Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/4.57
Name: Boring or penetrating the earth > Boring with explosion in inaccessible hole > Projectile forms bore
Description: Subject matter comprising an apparatus or process for firing a missile.










Sub-classes under this class:

Class Number Class Name Patents
175/4.58 With means to initially restrain projectile for pressure build-up 5
175/4.59 With means to prevent preliminary bore fluid contact 5


Patents under this class:

Patent Number Title Of Patent Date Issued
7942481 Rock drill and method of breaking rock May. 17, 2011
7896104 Device and method for explosive drilling Mar. 1, 2011
6978848 Method and apparatus for penetrating subsurface formations Dec. 27, 2005
6591911 Multi-directional gun carrier method and apparatus Jul. 15, 2003
6523449 Perforating gun Feb. 25, 2003
6000479 Slimhole drill system Dec. 14, 1999
5633475 Circulation shaped charge May. 27, 1997
5168939 Electromagnetically accelerated impact oil well drill Dec. 8, 1992
4997047 High speed electromagnetically accelerated earth drill Mar. 5, 1991
4951744 Angularly shaped unitary structured base strip comprised of a specific material adapted for phasing charges in a perforating gun Aug. 28, 1990
4909152 Cartridge for the expulsion of liquids under pressure Mar. 20, 1990
4790383 Method and apparatus for multi-zone casing perforation Dec. 13, 1988
4638712 Bullet perforating apparatus, gun assembly and barrel Jan. 27, 1987
4419935 Explosive charging apparatus for charging explosive pellets to a bore in a rock Dec. 13, 1983
4220212 Apparatus for monitoring the operation of well bore guns Sep. 2, 1980
4193460 Perforating gun with paired shaped charger vertically spaced Mar. 18, 1980
4106574 Method for establishing high permeability flow path between boreholes Aug. 15, 1978
4099567 Generating medium BTU gas from coal in situ Jul. 11, 1978











 
 
  Recently Added Patents
Protective circuit board and battery pack using the same
Electrical conduit containing a fire-resisting thermoplastic composition
Method of transmitting data using spatial multiplexing
Device with a floating head having a heater element
Compositions for inhibiting NADPH oxidase activity
Simulating non power of two texture behavior
Binder for secondary battery providing excellent adhesion strength and cycle property
  Randomly Featured Patents
Interactive book
Method and apparatus to monitor patients and treat with intraosseous fluids
Method and system for monitoring environmental conditions
Reversible crosslinked polymers, benzylic hydroxl crosslinkers and method
Rear masking device for a motor vehicle, and associated rear assembly
Catalytic composite and process for use
Use of anti-CD45 leukocyte antigen antibodies for immunomodulation
Apparatus and system for controlling ion ribbon beam uniformity in an ion implanter
Stop in particular for the slide block in a guide track
XY table