Title:
Devices for controlling the firing of charges of powder or explosives from a distance
United States Patent 2761385
Inventors:
Marcel, Schlumberger
Application Number:
US25289251A
Publication Date:
09/04/1956
Filing Date:
10/24/1951
Assignee:
Schlumberger, Prospection
Primary Class:
Other Classes:
89/1.15, 175/4.55, 361/248
International Classes:
E21B43/1185; F42D1/05
View Patent Images:
US Patent References:
2569511Blasting device1951-10-02
2546686Blasting device1951-03-27
2543823Casing perforating gun1951-03-06
2511408Side wall sample taker1950-06-13
2343087Switching mechanism for borehole apparatus1944-02-29
2331058Firing apparatus for gun perforators1943-10-05
2307729Well explosive1943-01-05
1738595Method for firing explosives1929-12-10