Hydraulic actuator
CA 1322899 C · Owner: Hildre, Hans Petter · Inventors: Hildre, Hans Petter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydraulic wing actuator for turning movement of a spindle, especially a rudder stock (3) comprising a lower, part (2) fixed to the ship hull and an upper part (1) secured to the lower part and which together define a substantially torus shaped guiding path for wings (8 7) connected with, the lower part and the rudder stock respectively where a, ball shaped hub (4) being secured to the rudder stock (3) and journaled slideably in the lower and upper parts cre-, ating the radially inward facing concave limitation of the, guiding path which remaining torus shaped part being formed by the upper and lower parts, at least one fixed partition wall (5) being connected with the lower part and the …
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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 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.