Two-stage deadman control for walk-behind mowers
CA 1111662 A · Owner: Deere & Company · Inventors: Carolan, Donald L.
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 self-propelled walk-behind mower includes blade and traction drive clutch control levers associated with a deadman control lever which operates a pair of lever latches such that it is necessary for the deadman control lever to be held depressed against the guide handle of the mower to allow the blade and traction drive control lever to be held in respective clutchengage positions, the control levers being biased to automatically return to respective clutch-disengage positions once the deadman control lever is released. A pair of latch release levers are respectively operative to selectively actuate one or the other of the lever latches so as to permit one or …
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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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.