Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/255
Name: Boring or penetrating the earth > With means movable relative to tool to receive, retain, or sever undisturbed core > Core-retaining or severing means > Sliding wedge type (e.g., slips)
Description: Apparatus in which the retaining or severing means is moved toward the longitudinal axis of the core due to wedge like action upon relative bodily longitudinal sliding movement between surfaces on the retaining or severing means and the tool.










Patents under this class:

Patent Number Title Of Patent Date Issued
8598698 Package substrate with an embedded stiffener Dec. 3, 2013
8485280 Core drilling tools with retractably lockable driven latch mechanisms Jul. 16, 2013
7906843 Substrate having a functionally gradient coefficient of thermal expansion Mar. 15, 2011
7737818 Embedded resistor and capacitor circuit and method of fabricating same Jun. 15, 2010
6116358 Core sampler Sep. 12, 2000
4552229 Externally powered core catcher Nov. 12, 1985
4296822 Multipurpose fluid flow assisted downhole tool Oct. 27, 1981
3964555 Apparatus for obtaining earth cores Jun. 22, 1976











 
 
  Recently Added Patents
Markers of acute myeloid leukemia stem cells
6-O-substituted benzoxazole and benzothiazole compounds and methods of inhibiting CSF-1R signaling
Error recovery storage along a memory string
Methods and apparatus for adapting network characteristics in telecommunications systems
Method and apparatus for radio antenna frequency tuning
Sign language keyboard and sign language searching apparatus using the same
Depth estimation apparatus and method
  Randomly Featured Patents
Storage case for DVD's and compact discs
Laryngoscope blade
System and method for failsafe display of full screen high frequency images on a flat panel without a frame buffer
Device for producing an electrical pulse in response to passage of a magnetically conducting member through an air gap
Benzo(B)thiophenes
High voltage coil winding machine
Analytical or monitoring apparatus and method
Water-decomposable non-woven fabric of regenerated cellulose fibers of different lengths
Sleep and environment control method and system
Cleansing foam agent comprising a polyglycerin monocarboxylate and hinokitiol bactericide