Fuse Patents (Class 86/22)
  • Patent number: 9108313
    Abstract: A multi-function hand tool is provided. The multi-function hand tool includes a first member and a second member pivotally connected to the first member such that the hand tool is pivotable between an open orientation and a closed orientation. The first member includes a first cutting element and a second cutting element disposed proximal to the first cutting element. The first cutting element has a first cutting blade and the second cutting element has a second cutting blade and a first at least one groove. The second member extends between a proximal end and a distal end. The distal end of the second member includes a third cutting element corresponding to the second cutting element. The third cutting element has a third cutting blade corresponding to the second cutting blade and at least one second groove corresponding to the first at least one groove.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 18, 2015
    Inventor: Anthony Gonzalez
  • Publication number: 20090211433
    Abstract: A fuze mounting assembly for a penetrating weapon configured as a projectable device, the fuze mounting assembly having fasteners, a fuze well and a fuze. The fuze includes an integral bolt flange for securing to the fuze well with the fasteners, wherein an amplification of acceleration of less than 3.0 is satisfied when the penetrating weapon is subjected to impact and penetration shock. Additionally, a projectable device having the fuze is provided. Also, a fuze mounting and a method for mounting a fuze are provided.
    Type: Application
    Filed: May 4, 2009
    Publication date: August 27, 2009
    Inventors: Stanley N. Schwantes, Bradley M. Biggs, Michael A. Johnson
  • Patent number: 6386085
    Abstract: A method for assembling a blast initiation device is provided. The method comprises providing a length of signal transmission line having first and second ends, mounting a tag to the line and mounting a first detonator to the first end of the line wherein all of the steps are each performed at a single operator station by a single operator. Also provided is an apparatus for utilizing the method. The apparatus comprises a tagger device for mounting a tag to a length of signal transmission line having first and second ends. A crimp device is adjacent the tagger device for mounting a first detonator to the first end of the line. A blocker device is adjacent the detonator crimp device for locking a connecting block to the first detonator. The tagger, crimp and blocker devices are spatially arranged adjacent an access position for ease of operation by a single operator. Further provided is a kaizen cell comprising a plurality of workstations.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 14, 2002
    Inventor: Betty A. Garrett
  • Patent number: 5291831
    Abstract: The present invention describes a method of using 1.1 solid rocket propellant in the detonation process for explosives. The use of the 1.1 solid rocket propellant is described as a booster for use in a blasting cap.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: March 8, 1994
    Inventors: Patrick L. Carney, Robert W. Perry
  • Patent number: 5225621
    Abstract: A fuse having a protective jacket is utilized, for example, in petroleum exploration at large depths where the fuse must withstand high temperatures and pressures. The jacket is produced from a shrinkable hose that is shrink-fitted onto the unfinished cord which latter contains an explosive. The hose consists preferably of radiation-crosslinked polyethylene. The use of a shrink-fitted hose eliminates long preparation and curing times for the synthetic resin jacket. The process temperatures required during heat shrinking are no threat to the safety against ignition of the explosive. It is possible in accordance with the process to manufacture, in particular, fuses for high pressures and high ambient temperatures, without any problems.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: July 6, 1993
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Werner Kannengiesser, Karl-Heinz Lulsdorf, Franz-Josef Biermanns, Hans-Heinz Heidbuchel
  • Patent number: 5212341
    Abstract: The invention relates to a method of manufacturing a low-energy shock tube by co-extruding two or more layers simultaneously wherein the inner layer has an adhesive affinity for a powdered reactive material and the outer layer(s) provides abrasion, cut and other environmental resistance to the tube. The wall thickness of the inner layer is less than about 0.3 millimeters. The invention also relates to a low-energy shock tube having such configuration and inner layer thickness.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: May 18, 1993
    Inventors: Alfred M. Osborne, Patrick J. Harder
  • Patent number: 4911058
