Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-09-04
1997-09-09
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340650, 34082531, 34082532, 324510, 361212, 382115, G08B 2100
Patent
active
056661061
ABSTRACT:
An electronically controlled accessway includes a touch pad mounted to or immediately in front of, a door panel. A step plate is positioned immediately in front of the door. A user stands on the step plate to open the door and contacts the touch pad. A grounding sensor coupled to the touch pad and the step plate detects resistance between the touch pad and the step plate. If the resistance between the touch pad and the step plate is within a designated range, the grounding sensor releases an electronically controlled locking mechanism to permit the door to be opened. If the grounding sensor detects that the person is not properly grounded, the grounding sensor leaves the locking mechanism engaged to prevent the person from entering the statically sensitive area. In one embodiment, the door panel is pivotable about conventional hinges and the touch pad is integral to the door handle. In another embodiment, the door is a revolving door and the touch pad is integral to push plates mounted to the revolving door panels. In another embodiment the door is an electronically driven sliding door and the touch pad is mounted separately from the door panel. In this embodiment, the touch pad is mounted adjacent the door and the step plate is mounted directly in front of the door. When a properly grounded person stands on the step plate and touches the touch pad, the sensor activates an electronic door opener, thereby opening the door.
REFERENCES:
patent: H330 (1987-09-01), Burich et al.
patent: 3538501 (1970-11-01), Nance
patent: 4060935 (1977-12-01), Miller et al.
patent: 4742327 (1988-05-01), Burgess et al.
patent: 4785294 (1988-11-01), Campbell
patent: 4800374 (1989-01-01), Jacobson
patent: 4857916 (1989-08-01), Bellin
patent: 4975686 (1990-12-01), Delcourt
patent: 5034726 (1991-07-01), Blondin
patent: 5057965 (1991-10-01), Wilson
patent: 5218306 (1993-06-01), Bakhoum
patent: 5235783 (1993-08-01), Huber et al.
patent: 5325084 (1994-06-01), Timm et al.
patent: 5331502 (1994-07-01), Bakhoum
patent: 5422630 (1995-06-01), Quinn et al.
patent: 5491471 (1996-02-01), Stobbe
Hofsass Jeffery
Micron Electronics Inc.
Tweel , Jr. John
LandOfFree
Accessway with grounding sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Accessway with grounding sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accessway with grounding sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-72740