WILLIAM O NICHOLS
Engineering in Marblehead, MA
License number
Massachusetts 26137
Issued Date
Mar 24, 1972
Expiration Date
Jun 30, 2002
Type
Industrial Engineer
Address
Address
Marblehead, MA 01945
Professional information
Multi-Stage Venturi Ejector And Method Of Manufacture Thereof
US Patent:
4790054, Dec 13, 1988
Filed:
Aug 6, 1986
Appl. No.:
6/894480
Inventors:
William O. Nichols - Marblehead MA
International Classification:
B23P 1300
US Classification:
291567R
Abstract:
The method of manufacture of a multi-stage venturi ejector and body segments thereof which comprises forming an elongated extrusion having an ejector body cross-sectional shape with laterally extending mounting projections and axially extending internal air passages, cutting said extrusion transversely to form ejector body portions of predetermined length, enlarging said passages to a desired size and shape, forming venturi chambers at the front end of one set of air passages and providing check valve means at the other set of air passages, and assembling said body segments end to end.