(19)
(11) EP 2 852 854 A1

(12)

(43) Date of publication:
01.04.2015 Bulletin 2015/14

(21) Application number: 13794555.6

(22) Date of filing: 22.05.2013
(51) International Patent Classification (IPC): 
G01V 3/15(2006.01)
(86) International application number:
PCT/US2013/042315
(87) International publication number:
WO 2013/177340 (28.11.2013 Gazette 2013/48)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 22.05.2012 US 201261650413 P

(71) Applicants:
  • NXT Energy Solutions Inc.
    Calgary, Alberta T2P 3E6 (CA)
  • Forest, Carl A.
    Denver, Colorado 80202 (US)

(72) Inventors:
  • LISZICASZ, George
    Calgary, Alberta T2P 3E6 (CA)
  • GUI, Xiang
    Calgary, Alberta T3G 3N6 (CA)

(74) Representative: Angerhausen, Christoph 
Boehmert & Boehmert Anwaltspartnerschaft mbB Patentanwälte Rechtsanwälte Pettenkoferstraße 20-22
80336 München
80336 München (DE)

   


(54) GRAVITY TRANSDUCER AND APPLICATION TO HYDROCARBON EXPLORATION