Segmented screen body elements
CA 1092061 A · Owner: Spiller, Clifford M. · Inventors: Spiller, Clifford M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making at least part of a sieve screen for use in a screening machine for dewatering grading ad, the like, includes the step of interlocking a plurality of sieve elements with complementary formations of adjacent elements engaging. The elements are interlocked by an elongate member extending in a channel through the engaged formations and the interlocking member may be secured in place by a settable material such as a liquid polymer introduced into the channel defined by the engaged formations. The complementary formations may be such that a substantially smooth continuous surface is provided for the joint between the elements. A number of such sieve screen parts may be coupled …
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 December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 1997.
- 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.