Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for blasting rock
T101301 Method for blasting rock
Patent Drawings:Drawing: T101301-2    Drawing: T101301-3    Drawing: T101301-4    Drawing: T101301-5    Drawing: T101301-6    
« 1 »

(5 images)

Inventor: Persson, et al.
Date Issued: December 1, 1981
Application: 06/154,420
Filed: September 2, 1979
Inventors: Holmberg; Roger (S-140 41 Sorunda, SE)
Nord; Gunnar (S-191 44 Sollentuna, SE)
Persson; Per-Anders (S-117 48 Stockholm, SE)
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 102/308
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: Method of blasting rock to attain a predetermined fracture result. The necessary energy for the blasting is provided at an amount and in an application which is decided by calculating the stresses with regard to previously plotted blasting effects and to a previously prepared description of the rock structure.
Claim:
Description:
 
 
  Recently Added Patents
Semiconductor device and method of forming discontinuous ESD protection layers between semiconductor die
Locking flange
Autonomous primary-mirror synchronized reset
Visual universal decryption apparatus and methods
Toner cartridge and image forming apparatus including the same
Cationic polymers for antimicrobial applications and delivery of bioactive materials
Drug comprising as the active ingredient proliferative vector containing survivin promoter
  Randomly Featured Patents
Compressing aid for cosmetic powders
On-vehicle radar system
Ballast device with built-in power supply and operation thereof
Apparatus for producing compost
Compact disc rack
Pixel for display and method of forming same
Apparatus for affixing removable notes to a moving web
Method of frequency-stabilization of a laser and a laser for carrying out said method
Machine tool
Safety electric plug with overcurrent protective means