MARC ALAN DANNA
Pilots at White Diamond Pl, Tucson, AZ
License number
Arizona A4144679
Issued Date
Nov 2015
Expiration Date
Nov 2020
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
12738 N White Diamond Pl, Tucson, AZ 85755
Professional information
Tubular Landscape Edging
US Patent:
6108969, Aug 29, 2000
Filed:
Aug 14, 1998
Appl. No.:
9/134706
Inventors:
Nicholas H. Danna - Tucson AZ
Marc A. Danna - Tucson AZ
Marc A. Danna - Tucson AZ
International Classification:
A01G 100, E01C 1122
US Classification:
47 33
Abstract:
Improved landscape edging includes a tubular upper portion and a relatively flat lower portion depending from the tubular portion. The tubular portion has plural slots at predetermined intervals along a major axis of the edging. The tubular portion enhances the strength and rigidity of the edging, while the slots provide the needed flexibility to allow the edging to be bent to the desired shape and configuration. The tubular portion is made by roll forming a relatively flat plain or galvanized steel plate after the slots have been punched into the plate. Two rows of slots are punched into the plate so that when the plate is roll formed, a slot is formed on each side of the tubular portion at predetermined intervals therealong.