B-motor with floating locking plug
CA 1314239 C · Owner: Elward, Michael P. · Inventors: Lodwick, Donald R.; Elward, Michael P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spring motor comprises an output drum rotatably mounted to a casing and a first end of a spring attached to the output drum. A second end of the spring is attached to a free floating locking plug, around which the spring coils in an unstressed state. A pin is mounted near the output drum to prevent the locking plug from passing between the pin and the output drum.
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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.