Hammer drill

Details Hammer drill Hammer drill

1983-12-12

1986-02-04

Meister, James M.

Tool driving or impacting

Impacting devices

With means to cause or control advance of hammer head

173117, 173123, B25D 900

Patent

active

045679517

ABSTRACT:
In a drill hammer a motor driven striking mechanism is provided with two air cushions of changeable volumes, through which impact energy is transmitted from the motor to a reciprocating striker which in turn transmits the energy to a tool of the drill hammer. When the striker moves in the direction towards the tool both air cushions act on the striker whereas when the striker moves away from the tool only one of two air cushions acts on the striker.

REFERENCES:
patent: 3114421 (1963-12-01), McCloud
patent: 3720269 (1973-03-01), Wanner et al.
patent: 4310055 (1982-01-01), Wanner et al.
patent: 4456076 (1984-06-01), Schmid et al.

Affiliated with

Also associated with

Rating

Hammer drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2335914