Belt/disc sander with dust pickup means
CA 2074905 A1 · Owner: Feldman, Daniel · Inventors: Feldman, Daniel; Schultz, William H.; Neitzell, Roger D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a dust collection system for both a belt sander and a disc sander in which the dust collector for the belt sander has a removable upper section to enable a workpiece longer than the belt bed to be sanded and the disc dust collector has the front lower one-half removable therefrom to expose the entire disc for sanding. In addition, and end stop is associated with the belt sander which is formed in the shape of an elongated rectangular plate having a plurality of U-shaped orifices at the bottom thereof to form a comb-like structure that allows a greater amount of dust to enter the dust collector for the belt sander. 2466p
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
- Filed July 29, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2014.
- 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.