Pen turret rotation for plotters
CA 1263851 C · Owner: Hewlett-Packard Company · Inventors: Glassett, Kevin L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a plotter (10) having a plurality of pens (14) stored in a rotatable turret (16) for selective use in a plotting operation, the turret may be rotated by the drive motor (32) used to move the paper (12) bidirectionally thereby eliminating the cost and weight associated with a pen turret drive motor. The rotation of the turret is mechanically coupled to a grit wheel shaft (34) which is, used to move the paper and which is driven by the paper drive motor. The turret is positioned on a spindle (86) provided with slots (88) associated with the location of the pens. The bottom of the spindle is provided with a worm gear (110), which is continuously engaged by a worm (94) mounted on one end of …
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 December 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 12, 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.
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.