Resources Contact Us Home
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
Identification of electrical grid phase information for end-points in a grid network
Etching method, etching apparatus, and computer-readable recording medium
Wound dressings
Anthranilic diamide compositions for propagle coating
Manipulation of an alternative respiratory pathway in photo-autotrophs
Method and device for accessing the documentation of an aircraft according to alarms generated therein
Liquid crystal display device with a control mechanism for eliminating images
  Randomly Featured Patents
Extraction with compaction and springback considerations
Fluorescent lamp device
Musical instruments equipped with sustainers
.beta.-cyclodextrin compositions, and use to prevent transmission of sexually transmitted diseases
Glove with aerosol repellent
Implantable patch prosthesis having one or more cusps for improved competency
Enhanced inoculant for soybean cultivation
Liquid crystal display
2,4-pyrimidinediamine compounds and their uses