Michael Dennis O'Brien
Engineering at Del Matro Ave, Des Moines, IA
License number
Louisiana EI.0010908
Issued Date
Jan 1, 1900
Category
Civil Engineer
Address
Address
6826 Del Matro Ave, Des Moines, IA 50311
Professional information
Michael D O'Brien, Clive IA
Specialties:
Gastroenterologist
Address:
1378 Nw 124Th St, Clive, IA 50325
Education:
Doctor of Medicine
Board certifications:
American Board of Internal Medicine Sub-certificate in Gastroenterology (Internal Medicine)
Vertically Adjustable Overhead Lighting System
US Patent:
6312139, Nov 6, 2001
Filed:
Nov 23, 1999
Appl. No.:
9/448385
Inventors:
Britt W. Baker - Des Moines IA
Michael A. O'Brien - Des Moines IA
Dick Gosselink - Runnells IA
Carla Peterman - Urbandale IA
Michael A. O'Brien - Des Moines IA
Dick Gosselink - Runnells IA
Carla Peterman - Urbandale IA
Assignee:
Pioneer Hi-Bred International, Inc. - Des Moines IA
International Classification:
F21V 2114
US Classification:
362145
Abstract:
An apparatus used to deliver light from overhead to stimulate plant growth in a controlled environment. The distance between tops of the plants and the lights can be adjusted to correlate with plant growth by a motorized assembly for raising and lowering a bar suspended from an upper support and upon which are mounted growth lights. Horizontal sway of the bar upon which the growth lights are mounted is minimized by a guiding structure for one end of the bar. When florescent growth lights are used, bulk and heat produced by their ballasts are eliminated by locating all ballasts remotely from the apparatus.