Abstract: Disclosed herein is a door lock configured to indicate the lock status of the door lock to nearby persons. In some instances, the door lock includes a locking mechanism with one or more actuators configured to act directly on an indicator such that the indicator indicates the lock status of the lock.

Abstract: A swimming apparatus consisting of a generally cylindrical main body which is hollow and in which the front portion and rear portion are constructed and positioned in a streamlined fashion. The interior of the hollow, generally cylindrical main body is divided into a plurality of water-tight air chambers by a plurality of partition walls integrally fixed to the interior sides of said body. A diamond shaped face plate is affixed to the front underside portion of said body and extends outwardly therefrom. Attached by a hinge to the face plate is a pivotally mounted flange. The back and forth movement of the flange is somewhat restricted by wedge-shaped movement restricting members mounted on the underside of the face plate in front of the pivotally mounted flange and by wedge-shaped space maintaining members affixed to the back side of the pivotally mounted flange itself.A wall extends downwardly from both sides of the generally cylindrical body behind the face plate.

Abstract: A top guide for a fishing rod having a supporting ring fixed to the tip of the rod body by a brace, and has a holding groove with width being 1.5 times that of the fishing line diameter to hold the fishing line, extended from supporting ring 4. The fishing line can be thrown in a desired direction without requiring finger pressure on the fishing line, against the rod.