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US 12,090,537 B2Granted
Dummy block for extrusion press
AssigneeExco Technologies Limited
InventorsPaul H. Robbins, Steve Johnson
Life of this patent
Estimating the term…
Abstract
A dummy block for a metal extrusion press includes: a generally cylindrical base having a forward surface and an outwardly extending circumferential flange; an expandable collar coupled to the base, the collar having an inwardly extending circumferential rib abutting the circumferential flange; a plunger disc seated against the forward surface of the base and accommodated by the collar, and a plunger shaft extending through the plunger disc and coupled to the base.
Claims10
A dummy block for a metal extrusion press comprising:
- a cylindrical base having a forward surface and an outwardly extending circumferential flange;
- an expandable collar coupled to the base, the collar having an inwardly extending circumferential rib abutting the circumferential flange;
- a plunger disc seated against the forward surface of the base and accommodated by the collar;
- and
- a plunger shaft extending through the plunger disc and coupled to the base,
- wherein the circumferential flange of the base has an outer surface having a rear cylindrical portion and a forward bevelled portion, and
- wherein the forward surface of the base comprises a planar central portion, and a beveled portion surrounding the central portion.
4 more elements
Dependencies are inferred from the claim text.