Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Electrically assisted friction stir welding

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NSWCCD

An electrically assisted friction stir welding method and arrangement in which the required downward/pressing force typically exerted on a workpiece is substantially reduced. The method and apparatus involves the creation of a localized heated zone on a workpiece undergoing a welding operation. The localized heated zone is created using a resistive heating circuit running through the friction stir welding tool and the workpiece.

Inventors: 
Ferrando, William A.
Patent Number: 
US8164021
Technical domain: 
Machine Tools
FIle Date: 
2008-03-31
Grant Date: 
2012-04-24
Grant time: 
1,485 days
Grant time percentile rank: 
27
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Watertight closure gasket insertion tool

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NSWCCD

A handheld tool is for facilitating installation of a resilient, elongate, generally rectangle-profiled gasket designed to tightly fit inside and along the partially obstructed perimetric channel of a watertight doorway onboard a marine vessel. As typically embodied, the inventive tool includes a straight handle (e.g., shaft or rod) and a head. The head includes a right-triangle profiled section and an L-shape-profiled section. The handle is perpendicularly connected to the hypotenuse surface of the right-triangle profiled section. The L-shape-profiled section has two interior surfaces forming an interior right angle that faces away from the hypotenuse surface. The bisector of the interior right angle is parallel to the handle and perpendicular to the hypotenuse surface. A user holds the inventive tool by the handle, controls the gasket so that a rectangular corner portion of the gasket fits inside the L-shape-profiled section's interior right angle, and forcefully manipulates the gasket into the channel.

Inventors: 
Redfern, Robert C.; Pappas, Constantine V.; Ball, Ronnie L.
Patent Number: 
US8950755
Technical domain: 
Machine Tools
FIle Date: 
2011-09-15
Grant Date: 
2015-02-10
Grant time: 
1,244 days
Grant time percentile rank: 
22
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Activated vapor treatment for neutralizing warfare agents

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AECBC

Hydrogen peroxide is vaporized (20) and mixed (30) with ammonia gas in a ratio between 1:1 and 1:0.0001. The peroxide and ammonia vapor mixture are conveyed to a treatment area (10) to neutralize V-type, H-type, or G-type chemical agents, pathogens, biotoxins, spores, prions, and the lip-,e. The ammonia provides the primary deactivating agent for G-type agents with the peroxide acting as an accelerator. The peroxide acts as the primary agent for deactivating V-type and H-type agents, pathogens, biotoxins, spores, and prions. The ammonia acts as an accelerator in at least some of these peroxide deactivation reactions.

Inventors: 
Mcvey, Iain F.; Schwartz, Lewis I.; Centanni, Michael A.; Wagner, George W.
Patent Number: 
US7629500
Technical domain: 
Machine Tools
FIle Date: 
2004-04-23
Grant Date: 
2009-12-08
Grant time: 
2,055 days
Grant time percentile rank: 
37
Claim count percentile rank: 
11
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Chemical and biological warfare decontaminating solution using peracids and germinants in microemulsions, process and product thereof

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NSWCDD

A microemulsion composition having a solid source of peroxycarboxylic acid and germinant is used for chemical and biological warfare decontamination. A process for decontaminating uses the microemulsion composition.

Inventors: 
Brown, Jerry S.; Hodge, Richard C.; Mccabe, Margaret A.; Mcgrady, Karen A.; Schilling, Amanda S.
Patent Number: 
US7064241
Technical domain: 
Machine Tools
FIle Date: 
2003-09-16
Grant Date: 
2006-06-20
Grant time: 
1,008 days
Grant time percentile rank: 
18
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Activated vapor treatment for neutralizing warfare agents

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AECBC

Hydrogen peroxide is vaporized (20) and mixed (30) with ammonia gas in a ratio between 1:1 and 1:0.0001. The peroxide and ammonia vapor mixture are conveyed to a treatment area (10) to neutralize V-type, H-type, or G-type chemical agents, pathogens, biotoxins, spores, prions, and the like. The ammonia provides the primary deactivating agent for G-type agents with the peroxide acting as an accelerator. The peroxide acts as the primary agent for deactivating V-type and H-type agents, pathogens, biotoxins, spores, and prions. The ammonia acts as an accelerator in at least some of these peroxide deactivation reactions.

