William Stanley Warren
Electrician at Old New Bern Rd, Chocowinity, NC

License number
North Carolina 08400-L
Issued Date
Feb 1, 2017
Expiration Date
Jan 31, 2018
Category
Electrican
Type
Limited Classification
Address
Address
2283 Old New Bern Rd, Chocowinity, NC 27817
Phone
(919) 946-7775

Professional information

William Warren Photo 1

Row Control System For Vacuum Operated Seed Planter

US Patent:
6718891, Apr 13, 2004
Filed:
Aug 6, 2001
Appl. No.:
09/922269
Inventors:
David Burbage, Jr. - Belhaven NC 27810
William S. Warren - Chocowinity NC 27817
International Classification:
A01C 700
US Classification:
111177
Abstract:
A seed planter having a plurality of vacuum operated seed metering units includes a valve assembly connected between the metering units and the vacuum manifold permitting discrete control of the operation of each metering unit.