DAVID CHARLES GRAY
Pilots at Anson Dr, Columbia, SC
License number
South Carolina A2686226
Issued Date
Nov 2016
Expiration Date
May 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
536 Anson Dr, Columbia, SC 29229
Professional information
Sales At Sales &Amp; Marketing Technologies
Position:
sales at Sales & Marketing Technologies
Location:
Columbia, South Carolina Area
Industry:
Health, Wellness and Fitness
Work:
Sales & Marketing Technologies
-
sales
Non-Jamming Pulpwood Chipper Chute And Spout Assembly
US Patent:
5477900, Dec 26, 1995
Filed:
Mar 15, 1995
Appl. No.:
8/404417
Inventors:
David A. Gray - Columbia SC
International Classification:
B27C 100
US Classification:
144180
Abstract:
An improved chute and spout assembly for use with a wood chipper that clears logjams by the use of hydraulic rams attached to the chute near the chipper. The rams move between an extended position, for moving the logs, and a retracted position, when the logs are sliding by gravity on the interior surface of the chute. The rams are oriented and spaced apart in order to move the logs when jammed without interfering with each other when more than one ram is extended into the interior of the chute to move the logs. When retracted, the ends of the rams are approximately flush with the interior surface of the chute. Each ram is independently controlled for flexibility in clearing logjams.