Grapple impactor
CA 2238068 C · Owner: Hickman, Halbert I. Jr. · Inventors: Hickman, Halbert I. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved robotic power grapple having the capability to both manipulate and impact objects. The grapple has a head assembly (43) containing pivotal jaws (34, 34') and an impact hammer (29) disposed within a rotation means (33) to allow the head assembly (43) and jaws (34 34') to rotate about a central axis , (41). An impact rod (39) extends through the rotation means (33) and through an opening (53) in the tips (37, 37') of the jaws (34 34') to permit , impaction of objects proximate the opening. In combination with an articulated boom (10) and orientation means (42), the improved grapple may be utilized in severe-duty foundry operations to remove gates and risers from foundry …
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
- Filed February 22, 1996 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2018.
- 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.