Patents by Inventor Bangly K. W. So

Bangly K. W. So 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).

  • Photographic film package with detachable cartridge
    Patent number: 6522835
    Abstract: A lens-fitted photographic film package with dual lens includes a film-free self-activating shutter mechanism and a detachable cartridge for removing and installing film. A 35-mm film cartridge is attached to a cartridge adapter, and a filmstrip end is inserted and pre-wound into a winding housing including a winding spool therein. As photographs are taken, film is advanced frame-by-frame into the film cartridge, where it may be easily removed from the adapter without rewinding of the film, and replaced by a fresh film cartridge. Thus, the adapter transforms the lens-fitted photographic film package into a reusable package.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: February 18, 2003
    Assignee: Hi-Lite Camera Company Limited
    Inventors: Bangly K. W. So, Ivan W. K. Shum, Roland Walter Kohl
  • Photographic film package with detachable cartridge
    Publication number: 20010041066
    Abstract: A lens-fitted photographic film package with dual lens includes a film-free self-activating shutter mechanism and a detachable cartridge for removing and installing film. A 35-mm film cartridge is attached to a cartridge adapter, and a filmstrip end is inserted and pre-wound into a winding housing including a winding spool therein. As photographs are taken, film is advanced frame-by-frame into the film cartridge, where it may be easily removed from the adapter without rewinding of the film, and replaced by a fresh film cartridge. Thus, the adapter transforms the lens-fitted photographic film package into a reusable package.
    Type: Application
    Filed: January 25, 2001
    Publication date: November 15, 2001
    Inventors: Bangly K.W. So, Ivan W.K. Shum, Roland Walter Kohl