Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/275
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > With shifting mechanism spring biased to operative position > With separate latch
Description: Apparatus combined with a movable member which is separate from the laterally movable cutter element and which engages the cutter element or some part of the resiliently biased mechanism to hold the cutter element in one position.










Sub-classes under this class:

Class Number Class Name Patents
175/276 Frangible or discardable element 6
175/277 Latch holds mechanism retracted 2


Patents under this class:

Patent Number Title Of Patent Date Issued
7703553 Downhole tool having radially extendable members Apr. 27, 2010
4693328 Expandable well drilling tool Sep. 15, 1987











 
 
  Recently Added Patents
Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
Random access point (RAP) formation using intra refreshing technique in video coding
Semiconductor device including multi-chip
Complete context search system
Processing data using information embedded in a data request
Flame-retardant polyamide composition
Techniques to manage communications resources for a multimedia conference event
  Randomly Featured Patents
Stabilizer apparatus for vehicle
Retainer jaw for a quick-locking tool
Device for identifying and locating dental microorganisms
Shoe with interchangeable strap system
Substituted 2-(heteroaryl-2-propenyl)phenols useful as anti-inflammatory agents
Computer system with jog dial function and the user interface scheme thereof
Creating a buffer point-in-time copy relationship for a point-in-time copy function executed to create a point-in-time copy relationship
Method for crushing cell
Process for preparing a polyimide and a composite material containing the same
Automatically generating embroidery designs from a scanned image