| 摘要 |
<p>An improved animal trap in which the animal may be made to expire due to hypercpnia rather than through impact or trauma. The trap includes a generally air-tight enclosure having the shape of a hollow prismoid defined by a relatively long, rectangular, bottom wall, a relatively short rectangular wall of a width equal to that of the bottom wall, a rear wall extending perpendicularly to the bottom wall at one end edge thereof and joined to the top wall at a corresponding end edge thereof, and first and second side walls in the form of a four-sided irregular polygon, there being an obliquely extending door open-ing at the end of the enclosure opposite to the rear wall. A door member is pro-vided which is pivotally mounted proximate the door opening and is biased to assume a normally closed, sealing relationship with respect to the door opening. The door is adapted to be propped open by means of a latch member. A first class lever is pivotally arranged within the enclosure and it has a bait receiving area proximate the end wall. When an animal enters the enclosure and advances towards the bait, the lever tips under the weight of the animal to release the latch and allow the door to snap closed.</p> |
