Resources Contact Us Home
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
Resource location verification by comparing and updating resource location with a location of a consumer device after a threshold of location mismatches is exceeded
Adaptive signal power measurement methods and apparatus
System and method for providing borrowing schemes
Reusable pulse oximeter probe and disposable bandage apparatii
Imaging device and image analysis method
Packet-loss handling for downlink multi-user multiple-input and multiple-output wireless network
Cardioverter-defibrillator having a focused shocking area and orientation thereof
  Randomly Featured Patents
Integral anti-reflective surfaces of silicate glasses
King pin assembly for securing trailer to fifth wheel
Optical image to video transfer system having enhanced resolution and contrast for dark areas of the image
Industrial process control loop monitor
Storage system and method for copying volumes by inspection of data security
Adjustable corner squaring strip for a concrete column form
Input device for a computer
Combined ceiling fan and light fixture housing
Toilet seat lifter, or the like
Basketball goal support apparatus