Beach beam
CA 1319020 C · Owner: Fendall Marbury · Inventors: Martinsen, Ronald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A beam- or truss-like reinforced concrete unit 1 to inhibit the erosion of sand beaches and river banks by the retardation and diversion of flow across them intended to be placed on the bottom at right angles to the flow of sand-laden water, without being fastened down. Transverse passages 5 formed by lower chord 6 upper chord 7 and diagonal members 8 allow water to flow horizontally through the unit, but cause sand to drop out. Diagonal structural members 8 provide great stiffness and strength, despite the presence of passages 5. To increase the fallout of sand passages 5 are in two, groups which meet at the centerplane of the unit out of, registry with each other, so that each group of …
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 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 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.