Abstract: A crawl space winch system including a base plate; a winch box carried by said base plate; a winch mechanism disposed in said winch box and having a cable extending out of an opening in a front side of said winch box for attaching to an item; a winch drive shaft extending through a sidewall of said winch box and being operatively associated with said winch mechanism for retracting said cable; and, a primary anchor opening disposed in a generally central portion of said base plate for receiving a portion of a primary anchor to secure said base plate to the ground, and wherein said primary anchor provides a pivot point around which said base plate rotates.

Abstract: A flexible cover plate with an airflow opening. A fan carried on a rear side of the cover plate over the airflow opening. A protective screen carried on a front side of the cover plate over the airflow opening. An angle bracket carried in an elongated slot disposed in said cover plate having a first portion extending parallel along the rear side of the cover plate, and a second portion extending transverse to the front side of the cover plate above the airflow opening. A flexible polymer foam sheet carried on the rear side of the cover plate for conforming to a vent opening in a building foundation wall so that an airtight seal is formed against the vent opening. A fan speed controller adjusting a desired speed of the fan and airflow through the airflow opening.