Method and apparatus for calibrating and/or checking of load cells
CA 1293978 C · Owner: Hafner, Hans W. · Inventors: Hafner, Hans W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for calibrating and/or testing of load cells of heavy duty weighing systems use a force transmission device being slef-adjustable without friction and having a force transmission ratio in the range of 1:50 to 1:5000 and is adapted to be placed onto a force introduction member. The load cell interposed between said force introduction member and a base may be calibrated by connecting said force transmission device through said force introduction member to said base and by applying varying calibration standards at the force introduction side of the force transmission device.
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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
- 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.