Support nut
CA 2019261 A1 · Owner: Granbom, Bo · Inventors: Granbom, Bo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A support nut in machine elements of the screw-spindle- /nut comprising a supporting device which extends along the machine element for the purpose of preventing the occurrence of natural vibrations therein. The support nut (6) includes a ball race (7) which is arranged coaxially with the spindle. The ball race is provided with mutually parallel grooves (8), which extend transversely to the axis (9) of the ball race and the spindle, and balls (10) which run in the grooves (8) and in the screw threads of the spindle. A ball-retainer (11) is arranged coaxially between the ball race and the spindle and is freely rotatable in relation to the ball race (7), and a nut-section (12) is arranged …
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 June 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2012.
- 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.