Resources Contact Us Home
Shaft drilling machine

Image Number 3 for United States Patent #4483403.

A shaft drilling machine has a circularly moving drilling head. The drilling head is angularly oriented with respect to the longitudinal axis of the shaft sought to be drilled. Loosened material is transported from the lower portion of the shaft by pickup means, moving with the drilling head, and taken to the upper portion of the angularly oriented bottom of the shaft, whereupon the loosened material or borings slide, by gravity, to a centrally located vertical conveyor mechanism for final removal of the material or borings from the shaft.

  Recently Added Patents
System and method to assess and report the health of landing gear related components
Method and apparatus for networked modems
Light fixture
Housing for gas flow indicator
Heap/stack guard pages using a wakeup unit
Image heating device
Method for manufacturing non-volatile memory device, non-volatile memory element, and non-volatile memory device
  Randomly Featured Patents
Locking latch assembly for mounting an electronic component drawer in a rack
Hydrocyclone separator
Crate assembly and materials therefor
Truck sleeper unit
Increased format efficiency using disk synchronized write
Printer platen assembly for a handheld printer
Air-flow regulation system for a coal gasifier
Enqueuing a configuration change in a network cluster and restore a prior configuration in a back up storage in reverse sequence ordered
Broadband network for coaxial cable using multi-carrier modulation
Process for forming dual metal gate structures