly interconnected to the shields in a preferred manner.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A band tensioning and cutting tool, comprising:
 a power source for providing rotational movement to a shaft;   a gear box mechanically associated with said shaft;   a rotating mandrel associated with said gear box wherein rotation of said shaft will rotate said mandrel, said mandrel adapted to receive a band and tension the same, said gear box having a means for preventing over tensioning the band; and   a cutting mechanism positioned adjacent to said mandrel, said cutting mechanism also adapted to receive a portion of the band.   
     
     
         2 . The tool of  claim 1 , wherein said power source is at least one battery. 
     
     
         3 . The tool of  claim 1 , wherein said gear box comprises a planetary gear system wherein said shaft is interconnected to a sun gear of the planetary gear system and the mandrel is associated with the planetary gears. 
     
     
         4 . The tool of  claim 1 , wherein said cutting mechanism is adapted to receive a band in a direction parallel to the longitudinal axis of said mandrel and in a direction perpendicular to said longitudinal axis of said mandrel. 
     
     
         5 . The tool of  claim 1 , wherein said mandrel includes a first slot and a second slot adapted for receiving the band. 
     
     
         6 . The tool of  claim 1 , wherein said tool has an outside lateral dimension of less than about 8 inches. 
     
     
         7 . The tool of  claim 1 , wherein said shaft produces about 250 in lbs. of torque which is increased to 1,800 to 3,000 in lbs. by said gear box. 
     
     
         8 . The tool of  claim 1 , wherein said shaft and power source are incorporated into a drill. 
     
     
         9 . The tool of  claim 1 , wherein said cutting mechanism comprises a blade and a shear plate that are brought together to sever the band. 
     
     
         10 . The tool of  claim 1 , wherein said cutting mechanism is automatically actuated when the band reaches a predetermined amount of tension. 
     
     
         11 . The tool of  claim 1 , wherein said gear box includes a slip clutch that disengages the mandrel from said shaft when the band is tensioned to a predetermined amount. 
     
     
         12 . The tool of  claim 11 , wherein said slip clutch emits an audio signal when the band is tensioned to a predetermined amount. 
     
     
         13 . A band tensioning and cutting tool, comprising:
 a drill having a rotating shaft;   a gear box interconnected to said drill with an adapter, said gear box operatively associated with a winding mandrel such that rotation of said shaft rotates said mandrel, and a clutch that prevents over tensioning the band; and   a cutting mechanism positioned adjacent to said mandrel, said cutting mechanism also adapted to receive a portion of the band.   
     
     
         14 . The tool of  claim 13 , wherein said drill is powered with at least one battery. 
     
     
         15 . The tool of  claim 13 , wherein said gear box comprises a planetary gear system wherein said shaft is interconnected to a sun gear of the planetary gear system and the mandrel is associated with the planetary gears. 
     
     
         16 . The tool of  claim 13 , wherein said cutting mechanism is adapted to receive a band in a direction parallel to the longitudinal axis of said mandrel and in a direction perpendicular to said longitudinal axis of said mandrel. 
     
     
         17 . The tool of  claim 13 , wherein said mandrel includes a first slot and a second slot adapted for receiving the band. 
     
     
         18 . The tool of  claim 13 , wherein said tool has an outside lateral dimension of less than about 8 inches. 
     
     
         19 . The tool of  claim 13 , wherein said shaft produces about 250 in lbs. of torque which is increased to 1,800 to 3,000 in lbs. by said gear box. 
     
     
         20 . The tool of  claim 13 , wherein said cutting mechanism comprises a blade and a shear plate that are brought together to sever the band. 
     
     
         21 . The tool of  claim 13 , wherein said cutting mechanism is automatically actuated when the band reaches a predetermined amount of tension. 
     
     
         22 . The tool of  claim 13 , wherein said gear box includes a slip clutch that disengages the mandrel from said shaft when the band is tensioned to a predetermined amount. 
     
     
         23 . The tool of  claim 22 , wherein said slip clutch emits an audio signal when the band is tensioned to a predetermined amount.

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