Low cost precision linear actuator and control system

Details Low cost precision linear actuator and control system Low cost precision linear actuator and control system

2005-01-24

2008-01-22

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S015000, C310S080000

Reexamination Certificate

active

07321175

ABSTRACT:
Embodiments of the present invention relate to a linear actuator in which the play and backlash in the linear motion of a stepper motor is reduced through the use of a torsion spring coupled to the stepper motor splined shaft. Also, embodiments of the invention include a controller designed for holding in the hand or mounting to a table with a bi-directional self-zeroing control knob which controls actuator speed and displacement. A flash memory unit may be included in some embodiments in order to save position information and other information about the linear actuator when power to the linear actuator is stopped.

REFERENCES:
patent: 3479897 (1969-11-01), Holthofer
patent: 4484287 (1984-11-01), Gamo et al.
patent: 5467661 (1995-11-01), Lange
patent: 5839321 (1998-11-01), Siemons
patent: 6142032 (2000-11-01), Creager
patent: 6285151 (2001-09-01), Wright et al.
patent: 6603229 (2003-08-01), Toye, IV
patent: 6657847 (2003-12-01), Wright et al.
patent: 2007/0013326 (2007-01-01), Kling et al.
patent: 4001182 (1990-07-01), None
International Search Report/Written Opinion from the International Searching Authority/US, issued on Feb. 26, 2007, PCTUS2005/002278.
International Preliminary Report on Patentability from the International Bureau, issued on May 1, 2007, PCTUS2005/002278.

Affiliated with

Also associated with

Rating

Low cost precision linear actuator and control 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 Low cost precision linear actuator and control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low cost precision linear actuator and control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3964227