Air-driven screwdriver performs hole drilling, thread...

Details Air-driven screwdriver performs hole drilling, thread... Air-driven screwdriver performs hole drilling, thread...

2007-03-06

2007-03-06

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

C173S093000, C173S176000, C173S216000

Reexamination Certificate

active

11068957

ABSTRACT:
A novel air-driven screwdriver is integrally designed to perform three functions, hole drilling, thread tapping and bolt tightening with special characteristic in which a passive inner gear assembly is employed as a driver to replace the clutch as used by the prior art. When the torque reaches at a specified level, the cam in the inner gear assembly will jump up and down, working similarly as the clutch, coupling with the torque spring and torque adjusting mechanism to control the output of the actual torque applied. This design eliminates the attachment of the clutch, shortens the overall length of tool, reduces the total weight and becomes more practical and reliable tool machine.

REFERENCES:
patent: 3578091 (1971-05-01), States
patent: 5730035 (1998-03-01), Ohmori et al.
patent: 6155139 (2000-12-01), Tanji
patent: 6223834 (2001-05-01), Takamura et al.
patent: 6505690 (2003-01-01), Tokunaga
patent: 6672404 (2004-01-01), Kamo et al.
patent: 6708778 (2004-03-01), Tokunaga
patent: 6782957 (2004-08-01), Fujiyama
patent: 6880431 (2005-04-01), Wakabayashi et al.
patent: 6942042 (2005-09-01), Lee

Affiliated with

Also associated with

Rating

Air-driven screwdriver performs hole drilling, thread... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-driven screwdriver performs hole drilling, thread..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-driven screwdriver performs hole drilling, thread... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3769199