Valve pin locking mechanism
US7022278B2 · kind B2 · utility
5Cited by
15References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Jan 22, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/2806
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A locking mechanism for locking a valve pin of a nozzle of an injection molding apparatus in an extended position includes a generally oblong detent coupled to a pin. The pin extends through an aperture located at a first end of the detent to secure the detent to an inner wall of a recess, which is located adjacent the piston-receiving cavity of the valve pin. The detent is pivotable about the pin to rotate a second end of the detent into abutment with a return surface of the piston to restrict movement of the valve pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.