Abstract: A golf ball retriever includes a dome shaped or cylindrical head having a sidewall defining an interior cavity. The head has a first open golf ball receiving end and a second occluded end. A deformable retaining member extends from a first to a second location on the sidewall as a chord adjacent the first end. The distance from the retaining member to the most distant sidewall portion along a diameter generally perpendicular to the retaining member is slightly less that the diameter of a golf ball so that a golf ball that has been urged into the cavity is captured therein. In one embodiment, the sidewall includes fingers extending toward said first end one or more openings may be provided in the sidewall to allow a user to insert a finger into the cavity to urge a golf ball out of the cavity. The head may be pivotally mounted to a telescoping shaft.

Abstract: Electrical appliances, particularly A.C. operated appliances, are turned on and off from remote locations by shining a beam of light, using a flashlight or the like on a photoelectric transducer/semiconductor switching device interconnected between a power line and the appliance, the switching device being bi-stable, activatable for either switch-on or switch-off operations by a signal from a single photoelectric transducer, and further comprises delay means responsive to the occurrence of a switch-on or switch-off operation to prevent a subsequent switching operation until a number of seconds have elapsed to allow for variations of human response in handling of the activating light beam, thereby preventing on and off chattering.