Bayonet style connector for metal extrusion dummy block
US5272900A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Sep 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C26/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a circular dummy block for use in an extrusion press for extruding through a die, extrudable metal, a bayonet type coupler for connecting the dummy block to a stem of the extrusion press. The bayonet type coupler comprises: PA1 i) a post having on its outer end portion a first set of lugs of the bayonet style coupler, PA1 ii) a recess in the stem and having about its periphery a second set of lugs complementary to the first set to complete the bayonet style coupler, PA1 iii) a connector for connecting an inner end portion of the post to the dummy block, the connector being adapted to permit longitudinal movement of the dummy block along the post toward the outer end portion and permit lateral movement of the dummy block relative to the post, such longitudinal and lateral movement of the dummy block relative to the post allowing the dummy block to float during use in an extrusion press, and PA1 iv) a lock device in the stem for fixing the post once the bayonet coupler is assembled by inserting the outer end portion in the recess to locate the first set of lugs inwardly of the second set of lugs and rotating the post to lock the first set of lugs behind the second set of lugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.