NIOSHTIC-2 Publications Search

Machine for mixing and injecting water and grout into a roof bolt hole.

Authors
Simpson RE
Source
US Pat 4,497,578 1985 Feb; :1-7
NIOSHTIC No.
10003306
Abstract
An apparatus in which grout is extruded from the same chamber in which mixed. Provision is made to clean the system after it has undergone one cycle of mixing and extrusion. The basic components of the apparatus include a mixing chamber with a mixing ram having collapsible mixing fingers. Encircling this mixing ram is an extruding ram with a ram head. The mixing ram is concentric with and extends through a lower extruding ram cylinder with the upper portion of the mixing ram having a mixing head normally seated in the mixing chamber and concentric with the ram head. Provision is made to bring water into the mixing chamber, to insert grout in the same chamber, and to outlet the water and grout from the same.
Keywords
Mining industry; Mining equipment; Roof bolts; Equipment design
Publication Date
19850205
Document Type
Patent
Fiscal Year
1985
NIOSH Division
SRC
Source Name
United States Patent 4,497,578
State
WA
Page last reviewed: July 15, 2022
Content source: National Institute for Occupational Safety and Health Education and Information Division