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
Geographically self-labeling access points
Social community generated answer system with collaboration constraints
Acoustic reconfiguration devices and methods
Signal processing apparatus, display apparatus having the same, and signal processing method
Bundled flexible cable with water resistant structure
Reuse of static image data from prior image frames to reduce rasterization requirements
Login security with short messaging
  Randomly Featured Patents
Standard and track shelving systems
Anti-shake apparatus
Fluid dispenser
Method to align mask patterns
Heating mantle with a porous radiation wall
Method of manufacturing non-volatile semiconductor memory device having reduced electrical resistance of a source diffusion layer
Environmental enclosure for a camera
Solid golf ball
Device for shutting off suction generated through the single tubes of dental surgery equipment
Sound lighting spectacles