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
System and method for routing streaming data requests
Representing polarized light in computer models
Protocol delay measuring device and protocol delay measuring method
Undercabinet plug-in mount
Anthranilic diamide compositions for propagle coating
Method for producing carrier on which microorganisms capable of conducting multiple parallel mineralization are immobilized, column reactor and solid medium for cultivating plants
Herbal composition for the treatment of wound healing, a regenerative medicine
  Randomly Featured Patents
Conveyor shaft support assembly
Method of making a photosensitive electrode and a photosensitive electrode made thereby
Minimum lateral play architecture servo arm
Suture tensioner with gauge
Peroxide-cured polyacrylates
Rotary hot dog cooker
Slide fastener installation and method of making the same
Bill processing device
Motor vehicle wheel front face
Polishing apparatus and two-step method of polishing a metal layer of an integrated circuit