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Expired Canadian patentCanada

Arrangement for lifting and lowering or for pulling loads

CA 1254875 A · Owner: N.V.Sky Climber Europe S.A. Naamloze Vennootschap · Inventors: Rinio, Johannes

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present disclosure describes an arrangement for lifting and lowering or for pulling loads. The arrangement comprises two-piece traction sheaves whose two sheave halves can be pressed together, and seat grooves wherein ropes are radially pressed down into the seat grooves. The two sheave halves are mounted parallel to one another and are provided with a common peripheral V-shaped groove. The sheave halves are spring-loaded pressed together and at the periphery of the V-shaped rope groove, rope-supporting elements are fixedly mounted. Thereby a simple construction is achieved safety has, increased and the operation is simplified by requiring no maintenance.

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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 May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 1986
GrantedMay 30, 1989
Term endedMay 30, 2006
Patent numberCA 1254875 A
Classification (IPC)B66D1/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJan 6, 1986Patent grantedMay 30, 1989Term endedMay 30, 2006

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.