Automatic intercom system for buildings

Details Automatic intercom system for buildings Automatic intercom system for buildings

1999-03-30

2000-05-02

Kuntz, Curtis A.

Telephonic communications

Private or single line system

Doorbell system

379171, H04M 160

Patent

active

060581743

ABSTRACT:
A semi-automatic or a fully automatic intercom system. These intercom systems are hardwired intercom systems which cannot be used with telephone lines. The semi-automatic intercom system can be used with any kind of lobby panel including a lobby panel equipped with a keypad and an electronics board. The fully automatic intercom system according to the invention can be used only with a lobby panel equipped with a keypad and an electronics board. The fully automatic system can automatically disconnect a shorted out apartment unit from the system and restore the building to service immediately.

REFERENCES:
patent: D394653 (1998-05-01), Kato et al.
patent: 3484561 (1969-12-01), Matthews
patent: 3532820 (1970-10-01), Holm
patent: 3665116 (1972-05-01), Holstrom
patent: 4130728 (1978-12-01), Grauel
patent: 4188511 (1980-02-01), Smith et al.
patent: 4196317 (1980-04-01), Bartelink
patent: 5148468 (1992-09-01), Marrick et al.
patent: 5309510 (1994-05-01), Berndt
patent: 5384838 (1995-01-01), Hoffman
patent: 5586542 (1996-12-01), Borshchevsky et al.
patent: 5612994 (1997-03-01), Chen
patent: 5657380 (1997-08-01), Mozer
patent: 5754637 (1998-05-01), Choi
patent: 5774039 (1998-06-01), Housley
patent: 5905787 (1999-05-01), Stuart
patent: 5966432 (1999-10-01), Buckler et al.
patent: 6011839 (1978-12-01), Friedli et al.

Affiliated with

Also associated with

Rating

Automatic intercom system for buildings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic intercom system for buildings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic intercom system for buildings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1600099