Inventors: 
Mcvey, Iain F.; Schwartz, Lewis I.; Centanni, Michael A.; Wagner, George W.
Patent Number: 
US7651667
Technical domain: 
Machine Tools
FIle Date: 
2006-04-10
Grant Date: 
2010-01-26
Grant time: 
1,387 days
Grant time percentile rank: 
25
Claim count percentile rank: 
2
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY; STERIS CORP

Nanotubular titania for decontamination of chemical warfare agents and toxic industrial chemicals

Patent image
AECBC

The invention relates to methods and products enabling decontamination of chemical warfare agents and/or toxic industrial chemicals. More particularly, the invention pertains to improvements of surface decontamination processes using novel sorbents such as nanotubular titania.

Inventors: 
Wagner, George W.; Wu, Yue; Kleinhammes, Alfred
Patent Number: 
US8546313
Technical domain: 
Machine Tools
FIle Date: 
2012-11-26
Grant Date: 
2013-10-01
Grant time: 
309 days
Grant time percentile rank: 
5
Claim count percentile rank: 
2
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Activated vapor treatment for neutralizing warfare agents

Patent image
AECBC

Hydrogen peroxide is vaporized (20) and mixed (30) with ammonia gas in a ratio between 1:1 and 1:0.0001. The peroxide and ammonia vapor mixture are conveyed to a treatment area (10) to neutralize V-type, H-type, or G-type chemical agents, pathogens, biotoxins, spores, prions, and the like. The ammonia provides the primary deactivating agent for G-type agents with the peroxide acting as an accelerator. The peroxide acts as the primary agent for deactivating V-type and H-type agents, pathogens, biotoxins, spores, and prions. The ammonia acts as an accelerator in at least some of these peroxide deactivation reactions.

Inventors: 
Mcvey, Iain F.; Schwartz, Lewis I.; Centanni, Michael A.; Wagner, George W.
Patent Number: 
US7102052
Technical domain: 
Machine Tools
FIle Date: 
2003-04-24
Grant Date: 
2006-09-05
Grant time: 
1,230 days
Grant time percentile rank: 
22
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
2
Assignee: 
US ARMY

Non-corrosive, non-caustic, non-flammable, catalyst-based decontaminant formulation

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AECBC

The present invention relates to a near-universal non-corrosive, non-toxic, environmentally safe and user friendly decontaminant capable of detoxifying organophosphorus (OP)-based G-type, V-type neurotoxic chemical warfare, sulfur-mustard, and related OP based hazardous industrial materials in a dry powder form. The decontaminant contains OPH enzyme, OPAA enzyme, DFPase enzyme, dehalogenase enzyme, quaternary ammonium salt, a pH control reagent, a fire-fighting agent, and a foaming agent. The decontaminant is mixed with available water for use.

Inventors: 
Cheng, Tu-chen; Defrank, Joseph J.; Harvey, Steven P.; Rastogi, Vipin K.
Patent Number: 
US7723558
Technical domain: 
Machine Tools
FIle Date: 
2007-06-05
Grant Date: 
2010-05-25
Grant time: 
1,085 days
Grant time percentile rank: 
19
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Generation of residue-free decontaminant using hydrogen peroxide, ammonia, and carbon dioxide

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AECBC

A method for in situ generation of a decontamination solution adapted to decontaminate mustard agents by oxidation and nerve agents by perhydrolysis, comprising the steps of generating a stable precursor solution of aqueous NH4HCO3 by bubbling CO2 and NH3 into a container of water; and adding a peroxide component to the precursor solution. The step of bubbling CO2 into a container of water may be accomplished by bubbling fossil fuel engine exhaust including CO2 directly into the container of water.

Inventors: 
Wagner, George W.
Patent Number: 
US7838476
Technical domain: 
Machine Tools
FIle Date: 
2008-09-26
Grant Date: 
2010-11-23
Grant time: 
788 days
Grant time percentile rank: 
14
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA

Apparatus for deactivating a pathogenic chemical agent

Patent image
AECBC

Hydrogen peroxide is vaporized (20) and mixed (30) with ammonia gas in a ratio between 1:1 and 1:0.0001. The peroxide and ammonia vapor mixture are conveyed to a treatment area (10) to neutralize V-type, H-type, or G-type chemical agents, pathogens, biotoxins, spores, prions, and the lip-,e. The ammonia provides the primary deactivating agent for G-type agents with the peroxide acting as an accelerator. The peroxide acts as the primary agent for deactivating V-type and H-type agents, pathogens, biotoxins, spores, and prions. The ammonia acts as an accelerator in at least some of these peroxide deactivation reactions.

