Quick coupling means for a working implement of an excavating machine
CA 1314909 C · Owner: F. Hulden Gravmaskiner Ab · Inventors: Hulden, Fritiof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupling means for detachably coupling a working implement (1) to the operating arm of an excavating machine said implement having, an upper surface facing the operating arm said coupling means, comprising a first attachment member (11) which is rigidly mounted to the upper surface of the implement (1) and comprises a coupling element (13), and a second attachment member (12) supported by the operating arm stick (6) and operating cylinder (7) via horizontal parallel shafts (8, 9) and comprising a coupling element (15) consisting of two locking parts (21, 22) arranged movable in relation to each other to be brought into locking engagement with the coupling element (13) of the first …
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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 March 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 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.