## US Patents involving "reactionless" propulsion schemes

Updated 22 January with new site links, Roger now has the IBM womplex links included in with the patents that are new enough to be on line, thanks Roger!

LIST jump direct
This listing of patents was selected from a website that I found while doing research.

The extensive Spacedrive list (Link to Rogers site) is obviously a prodigious effort on the part of the author, and includes inertial propulsion devices, electro-static drives, and some magnetic drives I won't even pretend to understand, from all around the world. Roger's site has patent covers on line and he is offering full patents also, a favorites page!

I have excerpted the US patents only, as the entire list is way too much for the hard drive space I rent, and is frankly enough to let you know that the Patent office at least believes in reactionless propulsion!

Maintained by Roger D. Cook, his e-mail is rdcook@worldnet.att.net POB 90767, Nasville, TN 37209-0767 USA

If you find this site as useful as I have, be sure to mail him and thank him, little enough pay for the time, effort and expense that he has put out to help us all get closer to a vacation in the outer colonies.

http://patent.womplex.ibm.com is the IBM search list for patents, a useful and fun place to explore if you have a penchant for multi-page run on sentences of gobbeldygook said means and stuff.

Those devices that did return with the number search were rather awkward devices that involved gears, recipricatory motion, etc., none of which would be useable as a space propulsion device (in my opinion).

Another useful resource for strange and wonderful inventions research is the Patent Office itself at http://www.uspto.gov/

Thanks Roger, I would have found it eventually, but a person can only do so much, and helpful reminders and 'oh, I know that one!' keep us all out of the abyss!.

If you are contemplating patenting any device intended for air or space use, and have ever worked for the government, or any company that has (or is even thinking about it), then you will need to look at 42 USC Sec. 2457! Contains link to Cornell University's US Code site, another good resource!

The following are US patents involving inertial propulsion or other "reactionless" drive means. Any thing below 3,930,000 or thereabouts will not be online yet according to the nice guy at the patent office help mail service.

UNITED STATES (US)
------------------

    5,488,877   Lieurance, Richard L. (O2/O6/96) Centrifugal Inertia Drive

    5,473,957   Navarro, Thomas L. (12/12/95) System for generating controllable
                reference enviroment and steerable translational force, etc.

    5,427,330   Shimshi, Ezra (O6/27/95) Sphereroll

    5,410,198   Butka, Kemal (O4/25/95) Propulsion System

    5,388,470   Marsh, Richard O., Jr (O2/14/95) Centrifugal force drive machine,

    5,388,469   Woltering, Howard M. (O2/14/95) Rotating eccentric weights
                vibrator system

    5,335,561   Harvey, James (O8/O9/94) Impulse converter

    5,334,O60   Butka, Kemal (O8/O2/94) Propulsion System

    5,313,851   Hull, Harold L & Joslin, Donald E. (O5/24/94) Reusable mass
                propulsion system

    5,197,279   Taylor, James R. (O3/3O/93) Electromagnetic energy propulsion
                engine

    5,182,958   Black, James W. (O2/O2/93) Non-linear propulsion and
                energy conversion system

    5,167,163   McMahon, John C. (12/O1/92) Energy transfer device

    5,156,058   Bristow, Theodore R., Jr. (1O/2O/92) Method and apparatus for
                converting rotary motion to lineal motion

    5,15O,626   Isaacson, J. D. & Navarro, T. L. (O9/29/92) Translational Force
                Generator

    5,142,861   Schlicher, Rex L., et al (O9/O1/92) Nonlinear Electromagnetic
                Propulsion System And Method

    5,111,087   Butka, Kemal (O5/O5/92) Propulsion System

    5,090,260   Delroy, M. S. & Delroy M. (O2/25/92) Gyrostat Propulsion System

    5,054,331   Rodgers, A. T. (1O/O8/91) Controllable Gyroscopic Propulsion
                Apparatus

    5,042,313   Montalbano, Paul J. (O8/27/91) Conversion of Rotational Output
                to Linear Force - a Transmission

    5,024,112   Kidd, Alexander D. (O6/18/91) Gyroscopic Apparatus

    4,991,453   Mason, Lyle M. (O2/12/91) Centripedal Device For Concentrating
                Centrifugal Force

    4,967,983   Motts, Brian C. (11/O6/9O) Airship

    4,891,600   Cox, James E. (O1/O2/9O) Dipole accelerating means and
                method