Inventors: 
Mcvey, Iain F.; Schwartz, Lewis I.; Centanni, Michael A.; Wagner, George W.
Patent Number: 
US8025848
Technical domain: 
Machine Tools
FIle Date: 
2009-07-08
Grant Date: 
2011-09-27
Grant time: 
811 days
Grant time percentile rank: 
14
Claim count percentile rank: 
5
Citations percentile rank: 
3
'Cited by' percentile rank: 
1
Assignee: 
STERIS CORP; US ARMY

Enzymatic decontamination

Patent image
AECBC

Compositions and methods for enzymatic decontamination by inactivation of Hazardous agents are provided. Hazardous agents of microbial and chemical origin can be neutralized by H2O2. The methods described herein provide for enzymatic production of H2O2 in situ using oxidoreductase enzymes that use oxygen as an acceptor and their alcohol substrates. The enzymatically produced H2O2 and corresponding aldehydes have potent antimicrobial properties. The enzymatically produced H2O2 also can detoxify chemical agents in situ. The decontaminating power of the oxidoreductase enzymes that use oxygen as an acceptor may be amplified by addition of reagents, such as acetyl donors or base catalysts that, in the presence of H2O2, yield peroxy acid derivatives and hydroperoxy anions. Such derivatives can neutralize biological and chemical agents, thus providing a broadly applicable decontamination method. In addition, catalytic production of H2O2 in situ results in controlled synthesis of decontamination reagents at their point of use, mitigating the need to store, transport and dispose of hydrogen peroxide solutions in the field.

Inventors: 
Turetsky, Abraham L.; Pawlowski, David R.; Brickhouse, Mark D.
Patent Number: 
US8080404
Technical domain: 
Machine Tools
FIle Date: 
2006-01-09
Grant Date: 
2011-12-20
Grant time: 
2,171 days
Grant time percentile rank: 
40
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

System for decontamination of chemical weapons agents using solid sorbent with liquid decontamination solution

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AECBC

A chemical warfare (CW) agent decontamination system and method for decontaminated surfaces contaminated by CW agents. The system includes both solid particles and liquid solution in admixture such that the solid particles absorb the liquid decontamination material. The method of decontaminating surfaces contaminated with CW agents includes contacting the CW agent with a sufficient amount of a solid-particle sorbent for a sufficient time and under conditions which are sufficient to produce a reaction product having less toxicity than the CW agent. CW agents to be decontaminated include the nerve agents VX and G-type agents, and mustard agent HD. The system is non-toxic and has a reduced environmental impact as compared to the previously available decontamination systems and solutions.

Inventors: 
Waysbort, Daniel; Creasy, William R.; Durst, Dupont H.; Mcgarvey, David J.
Patent Number: 
US8278495
Technical domain: 
Machine Tools
FIle Date: 
2008-02-01
Grant Date: 
2012-10-02
Grant time: 
1,705 days
Grant time percentile rank: 
31
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA

Nanotubular titania for decontamination of chemical warfare agents and toxic industial chemicals

Patent image
AECBC

The invention relates to methods and products enabling decontamination of chemical warfare agents and/or toxic industrial chemicals. More particularly, the invention pertains to improvements of surface decontamination processes using novel sorbents such as nanotubular titania.

Inventors: 
Wagner, George W.; Wu, Yue; Kleinhammes, Alfred
Patent Number: 
US8317931
Technical domain: 
Machine Tools
FIle Date: 
2007-01-30
Grant Date: 
2012-11-27
Grant time: 
2,128 days
Grant time percentile rank: 
39
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA

Zirconium hydroxide for decontaminating toxic agents

Patent image
AECBC

The present invention relates to a process for decontaminating surfaces contaminated with toxic agents. The process comprises contacting a contaminated surface with a sorbent comprised of zirconium hydroxide onto which at least one reactive moiety is optionally impregnated.

