A mobile density and moisture content sensing device for continuous logging of a terrestrial surface

• US 3,354,310 A
• Filed: 10/14/1963
• Issued: 11/21/1967
• Est. Priority Date: 10/14/1963
• Status: Expired due to Term

• Current Assignee: Gilbert Swift
• Original Assignee: Gilbert Swift
• Inventors: Swift, Gilbert
• Application Number:
  US04/315,901
• Time in Patent Office: 1,499 Days
• US Class Current: 250/253
• CPC Class Codes: E02D 1/00 Investigation of foundation soil in situ investigation involving boring or specially adapted to earth drilling E21B25/00, E21B49/00; investigating or analysing materials by determining their chemical or physical properties, in general G01N, e.g. sampling G01N1/00
• CPC Class Codes: G01N 23/16 the material being a moving sheet or film
• CPC Class Codes: G01V 5/02 specially adapted for surface logging, e.g. from aircraft

Claims

1. A MOBILE UNIT FOR LOGGING A TERRESTRIAL SURFACE TO DETERMINE THE MOISTURE CONTENT AND DENSITY THEREOF, SAID UNIT COMPRISING:

A FRONT WHEEL DRIVE LAND VEHICLE HAVING A PAIR OF COAXIAL REAR WHEELS, EACH REAR WHEEL BEING INDEPENDENTLY, SPRINGLESSLY ATTACHED TO THE FRAME OF THE VEHICLE;

A NUCLEAR DENSITY SENSING DEVICE MOUNTED IN THE VEHICLE;

PIVOTALLY ATTACHED PAIR OF PARALLEL BARS IN THE REAR PORTION OF THE VEHICLE, THE NUCLEAR DENSITY DEVICE ATTACHED TO THE PIVOTALLY ATTACHED PARALLEL PAIRS, AND CENTERED BETWEEN THE WHEELS IN THE PLANE OF THE AXLES OF THE REAR WHEELS, THE LONGEST EFFECTIVE AXIS OF THE NUCLEAR DENSITY SENSING DEVICE ALIGNED WITH THE AXIS OF THE AXLE, SAID DENSITY SENSING UNIT POSITIONED WITHIN THE VEHICLE DURING TRANSPORT;

MEANS IN THE VEHICLE ATTACHED TO THE DENSITY SENSING DEVICE TO LOWER THE DENSITY SENSING DEVICE A SMALL SPACED VERTICAL DISTANCE ABOVE THE TERRESTRIAL SURFACE DURING THE LOGGING OPERATION;

THE PIVOTALLY ATTACHED PARALLEL BARS MAINTAINING THE DENSITY SENSING DEVICE SUBSTANTIALLY PARALLEL TO THE TERRESTRIAL SURFACE BEING TRAVERSED;

A COAXIAL TWO WHEELED TRAILER SPACED FROM THE REAR OF THE VEHICLE;

A NUCLEAR MOISTURE CONTENT SENSING DEVICE MOUNTED IN THE TRAILER IN THE PLANE OF THE AXLES OF THE WHEELS WITH THE LONGEST EFFECTIVE AXIS ALIGNED WITH THE AXLES;

TIRES ON THE REAR WHEELS OF THE VEHICLE AND TIRES ON THE TRAILER HAVING AN AREA OF CONTACT COMMENSURATE WITH THE EFFECTIVE LONGITUDINAL AXIS OF THE SENSING DEVICES;

A RIGID TOW BAR ATTACHING THE TRAILER TO THE REAR OF THE VEHICLE THEREBY SPACING THE TRAILER A PREDETERMINED DISTANCE FROM THE REAR OF THE VEHICLE;

THE SPACING BETWEEN THE VEHICLE AND THE TRAILER MINIMIZING ADVERSE RADIATION EFFECTS FROM EITHER DEVICE;

AND MEANS TO CONTINUOUSLY DETERMINE AND RECORD THE RESPONSES FROM THE TWO DEVICES.