    4,884,465   Zachystal, George J. (12/O5/89) Centripedal Device for
                Concentrating Centrifugal Force

    4,856,358   Montalbano, Paul J. (O8/15/89) Conversion Of Rotational
                Output To Linear Force

    4,801,111   Rogers, Charles E.  et al (O1/31/89) System For Propulsion
                And Positioning Of A Transitory Object

    4,788,882   Fulop, Charles (12/O6/88) Flywheel

    4,784,006   Kethley, Lancelot I. (11/15/88) Gyroscopic Propulsion
                Device

    4,770,063   Mundo, James D. (O9/13/88) Universal Propulsion Powerplant
                And Impulse Drive Unit For Self-Propelled Vehicles

    4,744,259   Peterson, Oscar F. A. (O5/17/88) Apparatus For Producing A
                Directional Unit Force

    4,726,241   Melnick, Harry S. (O2/23/88) Continuous Force And Impact
                Generator

    4,712,439   North, Henry (12/15/87) Apparatus For Producing A Force

    4,674,583   Peppiatt, Alvin C., et al (O6/23/87) Impulse Drive

    4,663,932   Cox, James E. (O5/12/87) Dipolar Force Field Propulsion

    4,631,971   Thornson, Brandson R. (12/3O/86) Apparatus For Developing A
                Propulsive Force

    4,579,011   Dobos, Elmer M. (O3/O1/86) Propulsion Apparatus

    4,577,520   Colla, Joseph (O3/25/86) Mechanical Propulsion System

    4,479,396   de Weaver, Fred, III (1O/3O/84) Propulsion System

    4,409,856   de Weaver, Fred, III (1O/18/83) Propulsion System

    4,347,752   Dehen, Frederick L. (O9/O7/82) Apparatus For Converting Rotary
                Motion To A Rectilinear Force

    4,261,212   Melnick, Harry S. (O4/14/81) Unidirectional Force Generator

    4,242,918   Srogi, Ladislaw G. (O1/O6/81) Mechanical Propulsion System

    4,238,968   Cook, Robert L. (12/16/8O) Device For Conversion Of Centrifugal
                Force To Linear Force And Motion

    4,095,460   Cuff, Calvin I. (O6/2O/78) Device For Converting Rotary Motion
                Into Unidirectional Motion

    4,087,064   Knap, George (O5/O2/78) Orbital Propulsion Apparatus

    3,998,107   Cuff, Calvin I. (12/21/76) Device For Converting Rotary Motion
                Into A Unidirectional Linear Motion

    3,979,961   Schnur, Nicholas J. (O9/14/76) Method And Apparatus For
                Propelling An Object By An Unbalanced Centrifugal Force With
                Continous Motion

    3,968,700   Cuff, Calvin I. (O7/13/76) Device For Converting Rotary Motion
                Into A Unidirectional Linear Motion

    3,916,704   Gaberson, Howard A. (11/O4/75) Vibratory Motion

    3,897,692   Lehberger, Arthur N. (O8/O5/75) Centrifugal Propulsion Drive
                And Steering Mechanism

    3,889,543   Mast, Oscar (O6/17/75) Propulsion System

    3,863,510   Benson, Everett H. (O2/O4/75) Inertia Engine

    3,810,394   Novak, Leo J. (O5/14/74) Centrifugal Mechanical Device

    3,807,244   Estrade, Fernand (O4/3O/74) Device For Transforming Kinetic
                Energy

    3,756,086   McAlister, Roy E. et al (O9/O4/73) Propulsion System

    3,750,484   Benjamin, Paul M. (O8/O7/73) Centrifugal Thrust Motor

    3,683,707   Cook, Robert L. (O8/15/72) Propulsion System

    3,662,554   De Broqueville, Axel (O5/16/72) Electromagnetic Propulsion
                Device For Use In The Forward Part Of A Moving Body

    3,656,013   Hooper, William J. (O4/11/72) Apparatus For Generating A
                Motional Electric Field

    3,653,269   Foster, Richard E. (O4/O4/72) Converting Rotary Motion Into
                Unidirectional Motion

    3,626,606   Wallace, Henry W. (12/14/71) Method And Apparatus For
                Generating A Dynamic Force Field

    3,626,605   Wallace, Henry W. (12/14/71) Method And Apparatus For
                Generating A Secondary Gravitational Force Field

