Method and apparatus for simultaneous edge bending of stair rail cap stock and channel stock
CA 1074682 A · Owner: Hossfeld Manufacturing Co. · Inventors: Whetstone, Cecil (Jr.); Burns, Anthony G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus is disclosed for simultaneously bending a length of handrail channel stock and handrail cap stock in an iron bender with a main frame and a swing frame which, comprises the steps of fitting the channel stock with a length, of flat stock inserted between its flanges into the recessed, underside of the cap stock and bending the resultant assembly, in a bender fitted with appropriately grooved back block forming, die and drawing block.
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
- Granted April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
- 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.