Rubber-lagged sheave
CA 1205657 A · Owner: Wyrepak Industries, Inc. · Inventors: Kovaleski, Joseph J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A pulley or sheave that is lagged with rubber or rubber-like material, having two disc-like members which are disposed broadside to each other and secured together to form an annular groove for receiving and guiding a strand of material. At their centers, the members have bearing means to accommodate a spindle. In the annular groove for the strand of material the members have oppositely disposed wall portions characterized by reentrant side walls. A wear strip of relatively soft resilient material, such as rubber, having an elongate rib occupies the annular groove, the rib being accommodated in and frictionally seized by the re-entrant side walls. The wear strip has abutted ends …
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 10, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 2003.
- 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.