    3,610,971   Hooper, William J. (1O/O5/71) All-Electric Motional Electric
                Field Generator

    3,584,515   Matyas, Laszlo B. (O6/15/71) Propulsion Apparatus

    3,555,915   Young, Hersey W., Jr. (O1/19/71) Directional Force Generator

    3,530,617   Halvorson, Earle M., et al (O9/29/7O) Vibration Driven Vehicle

    3,518,462   Brown, Thomas T. (O6/3O/7O) Fluid Flow Control System

    3,504,868   Engelberger, Joseph F. (O4/O7/7O) Space Propulsion System

    3,495,791   Drell, Sidney D. et al (O2/17/7O) Method Of And Apparatus For
                Effecting Electro-Mechanical Energy Interchange In A
                Space Vehicle

    3,492,881   Auweele, Albert J. V. (O2/O3/7O) Prime Mover

    3,464,207   Okress, Ernest C. (O9/O2/69) Quasi-Corona-Aerodynamic
                vehicle

    3,404,854   di Bella, Alfio (1O/O8/68) Apparatus For Imparting Motion To A
                body

    3,322,374   King, James F., Jr. (O5/3O/67) Magnetohydrodynamic Propulsion
                apparatus

    3,266,233   Farrall, Arthur W. (O8/16/66) Inertia Propulsion Device

    3,263,1O2   Bahnson, Agnew H., Jr. (O7/26/66) Electrical Thrust Producing
                device

    3,238,714   Schur, George O. (O3/O8/66) Thrust motor

    3,227,901   Bahnson, Agnew H., Jr. (O1/O4/66) Electrical Thrust Producing
                device

    3,203,644   Kellogg, H. Dudley (O8/31/65) Gyroscopic Inertial Space
                drive

    3,196,580   Rakestraw, Robert G. (O7/27/65) Toy Vehicle Having Resilient
                supports and Self-Contained Drive Means

    3,187,206   Brown, Thomas T. (O6/O1/65) Electrokinetic Apparatus

    3,182,517   Dean, Norman L. (O5/11/65) Variable Oscillation System

    3,177,660   Haller, Paul (O4/13/65) Propulsion Apparatus

    3,177,654   Gradecak, Vjekoslav (O4/13/65) Electric Aerospace Propulsion
                system

    3,162,398   Clauser, Milton U., et al (12/22/64) Magnetohydrodynamic Control
                systems

    3,130,945   De Seversky, Alexander P. (O4/28/64) Ionocraft

    3,120,363   Hagen, Glenn E. (O2/O4/64) Flying Apparatus

    3,106,167   Rice, Warren A. (1O/O8/63) Propulsion System

    3,095,167   Dudley, Horace C. (O6/25/63) Apparatus For The Promotion And
                control of vehicular flight

    3,095,163   Hill, Gilman A. (O6/25/63) Ionized Boundary Layer Fluid
                pumping system

    3,071,705   Coleman, William J. et al (O1/O1/63) Electrostatic Propulsion
                means

    3,022,430   Brown, Thomas T. (O2/2O/62) Electrokinetic Generator

    3,018,394   Brown, Thomas T. (O1/23/62) Electrokinetic Transducer

    2,958,790   Bahnson, Agnew H., Jr. (11/O1/6O) Electrical Thrust Producing
                apparatus

    2,949,550   Brown, Thomas T. (O4/16/6O) Electrokinetic Apparatus

    2,886,976   Dean, Norman L. (O5/19/59) System For Converting Rotary Motion
                into unidirectional motion

    2,636,340   Llamozas, Juan D. M. (O4/28/53) Direct Push Propulsion
                unit

    2,350,248   Nowlin, Aubrey C. (O5/3O/44) Device For Obtaining Directional
                force from rotary motion

    2,088,115   Neff, Tom (O7/27/37) Reaction Motor

    2,009,780   Laskowitz, Isidor B. (O7/3O/35) Centrifugal Variable Thrust
                mechanism

    1,953,964   Laskowitz, Isidor B. (O4/1O/34) Centrifugal Variable Thrust
                mechanism

    1,511,960   Goldschmidt, Rudolf (1O/14/24) Propulsion of vehicles

    	End of US list, see the above named site for World list.

    	10 June 1997 DavidC INDEX. Top of Page