Inventors: 
Peterson, Gregory W.; Rossin, Joseph A.; Wagner, George W.
Patent Number: 
US8530719
Technical domain: 
Machine Tools
FIle Date: 
2010-11-02
Grant Date: 
2013-09-10
Grant time: 
1,043 days
Grant time percentile rank: 
19
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA

Chemical agent decontamination composition comprising a perfluorinated alkyl bromide

Patent image
AMRMC

A composition and methods of use for the decontamination of chemical agents, including chemical warfare agents. The decontamination composition is nontoxic, nonflammable and non-corrosive and includes an effective amount of a perfluorinated alkyl bromide or reactive perfluorinated alkyl bromide. The decontamination composition may include an oxidizer and a solvent.

Inventors: 
Johnston, David S.; Platoff, Gennady E.; Baskin, Steven I.; Logan, Thomas P.
Patent Number: 
US7371714
Technical domain: 
Machine Tools
FIle Date: 
2006-06-22
Grant Date: 
2008-05-13
Grant time: 
691 days
Grant time percentile rank: 
12
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Active topical skin protectants containing amines, polyalkenimines and /or derivatives

Patent image
AMRMC

A topical skin protectant formulation containing a barrier cream and an active moiety for protecting warfighters and civilians against all types of harmful chemicals, specifically chemical warfare agents (CWA). The active moiety is an amine, polyalkenimines and/or derivatives. The topical skin protectant offers a barrier property and an active moiety that serves to neutralize chemical warfare agents into less toxic agents.

Inventors: 
Braue Jr., Ernest H.; Hobson, Stephen T.; Boecker, Joseph D.; Smith, Bryan M.
Patent Number: 
US7976832
Technical domain: 
Machine Tools
FIle Date: 
2003-05-05
Grant Date: 
2011-07-12
Grant time: 
2,990 days
Grant time percentile rank: 
55
Claim count percentile rank: 
2
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
UNIV CENTRAL FLORIDA

Compressed elastomer process for autofrettage and lining tubes

Patent image
ARL

An inventive process is provided for creating residual compressive stress at a surface of a structure without resort to custom mandrels and dangerous high-pressure fluids. The inventive process yields autofrettage of a structure such as a tube, gun barrel and the like, the structure having an outer surface and an inner surface.

Inventors: 
Carter, Robert Hansbrough; Derosset, William Steinle
Patent Number: 
US8056279
Technical domain: 
Machine Tools
FIle Date: 
2010-09-29
Grant Date: 
2011-11-15
Grant time: 
412 days
Grant time percentile rank: 
7
Claim count percentile rank: 
6
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Compressed elastomer process for autofrettage and lining tubes

Patent image
ARL

An inventive process is provided for creating residual compressive stress at a surface of a structure without resort to custom mandrels and dangerous high-pressure fluids. The inventive process yields autofrettage of a structure such as a tube, gun barrel and the like, the structure having an outer surface and an inner surface.

Inventors: 
Carter, Robert Hansbrough; Derosset, William Steinle
Patent Number: 
US8418392
Technical domain: 
Machine Tools
FIle Date: 
2008-07-21
Grant Date: 
2013-04-16
Grant time: 
1,730 days
Grant time percentile rank: 
31
Claim count percentile rank: 
7
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY

Fueldraulic actuator installation and removal tool

Patent image
NAWCAD

A fueldraulic actuator installation and removal tool that includes a base, an actuator chassis, and at least one articulating arm. The actuator chassis is able to communicate with a jet fueldraulic actuator located in a jet engine bay such that the actuator can be removed from the jet engine bay. The actuator chassis is connectable to the actuator at three predetermined points on the actuator. The at least one articulating arm, which is attached to the base, communicates with the actuator chassis such that the actuator chassis can be moved forward (frontwards) and backwards and left and right, and oriented at different inclines and adjusted to allow the actuator chassis to align and interface with the jet fueldraulic actuator.

Inventors: 
Thull, Zachariah
Patent Number: 
US9108310
Technical domain: 
Machine Tools
FIle Date: 
2012-01-13
Grant Date: 
2015-08-18
Grant time: 
1,313 days
Grant time percentile rank: 
24
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Catalytic surfaces for active protection from toxins

Patent image
NRL

A bioactive catalytic material is disclosed for providing protection from chemical exposure. The material is composed of enzymes immobilized within polyelectrolyte multilayers and a polymerizable end-capping layer to render stability to enzymes. Also disclosed is the related method for making a bioactive catalytic material and their deposition on substrates of varying size, shape and flexibility for providing active protection from chemical exposure.

