Doorbell for pets

Details Doorbell for pets Doorbell for pets

1980-12-31

1982-04-06

Yusko, Donald J.

Communications: electrical

Systems

Audible signals

200 865, G08B 300

Patent

active

043238831

ABSTRACT:
A doorbell for pets consisting of a pair of scratch plates adapted to be hung movably respectively on the inner and outer surfaces of a door of a house or other building for yieldable movement toward said door under the impetus of a pet's scratching thereagainst, and an electrical system including an audible signalling device operable by switches mounted in the door and actuated by said scratch plates. Provision is made for maintaining operation of the signalling devices for any desired length of time despite merely momentary movements of the scratch plates, and for adjusting the force required to actuate the signals, both to prevent accidental operation by blowing wind, and to accommodate the device to pets of different sizes and strengths. The signals may be audibly distinguishable, to indicate whether the animal desires ingress or egress.

REFERENCES:
patent: 2909771 (1959-10-01), Minnich
patent: 3031546 (1962-04-01), Williams
patent: 3964058 (1976-06-01), Winston
patent: 3991415 (1976-11-01), Baar, Sr.

Affiliated with

Also associated with

Rating

Doorbell for pets does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-595557