Jonathan W Wittwer
Land Surveyors in Provo, UT
License number
Utah 4860959-E202
Category
Engineer/Land Surveyor
Type
Engineer Exam - Obsolete
Address
Address
Provo, UT
Professional information
Softwall Mining Method And Device
US Patent:
6505892, Jan 14, 2003
Filed:
Jun 30, 2000
Appl. No.:
09/609568
Inventors:
Joseph Chryst Walker - Albany CA 94710-1211
Randall D. Peterson - Sandy UT 84092
Brandon H. Woolley - Provo UT 84606
Jonathan Wayne Wittwer - Provo UT 84604
Joel Brian Mundt - Provo UT 84601
Jesse Tate Olson - Provo UT 84604
Brian Douglas Gate - Provo UT 84606
Nathan L. Baker - Lehi UT 84043
K. S. Mortensen - Provo UT 84602-4102
Randall D. Peterson - Sandy UT 84092
Brandon H. Woolley - Provo UT 84606
Jonathan Wayne Wittwer - Provo UT 84604
Joel Brian Mundt - Provo UT 84601
Jesse Tate Olson - Provo UT 84604
Brian Douglas Gate - Provo UT 84606
Nathan L. Baker - Lehi UT 84043
K. S. Mortensen - Provo UT 84602-4102
International Classification:
E21C 2740
US Classification:
299 32, 299 31, 299 33, 405145
Abstract:
A softwall mining method and device. Each of a plurality of mining devices comprise a supporting portion, an earth moving portion and a coupling mechanism for advancing the earth moving portion into a mining face, and for advancing the supporting portion toward the earth moving portion. Supporting portions of the devices are locked together to anchor movement of the earth moving portions, and earth moving portions of the devices are separately locked together to anchor the movement of the supporting portions.