Abstract: An automatic wildlife feeder with a retractable cover and timing device so that the feed is available to wildlife only at pre-selected times.

Abstract: A device and method for sharpening the blade of a lawn mower without removing the blade from the mower, the device comprising a motor, a flexible drive cable, a grinder housing and a two-sided grinding disk. Most preferably, the motor is powered by a rechargeable battery, and the drive cable is connected to the grinder housing by a universal joint.

Abstract: This invention is a portable system for verifying the authorization of individuals who are allowed access under a fixed door access control system. The invention is comprised of a portable case containing a manually operable input device. The input devise is connected to an access control unit in the same form as used in the fixed door access control system. The access control unit has a means for connecting to a central data base for updating the list of individuals who are authorized access. The access control device then signals whether access is authorized for a particular individual. The system is powered by a direct electrical connection or by means of a battery.