Servo cylinder apparatus

Details Servo cylinder apparatus Servo cylinder apparatus

1994-10-12

1997-03-25

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 77, 310 15, 74625, 60545, 91 44, 91 59, H02K 706

Patent

active

056147783

ABSTRACT:
Compressed air is introduced into a cylinder chamber to displace a piston closely to a target position. Then, a ball screw shaft is rotated about its own axis by an electric motor to inch the piston to the target position. Upon arrival of the piston at the target position, the ball screw shaft is stopped by a brake mechanism to hold the piston accurately in the target position. The drive shaft of the electric motor extends parallel to the ball screw shaft, thus reducing the entire length of a servo cylinder apparatus. Solenoid-operated directional control valves, for supplying compressed air to the cylinder chamber and the brake mechanism are coupled integrally to a cylinder assembly, so that pipes are shortened for allowing the piston to be displaced and stopped quickly and accurately.

REFERENCES:
patent: 3251249 (1966-05-01), Carlstedt
patent: 3628397 (1971-12-01), Sheesley
patent: 4088087 (1978-05-01), Nitta
patent: 4137784 (1979-02-01), Griffin
patent: 4444540 (1984-04-01), Blatt et al.
patent: 4449442 (1984-05-01), Ebbing et al.
patent: 4509904 (1985-04-01), MacAskill et al.
patent: 4517853 (1985-05-01), Tani et al.
patent: 4918921 (1990-04-01), Leigh-Monstevens et al.
patent: 5105719 (1992-04-01), Yoshikawa
patent: 5193408 (1993-03-01), Fukui et al.
patent: 5261810 (1993-11-01), Kamp et al.
patent: 5310138 (1994-05-01), Fitzgibbon
patent: 5322430 (1994-06-01), Kasai et al.
patent: 5326257 (1993-08-01), Monzaki et al.
Patent Abstracts of Japan, vol. 10, No. 105 (M-471)(2162), Apr. 19, 1986, JP-A-60 237 202, Nov. 26, 1985.
Patent Abstracts of Japan, vol. 15, No. 190 (M-113), May 16, 1991, JP-A-03 048 002, Mar. 1, 1991.
Patent Abstracts of Japan, vol. 9, No. 191 (M-402)(1914), Aug. 7, 1985, JP-A-60 057 001, Apr. 2, 1985.
Patent Abstracts of Japan, vol. 14, No. 101 (P-1012)(4044), Feb. 23, 1990, JP-A-01 305 405, Dec. 8, 1989.

Affiliated with

Also associated with

Rating

Servo cylinder apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2205913