Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/290
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > With latch
Description: Apparatus combined with a movable member which engages the laterally movable cutter element to hold it in one position.










Patents under this class:

Patent Number Title Of Patent Date Issued
7730974 Self actuating underreamer Jun. 8, 2010
7370712 Under reamer May. 13, 2008
6929076 Bore hole underreamer having extendible cutting arms Aug. 16, 2005
4091883 Underreaming tool with overriding extended arm retainer May. 30, 1978











 
 
  Recently Added Patents
Terminal device, system and computer readable medium
Transferring a document
Illuminating device
Method and apparatus for sensing an input object relative to a sensing region of an ultrasound sensor device
Layout design defect repair based on inverse lithography and traditional optical proximity correction
Device and method for generating soft tissue contrast images
Memristive junction with intrinsic rectifier
  Randomly Featured Patents
Fork
Electrical pulse generator
Bellows core and method and apparatus for fabrication thereof
Prunus plant named `VSV-1`
CD system utilizing a virtual CD-R
Composition for preventing or treating arteriosclerosis
Fine-particle aggregate emulsion
Embroidering system
Cover to a device for manufacturing tooth substitute
Luminescent materials for a carbon nanotube (CNT) field emission device (FED)