Vibratory actuator
US4387539A · kind A · utility
1Cited by
40References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Mar 30, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B31/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An actuator (22) for a vibratory finishing machine or the like includes a housing (24) with a rotatable quill shaft (44) of comparatively low bending stiffness extending therethrough. Mounted on each end of the quill shaft (44) is a journal (46) which defines a hydrodynamic bearing with an adjacent corresponding internal surface of the housing (24). The quill shaft (44) is axially constrained within the housing (24) by an inward thrust bearing (68) and an outward retainer (56), dynamic seal (64), static seal (62) and spring (66) located on opposite sides of each journal (46).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.