DAVID LEE PARTA
Pilots at Spg Ave, Naperville, IL
License number
Illinois A1454123
Issued Date
Nov 2015
Expiration Date
Nov 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
420 W Spring Ave, Naperville, IL 60540
Professional information
Rapper Construction
US Patent:
4932985, Jun 12, 1990
Filed:
May 5, 1989
Appl. No.:
7/348220
Inventors:
Robert E. Jonelis - Barrington IL
John A. Jonelis - Crystal Lake IL
David L. Parta - Naperville IL
Glen M. Peterson - Brainerd MN
John A. Jonelis - Crystal Lake IL
David L. Parta - Naperville IL
Glen M. Peterson - Brainerd MN
Assignee:
Midwest Power Corp. - Rolling Meadows IL
International Classification:
B03C 376
US Classification:
55112
Abstract:
A rapper for use in vibrating parts of an electrostatic precipitator by utilizing an impact force. An anvil is connected to a part of an electrostatic precipitator, such as, a section of electrodes either discharge electrodes or collecting plates or electrodes. A striker is engageable with an impact force on the anvil for vibrating the anvil as a result of the striker applying an impact force to the anvil. The vibration of the anvil is transmitted to the part. An elongated connector has one end connected to the striker. Crank means is connected to the elongated connector for raising the striker above the anvil and allowing the striker to drop into impact engagement with the anvil vibrating the anvil and the part of the electrostatic precipitator.