Monitoring apparatus for monitoring electrical drive current...

Details Monitoring apparatus for monitoring electrical drive current... Monitoring apparatus for monitoring electrical drive current...

2006-02-28

2006-02-28

Patel, Paresh (Department: 2829)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S1540PB, C324S537000

Reexamination Certificate

active

07005884

ABSTRACT:
Monitoring apparatus is for monitoring a parameter, such as a drive current to a motor. Motor current flows through a series resistor which provides a voltage signal which varies in response to variations in the motor current. An analysis circuit is operable to analyze the rate of change of the voltage and to provide an alarm signal in the event that the rate of change continues in excess of predetermined rate for a period in excess of a predetermined time. The alarm signal could, for example, be used to indicate that an automatic door being driven by the motor has been blocked by a person or object which could be injured or damaged.

REFERENCES:
patent: 5018041 (1991-05-01), Szepesi
patent: 5115188 (1992-05-01), Norton
patent: 5374857 (1994-12-01), Carobolante
patent: 5599301 (1997-02-01), Jacobs et al.
patent: 5663620 (1997-09-01), Mizuno et al.
patent: 5774323 (1998-06-01), Innes et al.
patent: 100 28 445 (2001-12-01), None

Affiliated with

Also associated with

Rating

Monitoring apparatus for monitoring electrical drive current... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring apparatus for monitoring electrical drive current..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring apparatus for monitoring electrical drive current... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3678406