    Abstract: A depth charge fuze includes a piston in a cylinder sealingly and displaceably guided to actuate a firing mechanism against atmospheric pressure within the cylinder on one side of the piston. The piston is operatively connected to a balancing device for balancing in axial direction. At the other side of the piston there is provided a pressure chamber connected to the surroundings by means of a number of throttling passages with valves depending on the surrounding water pressure for closing up the passages on different levels of water pressure. A shearing means retains the piston in a rest position up to a predetermined maximum pressure drop over the piston.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: March 27, 1990
    Assignee: SA Marine AB
    Inventors: Sten E. O Andersson, Jan T. Olsson, Jan Bjork
  • Patent number: 4371368
    Abstract: In the manufacture of explosive fusecord stranded reinforcing wrapping material is helically spun around an encased fusecord core by advancing the fusecord core axially through at least one supply reel of wrapping material and training at least one strand of wrapping material from the reel around the fusecord core by means of a driven flyer rotating around the fusecord core. Strands of wrapping material may be trained from two or more supply reels preferably mounted in line co-axially with the path of the fusecord core. The method permits faster production than can be achieved by the conventional method wherein the wrapping material is applied from supply reels rotating orbitally around the path of the fusecord core.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 1, 1983
    Assignee: Imperial Chemical Industries Limited
    Inventor: Robert M. Aitken
  • Patent number: 4291623
    Abstract: Disclosed is a binary electroexplosive device including an explosive lead and a pyrotechnic explosive which may be selectively positioned to initiate the explosive lead upon combustion of the pyrotechnic material. The pyrotechnic material is contained in an initiator assembly which may be inserted within a combination socket and housing which also holds the explosive lead facing the pyrotechnic material but spaced therefrom. Insertion of the initiator assembly within the socket completes electrical connections between a power source and a bridgewire within the initiator assembly embedded in the pyrotechnic material. In a particular embodiment shown, the electroexplosive device is utilized as a blasting cap for a well jet perforating gun wherein the gun may be completely assembled with the exception of the insertion of the initiator assembly in the socket.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: September 29, 1981
    Assignee: NL Industries, Inc.
    Inventors: Ralph L. Robinson, David D. Parrish
  • Patent number: 4177732
    Abstract: An explosive fusecord comprising a core of explosive material surrounded by at least two layers of wrapping material, two adjacent layers being bonded together by an intermediate layer of waterproof hot-melt adhesive material which is preferably a blend of polymeric film former and a tackifying resin. The fusecord is especially useful as an energy source for seismic prospecting .
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: December 11, 1979
    Assignee: Imperial Chemical Industries Limited
    Inventor: Daniel Steele
  • Patent number: 3995525
    Abstract: A detonating cord and the manufacture thereof wherein a center yarn disposed in a core of compacted particulate explosive material is treated with silicone oil which migrates through the explosive material and renders the material water resistant.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: December 7, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Joseph Potter Blair
  • Patent number: 3981222
    Abstract: 1. A method of making a time delay fuse comprising the steps of overlaying a fuse strip consisting essentially of a paper formed of non-combustible insulating fibers filled with a combustible compositon which evolves substantially no gas on burning with a backing strip wider than said fuse strip consisting essentially of a paper formed from non-combustible insulating fibers, both ends of said fuse strip extending beyond and normal to said backing strip, winding said overlaid fuse strip in a flat spiral around the circumference of a cylindrical core formed from non-combustible insulating fibers to form a cylindrical body having said both fuse strip ends exposed on the surface of said core while maintaining a high water content in said fuse strip, backing strip and core, axially compressing said body to form a compact, and drying said compact.
    Type: Grant
    Filed: March 31, 1964
    Date of Patent: September 21, 1976
    Assignee: Catalyst Research Corporation
    Inventor: Donald E. Bowman
  • Patent number: 3945320
    Abstract: A water-resistant explosive fuse-cord having water-soluble or water-swellable macromolecular material adjacent to textile material surrounding the explosive core.
    Type: Grant
    Filed: June 14, 1974
    Date of Patent: March 23, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Andrew Gibson, Trevor John Turner