Patents by Inventor Magill W. Clayton

Magill W. Clayton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5461551
    Abstract: A portable drakroom safelight which incorporates several features which enhance its usefulness in a darkroom. The portable safelight includes a lamp, a safelight filter, rechargeable batteries, a light sensor, and control means. The safelight filter filters all light produced by the lamp, thus making the safelight safe for use in a darkroom and with photosensitive materials. A surface mounting bracket or stand supports the portable safelight and includes a transformer for converting household electric current into low voltage direct current suitable for use by the portable safelight. When the portable safelight is removed from the mounting bracket it automatically switches to operate from the rechargeable batteries and its illumination level is automatically reduced. The lamp is automatically turned off or on when the light sensor detects the presence or absence of ambient white light.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: October 24, 1995
    Inventor: Magill W. Clayton