Dennis M Greenlee
Engineers in Salt Lake City, UT
License number
Utah 189149-2202
Issued Date
Mar 21, 2001
Expiration Date
Mar 31, 2009
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Salt Lake City, UT
Education
UNIVERSITY OF UTAH, Mar 18, 1993
Professional information
Chief Engineer At Baker Hughes
Position:
Chief Engineer at Baker Hughes
Location:
Greater Salt Lake City Area
Industry:
Defense & Space
Work:
Baker Hughes
-
Chief Engineer
Education:
University of Utah 1989 - 1994
Rotation Shaft With Vibration Dampening Device
US Patent:
6070734, Jun 6, 2000
Filed:
Aug 29, 1997
Appl. No.:
8/920799
Inventors:
Jerry W. Hunt - Murray UT
Dennis M. Greenlee - Salt Lake City UT
Lyn Maurice Greenhill - Roseville CA
Dennis M. Greenlee - Salt Lake City UT
Lyn Maurice Greenhill - Roseville CA
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
B03D 116, B03D 118
US Classification:
209169
Abstract:
Excessive vibration in industrial mixers such as flotation cells and draft tube mixers is attenuated by connecting a vibration dampening device to a rotor or impeller which is disposed in a mixing tank for pumping a nonhomogeneous fluidic material placed in the tank. In a draft tube mixer, where the rotor is connected to a drive shaft in turn connected to a motor for rotating the rotor, the vibration dampening device is connected to the shaft on a side of the rotor opposite the motor. In a froth flotation cell, if the rotor is hollow, the vibration dampening device is disposed inside a pipe in turn mounted inside the rotor along an axis thereof. The vibration dampening device takes the form of a tuned mass dampener tuned to a resonance frequency of the particular mixing apparatus.