Gyratory crusher having corrugation-like-seal
US5803382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2/045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gyratory crusher having a frame with a lower frame portion, a crusher head, a mounting mechanism for pivotally and gyrationally mounting the crusher head on the lower frame portion such that the crusher head operably gyrates between a closed side setting and a corresponding open side setting, a seal mechanism for operably protecting the mounting mechanism. The seal mechanism includes a flexible member having an outer edge, sealingly connected to the crusher head, and an inner edge, sealingly connected to the lower frame portion by an outer bearing race secured to the inner edge, an inner bearing race secured to the lower frame portion, and bearing balls captured between the outer and inner bearing races. The flexible member may have a single wall structure with a corrugation-like configuration, or a double wall structure with an inflatable bladder therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.