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Expired Canadian patentCanada

Apparatus for loading and/or unloading industrial presses

CA 1265091 C · Owner: Sahlin, Richard Theodore · Inventors: Sahlin, Richard Theodore

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

Work-handling apparatus, such as may be used in automatically loading and unloading a press in the manufacture of metal pressings is, arranged to reciprocate a work-handling attachment substantially linearly. The attachment is pivotally mounted on a crank lever which is pivotally, mounted on a crank arm which is pivotally mounted on mounting means the pivot axes of the crank arm and the attachment being substantially equi-distant from that of the crank lever. By means of geared connections between the mounting means and the crank lever (in the ratio of substantially 2:1), and between the crank arm and the attachment (in the ratio of substantially 1:2) the attachment is caused to maintain a …

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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1983
GrantedJanuary 30, 1990
Term endedJanuary 30, 2007
Patent numberCA 1265091 C
Classification (IPC)B65G49/00 +2 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedMarch 28, 1983Patent grantedJan 30, 1990Term endedJan 30, 2007

Sources & verification

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