Air static pressure and temperature measuring device for remote locations in stored porous material

Claim 1

A probe for simultaneously measuring air static pressure and temperature at a plurality of locations within a mass of particulate solids which comprises a plurality of serially connected probe segments each of said probe segments comprising: a. a rigid tubular member having a pair of holes extending through the rigid tube wall; b. an elongated flexible tube extending axially within said rigid tubular member, one end of said flexible tube protruding through one of said holes a sufficient length to extend around substantially the complete outer circumference of the rigid tubular member to form a circumscribing collar portioN, said collar having a plurality of small holes in the tube wall, the other end of said flexible tube adapted to be connected to remote air pressure measuring means; c. means for rigidly securing said collar portion to the rigid tubular member; d. temperature sensing means protruding outwardly through the second hole in the wall of the rigid tubular member, said temperature sensing means being rigidly secured to the outer wall of said rigid tubular member; e. signal conducting means connected to said temperature sensing means and extending longitudinally through the inside of said rigid tubular member; and f. means at one end of said rigid tubular member for securing another similar member, whereby a plurality of said probe segments can be connected end-to-end to form a probe of predetermined length having a plurality of pressure and temperature sensing means along the length thereof.