Apparatus for limiting control of electrical equipment

Details Apparatus for limiting control of electrical equipment Apparatus for limiting control of electrical equipment

1994-07-29

1996-10-08

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

H04Q 100

Patent

active

055635865

ABSTRACT:
An apparatus or system for limiting access to control of electrically operated equipment. In order to access control of the equipment, i.e., to activate or deactivate the equipment, an operator must enter an access code for example by working a predetermined number of switches or code. An additional feature of the system includes a dwell time function to allow access to control the equipment for a limited time after deactivation.

REFERENCES:
patent: 3953769 (1976-04-01), Sopko
patent: 4485381 (1984-11-01), Lewiner et al.
patent: 4749991 (1988-06-01), Davis et al.
patent: 4787008 (1988-11-01), Graff et al.
patent: 4905559 (1990-03-01), Viviani
patent: 5006843 (1991-04-01), Hauer
patent: 5021776 (1991-06-01), Anderson et al.
patent: 5021916 (1991-06-01), Hubbard
patent: 5164718 (1992-11-01), Cedergren
patent: 5264834 (1993-11-01), Silken et al.
patent: 5313639 (1994-05-01), Chao
patent: 5434368 (1995-07-01), Hoffmann

Affiliated with

Also associated with

Rating

Apparatus for limiting control of electrical equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for limiting control of electrical equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for limiting control of electrical equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60497