WALLACE M PRESTON
Engineering in West Springfield, MA
License number
Massachusetts 18769
Issued Date
Dec 7, 1962
Expiration Date
Jun 30, 2002
Type
Mechanical Engineer
Address
Address
West Springfield, MA 01089
Professional information
Sheet Material Cleaning Machine
US Patent:
5008968, Apr 23, 1991
Filed:
Jul 27, 1989
Appl. No.:
7/386429
Inventors:
Wallace Preston - West Springfield MA
Assignee:
Markel Industries, Inc. - Enfield CT
Julie Associates, Inc. - North Billerica MA
Julie Associates, Inc. - North Billerica MA
International Classification:
B08B 600
US Classification:
15 151
Abstract:
A machine for cleaning the upper and lower surfaces of a sheet of material and having a housing and a conveyor for driving the sheet through the housing and through first and second cleaning stations located therein. At the first cleaning station portions of the surfaces of the sheet exposed by the conveyor are cleaned by passing the sheet between ionization bars which neutralize static electrical charges on the sheet, air jets which blow light particulate matter from the surfaces of the sheet and rotary brushes which sweep the surfaces of the sheet. Portions of the sheet surfaces not exposed at the first cleaning station are exposed by the conveyor as the sheet passes through the second cleaning station, where it is further cleaned by similar cleaning apparatus. As the sheet leaves the housing, it passes another ionization bar which neutralizes static charges produced by frictional engagement of the air jets and rotary brushes with the sheet surfaces.