Character selection and escapement system for serial impact printer
CA 1191472 A · Owner: International Business Machines Corporation · Inventors: Dollenmayer, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A serial impact printer includes a frame mounted drive motor coupled to a print wheel to effect rotation thereof. The print wheel is mounted to a movable print carrier which serially moves from print position to print position along the print line. The motor is coupled to the wheel pulley of the print wheel through a belt which is wrapped about two idler pulleys located on a sub-carrier. The sub-carrier 61 moves one half the distance of the print carrier so that during escapement motion of the print carrier the belt, imparts no rotary motion to the wheel pulley and hence to the print wheel. The print carrier may be clamped to the belt to effect the return motion thereof. The motor …
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 August 6, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2002.
- 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.