Piston seal
CA 1053283 A · Owner: Disogrin Industries Corporation · Inventors: Faber, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seal assembly for use on a piston having a piston seal groove with spaced shoulders formed therein comprising a deformable sealing ring adapted to be maintained in the groove and having inner and outer peripheral sealing portions and, side surfaces, the sealing ring is comprised of a homogeneous thermosetting elastomeric material having a relatively high shear modulus and being wear, tear, and abrasion resistant; and a pair of unitary bearing means, each of which is juxtaposed opposite the side surfaces of the sealing ring and is made of a wear-resistant material which is harder than the material of the sealing ring. Each of the bearing means includes bearing section means and support …
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 April 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 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.