Pneumatic drive system

Details Pneumatic drive system Pneumatic drive system

2011-03-01

2011-03-01

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Impacting devices

Hammer head constitutes piston of drive motor

C173S047000, C173S168000

Reexamination Certificate

active

07896102

ABSTRACT:
A pneumatic drive system (1) in which the movement of an output drive unit (7) of a pneumatic drive (2) is controlled by a control valve (25and26) which is connected with the working chambers (12and13) of the pneumatic drive (2). The control valve (25and26) comprises least one air economy setting (30) setting a choke cross section and a high power setting (29) defining a flow cross section larger than it. An actuator serves to ensure that the control valve is switched over, in a fashion dependent on the air pressure obtaining in the at least one working chamber (12and13) from the normally assumed air economy setting (30) into the high power setting (29), when the output drive unit (7) meets with an increased resistance to motion.

REFERENCES:
patent: 4840236 (1989-06-01), Goldman
patent: 6334495 (2002-01-01), Deimel et al.
patent: 6557647 (2003-05-01), White
patent: 6672403 (2004-01-01), Ahr et al.
patent: 6698532 (2004-03-01), Gotou et al.
patent: 6981558 (2006-01-01), Riedl
patent: 3118764 (1983-03-01), None
patent: 0771396 (2003-07-01), None
patent: WO 02/14698 (2002-02-01), None

Affiliated with

Also associated with

Rating

Pneumatic drive system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2698397