DELMAR R PARSONS, JR
Broker in Greenfield, MA
License number
Massachusetts 27269
Issued Date
Nov 1, 1977
Expiration Date
Jul 9, 1980
Type
Salesperson
Address
Address
Greenfield, MA 01301
Professional information
Method And Apparatus For The Aqueous Cleaning Of Populated Printed Circuit Boards
US Patent:
5129956, Jul 14, 1992
Filed:
Oct 6, 1989
Appl. No.:
7/417937
Inventors:
Raymond E. Pickering - Vassalboro ME
Patricia E. Waitkus - Rockport MA
Delmar R. Parsons - Greenfield MA
Lincoln Soule - Wendell MA
William T. Walker - South Deerfield MA
Robert E. Bedaw - Turner Falls MA
Patricia E. Waitkus - Rockport MA
Delmar R. Parsons - Greenfield MA
Lincoln Soule - Wendell MA
William T. Walker - South Deerfield MA
Robert E. Bedaw - Turner Falls MA
Assignee:
Digital Equipment Corporation - Maynard MA
International Classification:
B08B 102, B08B 302, B08B 1102
US Classification:
134 15
Abstract:
A method and apparatus for the aqueous cleaning of a printed circuit board having surface mounted components assembled thereon. The invention involves a heated aqueous solution sprayed under high pressure through a helically-vaned nozzle that is moving rotationally about the plane of a moving printed circuit board. The apparatus accomplishes a thorough cleaning of all components and areas of the printed circuit board with the use of a water based cleaning solution.