Hydraulic press
CA 1251092 A · Owner: Hepburn, James Thomas · Inventors: Malashenko, Leon; Hepburn, James Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A 2000 ton hydraulic press is described. The press design eliminates the side slabs and substantial cross-head associated with conventional presses. The press simply has a base that includes a lower platen and bolster plate. Four vertical posts extend upwardly through the lower platen bolster plate and guide structure, beneath the lower platen bolster plate constrains the posts to move vertically while bearing horizontal forces and bending moments which may be applied to posts for example during compression of a mold containing a molding charge. Four large-bore short-stroke hydraulic cylinders are attached to the base below the lower platen bolster plate, and serve to raise and lower the …
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 March 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 14, 2006.
- 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.