John David Donovan

US Patent:

6354181, Mar 12, 2002

Filed:

Dec 9, 1999

Appl. No.:

09/457976

Inventors:

John L. Donovan - Danvers IL 61732

International Classification:

F42B 3300

US Classification:

86 50, 110237, 588202

Abstract:

An apparatus and method for the destruction of terrorist weapons, including explosives chemical and biological agents, by detonation in an enclosed double-walled steel explosion chamber having its walls, access door and floor filled with granular shock damping material. The chamber is vented through orifices into vent pipes which converge in a manifold which exhausts into an expansion tank or scrubber for cooling, testing, and environmental treatment of the explosion products. A weapon to be destroyed is placed into the chamber with a donor explosive charge and held in place by a disintegratable string hammock, along with one or more plastic polymer film bags containing water. After closing the access door, the donor charge is detonated by an electrical detonation means. For use in destroying known or suspected chemical or biological weapons the donor charge is augmented with an oxidizing material such as potassium nitrate, and the resulting fireball is enhanced by powdered metal such as aluminum, to achieve an instantaneous pressure of 100 kilobars and instantaneous temperature of 3,000 degrees Celsius.

US Patent:

6647851, Nov 18, 2003

Filed:

Jan 11, 2002

Appl. No.:

09/683512

Inventors:

John Donovan - Danvers IL

Assignee:

DeMil International, Inc. - Englewood CO

International Classification:

F42B 3300

US Classification:

86 50, 588202

Abstract:

A method of suppressing shrapnel ejection inherent with fragmentary and shrapnel munition destruction. The present invention utilizes a method of imploding an initiating explosive onto the munition device whereby the munition device is exploded. The method has the counterbalancing effect between the explosion and the implosion, thus controlling and drastically decreasing the quantity, velocity, and kinetic energy of the resultant shrapnel ejection. An alternate embodiment of the present invention utilizes a combination of a cylindrical container with the wrapped munition device. The munition device to be destroyed is wrapped with flexible explosive material and placed into the cylindrical container and the resultant void space between the container walls and the munition is filled with pourable or fluid explosive material. Upon detonation of the flexible explosive material and fluid explosive material, an implosion and simultaneous chain reaction occurs whereby detonating the munition device itself. The resultant implosion substantially destroys the munition device and negates the need for any further manual dismantling.

US Patent:

6705242, Mar 16, 2004

Filed:

Jan 8, 2002

Appl. No.:

09/683495

Inventors:

John Donovan - Danvers IL

Assignee:

CH2M Hill Constructors, Inc. - Englewood CO

International Classification:

F23M 700

US Classification:

110341, 110173 R, 110181, 588 1

Abstract:

A method and apparatus to hermetically seal openings in an explosion suppression chamber. The present invention utilizes an air lock device to ensure that, in the event toxins are released from the primary explosion chamber opening closing means, the toxins are properly handled and are not inadvertently released into the atmosphere. The preferred embodiment of the present invention uses negative pressure to vacuum the entrained air within the airlock cavity subsequent to an explosion. An alternate embodiment of the present invention uses positive pressure within the air lock cavity to force air through integral filter membranes.

US Patent:

7418895, Sep 2, 2008

Filed:

Dec 23, 2003

Appl. No.:

10/744703

Inventors:

John L. Donovan - Danvers IL, US
Jay M. Quimby - Parsippany NJ, US
McRea B. Willmert - Wilsonville OR, US

Assignee:

DeMil International, Inc. - Englewood CO

International Classification:

F42B 33/00

US Classification:

86 50, 588403, 588900

Abstract:

Apparatus and methods are provided for purging an airlock cavity created between the airlock access door and the primary explosion chamber opening sealing mechanism. According to one embodiment of the present invention, an airlock device is used to ensure that, in the event toxins are released from the primary explosion chamber opening sealing means, the toxins are properly handled and are not inadvertently released into the atmosphere. In one embodiment, negative pressure is used to vacuum the entrained air within the airlock cavity subsequent to an explosion. To facilitate the sweeping and exhausting of the cavity, an orifice in the access door may be operable to allow the flow of ambient air through the airlock access door.

