Patents and Designs

Patent Number Date Inventor(s) Invention
Designs
Design 331 083 November 1992 Gunderson
Selzer
Radio Transmitter Control for Model Airplanes
Patents
4 651 688 March 24, 1987 Selzer
Kirn
Model Airplane Engine Starter and Drive Train
4 440 122 April 3, 1984 Theobald Model Airplane Engine Starter
4 067 139 January 10, 1978 Pinkerton
Malewicki
Electric powered Flying Model Airplane [more...]
3 955 310 May 11, 1976 Renger Automatic Control Device for Tethered Model Airplane
3 132 716 May 12, 1964 Cole Muffler
2 927 660 March 8, 1960 de Groat Self Starter for Model Engines
2 751 898 June 26, 1956 de Groat Model Engine Starter
 
2 292 416 August 11, 1942 Walker Controlled Captive Type Toy Airplane

All these patents and designs were assigned to the company in one of its incarnations except the last patent by Nevilles E. (Jim) Walker.  This last patent was the reason for court action against LeRoy Cox, which finally led to the defeat of the Walker patent. This does not diminish the fantastic contributions to the model aircraft hobby by Jim Walker,

Other Stuff
Design 245 635 August 30, 1977

First I must say, that the following is not my Aprils fool joke. This invention seems to have no direct connection to the Cox company, but the engine shown on the drawings closely resemble a "Pee Wee".
Well, the description says that this is a golf ball with a model aircraft engine - I am very deeply impressed, by the excellent design. Now I understand, what technical innovations and secret technologies were applied for the flights to the moon...

   

 

Last modification of this page: 21.05.18

[Back to Home Page] Suggestions? Corrections? Remarks? e-mail: Martin Hepperle.

Due to the increasing amount of SPAM mail, I have to change this e-Mail address regularly. You will always find the latest version in the footer of all my pages.

It might take some time until you receive an answer and in some cases you may even receive no answer at all. I apologize for this, but my spare time is limited. If you have not lost patience, you might want to send me a copy of your e-mail after a month or so.
This is a privately owned, non-profit page of purely educational purpose. Any statements may be incorrect and unsuitable for practical usage. I cannot take any responsibility for actions you perform based on data, assumptions, calculations etc. taken from this web page.

© 1996-2018 Martin Hepperle
You may use the data given in this document for your personal use. If you use this document for a publication, you have to cite the source. A publication of a recompilation of the given material is not allowed, if the resulting product is sold for more than the production costs.

This document may accidentally refer to trade names and trademarks, which are owned by national or international companies, but which are unknown by me. Their rights are fully recognized and these companies are kindly asked to inform me if they do not wish their names to be used at all or to be used in a different way.

This document is part of a frame set and can be found by navigating from the entry point at the Web site http://www.MH-AeroTools.de/.

Impressum       Datenschutz