Shock absorber
CA 1058643 A · Owner: Monroe Auto Equipment Company · Inventors: Palmer, Dale A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shock absorber of the direct acting hydraulic type is disclosed as comprising a reciprocable piston having a piston body, the piston body being formed with first and second sets of spaced flow ports, the sets of flow ports being concentrically oriented with the first set being spaced radially inwardly from the second set; a first valve seat on one end of the piston body adjacent the first set of flow ports; a first valve member engageable with the first valve seat to block fluid flow through the first set of flow ports; first and second sequentially operable springs for resiliently urging the first valve member toward the first valve seat; second and third valve seats on the opposite end …
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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.