Lamp assembly for helmets, hard hats and the like
CA 1093523 A · Owner: Isfeld, Rodney H. · Inventors: Isfeld, Rodney H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment a battery case and lamp as-, sembly detachably engage with a pair of clips secured to the front of the helmet. In the preferred embodiment a lower horizontal rod attached to the back of the battery case clips into a pair of clips secured to the front of the helmet and a pair of resilient claws at the top of the battery casing, detachably engage any one of a plurality of projecting teeth, also secured to the front of the helmet. The case and lamp assembly pivot around the horizontal rod so that the angle of the lamp assembly can be adjusted to suit the user. Switch means are provided for the lamp assembly to connect and disconnect same from the batteries within the battery …
Read the whole patent
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 January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- 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.