Well perforator
United States Patent 2782715
US Patent References:
Grenade
- - 2413004

Blasting cap
- - 2420201

Cartridge loading
- - 2440568

Well perforator
- - 2446640

Apparatus for perforating well casings and well walls
- - 2494256


Inventors:
Udry, John J.
Publication Date:
02/26/1957
View Patent Images:
Download PDF 2782715 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Borg, Warner
Primary Class:
175/4.600
Other Classes:
102/306, 89/1.150
International Classes:
E21B43/117; F42B3/08; E21B43/11; F42B3/00
US Patent References:
2513233Multiple jet blasting charge
2628559Explosive drill
2629325Jet type perforating unit
Foreign References:
GB578775A
GB578995A