|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||49/386 ; 49/394|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 33 인용 특허 : 0|
A door for closing an opening through a pet confining wall in a building, kennel, pen or the like, said door having a peripheral frame for mounting in the wall opening, a door member having its upper edge portion hinged to the frame on a horizontal axis for swinging movement of the door in either direction from a vertical closed position within the frame, and a spring tensioned slide acting between the frame and a cam on the upper edge of the door to yieldably retain the door in closed position.
In a pet door assembly for mounting in an opening in a shelter waLl to permit entrance or exit of an animal pet at its will, a. a frame for mounting on the wall to define a doorway within said opening, b. a flat door having substantially the same shape and size as said doorway positioned to close the doorway and having its upper portion hinged to the frame on a horizontal axis for swinging movement of the door from a normal vertical closed position within the doorway to open positions in either direction, c. said door having an upwardly facing cam on the...