Inventors: 
Singh, Alok; Lee, Yongwoo; Stanish, Ivan; Chang, Eddie; Dressick, Walter J.
Patent Number: 
US7067294
Technical domain: 
Machine Tools
FIle Date: 
2003-12-23
Grant Date: 
2006-06-27
Grant time: 
917 days
Grant time percentile rank: 
16
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
2
Assignee: 
US NAVY

Fabrication of 3-dimensional micro-assemblies

Patent image
NRL

Disclosed herein is a method of: depositing an actuating material onto a bendable component; and applying heat or an electromagnetic force to the actuating material, such that the volume of the actuating material changes, causing the component to bend.

Inventors: 
Piqué, Alberto; Mathews, Scott A.; Birnbaum, Andrew J.; Charipar, Nicholas A.
Patent Number: 
US8980380
Technical domain: 
Machine Tools
FIle Date: 
2011-01-13
Grant Date: 
2015-03-17
Grant time: 
1,524 days
Grant time percentile rank: 
28
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Method of making bioactive catalytic material

Patent image
NRL

A bioactive catalytic material is disclosed for providing protection from chemical exposure. The material is composed of enzymes immobilized within polyelectrolyte multilayers and a polymerizable end-capping layer to render stability to enzymes. Also disclosed is the related method for making a bioactive catalytic material and their deposition on substrates of varying size, shape and flexibility for providing active protection from chemical exposure.

Inventors: 
Singh, Alok; Lee, Yongwoo; Stanish, Evan; Chang, Eddie; Dressick, Walter J.
Patent Number: 
US7348169
Technical domain: 
Machine Tools
FIle Date: 
2006-05-04
Grant Date: 
2008-03-25
Grant time: 
691 days
Grant time percentile rank: 
12
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Folding knife having locking portion, clip portion and unsharpened protrusion

Patent image
NRL

A knife comprises a handle and a blade movably attached to the handle and having a sharpened side and an unsharpened side. The sharpened side has a first sharp portion and a second sharp portion. The blade is operable to move from an engaged position to a disengaged position and to move from the disengaged position to the engaged position. When the blade is positioned in the engaged position, the first sharp portion is uncovered by the handle and the second sharp portion is covered by the handle. When the blade is positioned in the disengaged position, the first sharp portion is covered by the handle and the second sharp portion is uncovered by the handle.

Inventors: 
Ruggiero, John V.
Patent Number: 
US7421751
Technical domain: 
Machine Tools
FIle Date: 
2006-08-25
Grant Date: 
2008-09-09
Grant time: 
746 days
Grant time percentile rank: 
13
Claim count percentile rank: 
2
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Sub-micron laser direct write

Patent image
NRL

A method of directing a pulse of laser energy though a workpiece. The workpiece has: a substrate that transmits the laser energy; focusing elements on a surface of the substrate proximal to the laser that focus the laser energy; and a coating on the substrate distal to the laser that absorbs a portion of the laser energy. Each focusing element focuses the laser energy to a point that removes or ablates a portion of the coating from the substrate to produce a hole in the coating.

Inventors: 
Ringeisen, Bradley R.; Othon, Christina M.
Patent Number: 
US8101247
Technical domain: 
Machine Tools
FIle Date: 
2008-06-19
Grant Date: 
2012-01-24
Grant time: 
1,314 days
Grant time percentile rank: 
24
Claim count percentile rank: 
7
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY

Corrugated blast frequency control panel and method

Patent image
NSWCCD

A composite panel includes a ballistic fabric strike surface layer and an underlying structural armor plate layer. The structural armor plate layer is corrugated and includes a multiplicity of traversing ports. The traversing ports have sufficient lateral area to allow explosive blast deformation of the ballistic fabric through the structural armor plate layer. By selecting both relative port traversing void area and corrugation angle an effective projectile blockage is achieved. The composite shield is particularly effective in protecting personnel. Blast frequencies in the 1000 to 3000 Hz Cooper Injury Range component of the blast wave spectrum are attenuated. The panel has projectile shredding properties and has improved structural stability.

Inventors: 
Littlestone, Alyssa A.; Dudt, Philip J.
Patent Number: 
US9228805
Technical domain: 
Machine Tools
FIle Date: 
2015-04-20
Grant Date: 
2016-01-05
Grant time: 
260 days
Grant time percentile rank: 
4
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY