Motor-driven hammer drill

Details Motor-driven hammer drill Motor-driven hammer drill

1979-07-19

1980-09-16

Schroeder, Werner H.

Tool driving or impacting

Impacting devices

With means to cause or control advance of hammer head

173 14, B25D 926, B25D 1112

Patent

active

042224438

ABSTRACT:
In a hammer drill, a drive piston is reciprocated by a motor, and, over a pneumatic buffer, the reciprocating motion is transmitted to a percussion piston. A throttle valve regulates the flow of a fuel mixture to the motor for controlling its operation. A membrane switch connected to and operated by the pressure conditions within the pneumatic buffer controls the throttle valve.

REFERENCES:
patent: 2622399 (1952-12-01), Babitch
patent: 2748561 (1956-06-01), Goodridge
patent: 3835935 (1974-09-01), Sides et al.
patent: 3921729 (1975-11-01), Schmuck

Affiliated with

Also associated with

Rating

Motor-driven 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 Motor-driven hammer drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-driven hammer drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-535652