Reinforced hose structure
CA 1189003 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Eisenzimmer, George W.; Schisler, Robert C.
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 hose structure 10 of simplified construction suitable for rigorous high pressure applications such as rotary well-drilling apparatus is described. The hose includes a heavy-walled tube 12 of elastomeric material having a measured stress of at least 600 psi at 20 percent elongation, an elongation at rupture of at least 150 percent and a Young's modulus of at least 2000 psi. The formulation of the tube material includes a reactive resin system capable of polymerizing in situ.
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 June 18, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2002.
- 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.