US Patent: 4,898,524
|
| Fluid Driven Rotary Motor
|
|
Patentee:
|
|
| James K. Butzen (exact or similar names) - Grayslake, IL |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jan. 27, 1989 |
| Granted: |
Feb. 06, 1990 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
Snap-On Tools Company History
|
|
Description: |
| Emrich & Dithmar - patent attorneys
Abstract
An improved, fluid driven rotary motor of the vane type includes a housing having a rotor cover disposed between a pair of end plates, a rotor rotatably mounted in the housing and a drive shaft torsionally affixed to the rotor. In the improved rotary motor of the invention, the rotor is slidable on the drive shaft so that the axial position of the rotor is permitted to "float" with respect to the housing. The degree of axial displacement, or degree of "float", is limited by a compression spring means and an abutting ring which cooperate with a pair of bearings in the end plates so that contact between the rotor and housing is avoided. Furthermore, the compression spring means is operative to force the rotor to return to a predetermined normal operating position upon axial displacement of the rotor.
|
|
