Power hand tool

Details Power hand tool Power hand tool

1975-09-02

1978-01-03

Purser, Ernest R.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

73136R, 73139, 81 524R, B25B 2314

Patent

active

040661334

ABSTRACT:
To prevent accidents due to high torque of hand tools, such as drills, and the like, which, when the tool bit stalls, may tend to twist the tool handle from the user's hand, a torque measuring element is located on the tool body at the junction of the tool body and the handle and connected to the power supply of the tool to discontinue or interrupt power supply thereto upon sensing of deformation between the tool body and the handle thereof due to excessive strain on said junction; preferably, the handle is joined to the tool body by a section of material of reduced cross-sectional size to accentuate any deformation between the tool handle and the body.

REFERENCES:
patent: 809394 (1906-01-01), Pederson
patent: 964197 (1910-07-01), Backscheidner
patent: 2431316 (1947-11-01), Dudley et al.
patent: 2793305 (1957-05-01), Gerentes
patent: 3180612 (1965-04-01), Spyridakis et al.
patent: 3858443 (1975-01-01), Roberts et al.

Affiliated with

Also associated with

Rating

Power hand tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power hand tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power hand tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-276510