Drilling apparatus for boring an array of holes in a workpiece
CA 1237001 A · Owner: Peddinghaus, Rolf · Inventors: Peddinghaus, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for drilling a large profile workpiece has a support fixable relative to the workpiece a drill arbor, centered on an axis intersecting the workpiece a bit, coaxially carried on the arbor, and a drive connected to the arbor for advancing the bit toward the workpiece either at a relatively fast advance speed or at a relatively slow boring speed. A guide element displaceable in the support parallel to the axis is secured by a compression spring to the arbor for joint movement parallel to the axis with a predetermined limited lost-motion stroke, in other words the arbor and, element can only move relative to each other through this stroke. A switch carried on the element and 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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
- 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.