Stamping press
CA 1111713 A · Owner: Wrona, Theodore J. · Inventors: Wrona, Theodore J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stamping PRESS, Abstract of the Disclosure A stamping press in which a frame supports a ram for reciprocating movement thereof and one or more wobble plates mounted on a main shaft operate a pivoted yoke for reciprocating the ram, and a die section mounted thereon. The ram is normally operated through two complete reciprocating movements for each revolution of the main shaft, and a counter-weight operated by the yoke is preferably included in the press structure for balancing the movement of the ram. The wobble plates may have a means for adjusting the angularity to vary the length of the ram stroke, and the crown of the press is preferably hydraulically separated with respect to the base …
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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- 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.