Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hydraulically actuated tool for mechanically splitting rock-like material










Image Number 3 for United States Patent #4114951.

A rock splitter tool is hydraulically actuated by a piston which moves a tapered wedge between feathers mounted at one end in a retaining means. The feathers and wedge, as an assembly, are inserted into a predrilled hole and the wedge is driven forward by the hydraulic piston to move the feathers outwardly to split the rock. The present invention is directed toward providing a hydraulically moved wedge in which the feathers and wear plate portions are retained by a clam shell clamp and retainer which are readily separated and removed to enable an inspection and/or replacement of any damaged apparatus. This clam shell clamp enables existing apparatus to be converted. Auxiliary apparatus utilizing a jack hammer device is also shown as is a hydraulic pulsation developing rotary valve which is adapted to cycle the wedge as it is moved forwardly.








 
 
  Recently Added Patents
Treatment devices with deliver-activated inflatable members, and associated systems and methods for treating the spinal cord and other tissues
Rupture resistant system
Early kill removal graphics processing system and method
Methods of packaging imager devices and optics modules, and resulting assemblies
Liquid crystal display device
Self-correcting amplifier system
Systems and methods for automated institutional processing of payments
  Randomly Featured Patents
System and methods for predicting future agent readiness for handling an interaction in a call center
Arrangement for the continuous treatment, particularly washing, of textile materials
Method and apparatus for controlling a continuously variable transmission
Trunnion-mounted weight measurement apparatus
Switch device and wiring structure therefor
Contrast medium injection device and method of use
Article and method for producing extremely small pore inorganic membranes
Film holder
Semiconductor wafer processing method that allows device regions to be selectively annealed following back end of the line (BEOL) metal wiring layer formation
Air blast fuel injecton system