Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/254
Name: Boring or penetrating the earth > With means movable relative to tool to receive, retain, or sever undisturbed core > Core-retaining or severing means > Mounted on transverse pivot
Description: Apparatus in which the retaining or severing means moves toward the longitudinal axis of the core by swinging movement about a pivot axis which is substantially transverse to the longitudinal axis of the core.










Patents under this class:

Patent Number Title Of Patent Date Issued
6009960 Coring tool Jan. 4, 2000
5487433 Core separator assembly Jan. 30, 1996
5411106 Method and apparatus for acquiring and identifying multiple sidewall core samples May. 2, 1995
5146999 Shoe assembly with catcher for coring Sep. 15, 1992
4930587 Coring tool Jun. 5, 1990
4848484 Soil sample extraction tool Jul. 18, 1989
4059155 Junk basket and method of removing foreign material from a well Nov. 22, 1977











 
 
  Recently Added Patents
Digital photographing apparatus and control method for evaluating validity of an auto-focus operation
Display screen with graphical user interface
Stackable clothes drying apparatus
Apparatus and method for phase synchronization in radio frequency transmitters
Apparatus and method for efficient transmission of acknowledgements
Semiconductor device
Solid-state imaging apparatus
  Randomly Featured Patents
Reclosable packaging having slider-operated string zipper
Power supply system for vehicle and electrically-powered vehicle having the power supply system
Light fixture
Fire extinguishing apparatus
Contact identifier for message types
Easy-to-wear footwear
Package for containing tubular products, such as vials and the like
Apparatus and method for sanitizing fruits
Portable radio
Ash receptacle