Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for placing geophones beneath the surface of the earth










Image Number 4 for United States Patent #5811741.

An apparatus for placing geophones beneath the surface of the earth includes a machine frame that supports an elongated probe rod. The probe rod is dimensioned to reach a selected subterranean earth layer. The rod has upper and lower end portions. A geophone holder is positioned at the lower end of the rod for holding a geophone and its cable. A plurality of drive wheels carried by the frame transport the rod between the upper and lower positions. The drive rollers include at least an opposed pair of upper wheels and an opposed pair of lower wheels. The wheels are loaded with an adjustable spring pusher so that extensive pressure can be applied from the drive wheels to the pipe for gripping and driving the pipe even when muddy. A gear train interconnects all of the driving wheels so that all of the wheels rotate at the same rotational speed. A gear train preferably includes six gears including a pair of upper gears, a pair of lower gears, and a pair of intermediate drive gears. The intermediate drive gears are intermeshed so that a single motor rotates one of the intermediate gears and thereby drives all six of the gears of the drive train.








 
 
  Recently Added Patents
Digital broadcast receiver and method for processing caption thereof
Avalanche photo diode and method of manufacturing the same
Processor engine, integrated circuit and method therefor
Eyeglasses
Semiconductor device manufacturing method and device for same
ZNF217 a new prognostic and predictive biomarker of recurrent invasive and metastatic phenotypes in breast cancer
Phosphoinositide 3-kinase inhibitor with a zinc binding moiety
  Randomly Featured Patents
Induction charging apparatus
Method of compensating the proximity effect in electron beam projection systems
Method and system for automatically detecting morphemes in a task classification system using lattices
Apparatuses for inspecting pogo pins of an electrical die sorting system and a method for performing the same
Vase holder
Methods of growing nickel-manganese oxide single crystals
Cholesteryl carbonates and carbamates of azo dyes
Progress-tracking service
Antiinflammatory pyrazole thioureas
Electronic device and microphone holder therefor