Trigger switch and lock mechanism therefore
CA 1079332 A · Owner: Singer Company (The) · Inventors: Houser, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A trigger switch and lock mechanism therefore to be mounted in the handle of a drill housing for activating a motor of a drill wherein the trigger switch includes a speed control circuit carried on a circuit board. A trigger is slidably disposed in mounting brackets affixed on the circuit board. A locking member is slidably connected in one of the mounting brackets and is shiftable into contact with the trigger so as to lock the trigger in depressed position so that once the switch has been activated it will be locked in the "on" position at the selected speed setting. A spring is connected to the locking member to release the locking member from engagement with …
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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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
- 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.