Underwater camera housing with transparent head enclosing lamp
CA 1063854 A · Owner: Preussag Aktiengesellschaft · Inventors: Winnacker, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved housing assembly for an underwater camera with a flash device is disclosed and includes a hollow cylindrical pressure housing. The hollow cylindrical pressure housing has a shell or wall including a window for the objective of the camera and has a pressure tight head made of transparent material in, which the flash device is disposed. This pressure tight head made of transparent material permits wide angle illumination while reducing the expense of incorporating a flash device in a pressure housing. The pressure type head may be made of an acrylic glass and threadably engage the housing by means of a connector. The device also includes an O-ring seal positioned between to the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 9, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.