Adjustable flight bars for packaging machine
CA 2113500 C · Owner: Van Horne, George R. · Inventors: Calvert, Rodney K.; Fishback, Alton J.; Van Horne, George R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system of flight bars each flight bar having a leading component and a trailing component, a first pair of endless driving elements interconnected with each leading component and a second pair of spaced apart endless driving elements interconnected with each trailing component. Controlled relative movement is imparted to the first and second pair of endless driving elements so as to vary the distance between the trailing component of a flight bar and the leading component of an immediately succeeding flight bar thereby to render the system adaptable for use in conjunction with packages of different horizontal dimensions in the direction of movement of the flight bars.
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 14, 1994 and granted October 13, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2016.
- 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.