Trapdoor for birdhouse

Details Trapdoor for birdhouse Trapdoor for birdhouse

1983-03-11

1984-09-18

Mancene, Gene

Animal husbandry

Bed or rest

43 61, 43 67, 119 49, 119 47, A01K 3100, A01M 2320

Patent

active

044717210

ABSTRACT:
A trapdoor for a birdhouse, particularly one constructed to attract purple martin birds, so as to trap in a compartment of the house species of undesirable birds, such as sparrows. The door includes an opening to permit the undesirable birds to enter a compartment of the birdhouse. A pivotal gate is secured to the door behind the opening and is retained by a trigger mechanism in an unblocking position above the opening. When a bird enters the compartment through the opening and alights on the trigger mechanism, the gate is released and drops by gravity across the opening to trap the bird within the compartment. The trapdoor includes structure for positively locking the gate against inadvertent pivotal trapping movement should the birdhouse or trapdoor be moved or displaced.

REFERENCES:
patent: 1619527 (1927-03-01), Moore
patent: 2229685 (1941-01-01), Swedenburg
patent: 3125823 (1964-03-01), Smith
patent: 3778922 (1973-12-01), Clark
patent: 4173092 (1979-11-01), Nakai
Bird Banding with Small Equipment, Elizabeth Herrick, Jan. 20, 1923, p. 6, from U.S. Dept. of Agr.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-788640