Volleyball net adjuster
CA 2008644 C · Owner: Stewart, John V. · Inventors: Stewart, John V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract: An apparatus for quick convenient adjustment or the tension, and height of volleyball nets comprises a vertically slidable hardware mounting platform on each net post, containing cable-connection hardware including winch means. Net height is changed by sliding the mount without the need to disconnect cables. Through an arrangement or pulleys a single winch tightens both the upper and lower net cables in unison with, equal force. The pulleys double the winch pull allowing use or a light, winch. They can also be configured to provide single pull on the lower cable, for nets with a steel upper cable and a rope lower cable. Two versions of the slidable mount are described; one is a …
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 January 26, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 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.