US Patent:

20030126976, Jul 10, 2003

Filed:

Jan 8, 2002

Appl. No.:

09/683492

Inventors:

John Donovan - Danvers IL, US

International Classification:

F42B033/00

US Classification:

086/050000

Abstract:

A method and apparatus to protect the interior surfaces of an explosion suppression and containment chamber. The present invention uses a plurality of modular armor tile plates fixedly attached to the interior surfaces of the chamber. The present invention also uses a shield armor plate to protect all interior exhaust orifices from potential shrapnel damage.

US Patent:

20030129025, Jul 10, 2003

Filed:

Jan 8, 2002

Appl. No.:

09/683494

Inventors:

John Donovan - Danvers IL, US

International Classification:

B23K009/09
B23K009/23
B23K009/235

US Classification:

403/400000, 228/135000

Abstract:

A method and apparatus for fixedly attaching modular tiles. The present invention uses a combination of a surface to be covered, a modular tile, a mounting plate, a peg and a wedge. Alternately, the present invention can also be used without the mounting plate. The present invention first securely fastens the peg to the surface to be covered. Next, the modular tile, with an aperture matching the peg, is placed over the peg and is seated flush against the surface. Next, the mounting plate, with an aperture matching the peg, is placed over the peg and is seated flush against the modular tile. A wedge is then securely placed into an aperture located on the peg, thus compressing the underlying components and securely locking them in place.

US Patent:

20120198987, Aug 9, 2012

Filed:

Aug 20, 2008

Appl. No.:

12/195178

Inventors:

John L. Donovan - Danvers IL, US
Jay M. Quimby - Parsippany NJ, US
McRea B. Willmert - Wilsonville OR, US

International Classification:

F42D 5/04
E06B 7/16
F42B 33/00

US Classification:

86 50, 588403, 49 70

Abstract:

Apparatus and methods are provided for purging an airlock cavity created between the airlock access door and the primary explosion chamber opening sealing mechanism. According to one embodiment of the present invention, an airlock device is used to ensure that, in the event toxins are released from the primary explosion chamber opening sealing means, the toxins are properly handled and are not inadvertently released into the atmosphere. In one embodiment, negative pressure is used to vacuum the entrained air within the airlock cavity subsequent to an explosion. To facilitate the sweeping and exhausting of the cavity, an orifice in the access door may be operable to allow the flow of ambient air through the airlock access door.

US Patent:

40302199, Jun 21, 1977

Filed:

Jun 1, 1976

Appl. No.:

5/688821

Inventors:

John E. Donovan - Skokie IL

Assignee:

Package Exhibit Programs, Inc. - Niles IL

International Classification:

G09F 1300

US Classification:

40130R

Abstract:

A portable display apparatus is herein disclosed. The portable display apparatus is composed of a plurality of rectangular skeletal frames. Each rectangular skeletal frame of said plurality includes a horizontal hinge, adapted to enable said frame to fold vertically. Each rectangular skeletal frame of said plurality is identical to all other rectangular skeletal frames of said plurality. Each of said frames includes a plurality of opposite vertical members. Each of said vertical members is identical to all other vertical members. Each of said vertical members has a connector portion, and a track portion. Each of said rectangular skeletal frames is adapted to be bolted to other rectangular skeletal frames in either a fixed or pivotal relationship at the connector portions of the vertical members. Each of the rectangular skeletal frames is also adapted to be hingedly connected to the other rectangular skeletal frames. The track portions are adapted to receive a display panel within track portions.

Address:

1218 Broad Crk Rd, Bloomington, IL 61704

Phone:

(309)8387175

VIN:

1N4AA5AP6CC861461

Make:

NISSAN

Model:

MAXIMA

Year:

2012