Patent EP 2 594 824

FOR USE IN GERMANY

FOR SALE

New contact person and patent holder:
Inge Herkenrath, see above for address

This patent was granted on 7 January 2015 – see the patent certificate below – and the 14th annual fee has now been paid, meaning that this patent could continue to be used in Germany for many years to come in a meaningful and COST-EFFECTIVE manner, as soon as a cost-conscious new patent holder wishes to take advantage of the patent's benefits.

This patent has been used profitably for many years in all other countries outside Germany.

European patent application dated 6 November 2012:

» EP2594824A1_Original_document_20200910071225.pdf

European patent specification dated 7 January 2015:

» EP 2 594 824B1

» Register extract from the German Patent and Trademark Office for DE file number 50 2012 001 998.2, stating the change of ownership from Karl Herkenrath to Inge Herkenrath in German

NO CHAIN WITHOUT A CHAIN WHEEL

From small chainsaws via escalators to large earth-moving and open-cast mining machines, the ‘self-adjusting chain wheel’ can be used anywhere without any problems.

   

See also:

Examples of possible applications for the "self-adjusting chain wheel"

Reduced wear

• Less stress on bolts, chains and chain links.
• Low noise thanks to spring compensation, low running-in shock.
• Maintenance-free thanks to self-adjusting chain wheel.

I would like to take this opportunity to point out once again that you cannot purchase chain wheels from me. What is for sale is the patent for use in GERMANY, after the patent rights for the individual countries were gradually relinquished.

As you can see from the numerous publications and letters on the left, Karl Herkenrath had already invented the predecessor patent many years ago and offered it to the chain industry. At that time, two of the self-adjusting chain wheels were also installed in a portal scraper at the Ensdorf power station in Saarland, where they were in use for 8,215 days without the chain needing to be replaced.

The Ensdorf power station no longer exists. Below is a photo of the portal scraper, which remained in use until 2023 even after the power station was decommissioned.

Below you will find a link to a PowerPoint file created by Karl Herkenrath for the PREVIOUS PATENT.

The patent EP 2 594 824, which is now available for sale, features further improvements.

https://selbsteinstellendes-kettenrad.com/SelbsteinstellendesKettenrad_Englisch.ppsx

In the PDF files of the book ‘Erfinder mit langem Atem’ (Inventors with long breath), you can read about all the ‘experiences’ of inventor Karl Herkenrath since 1995.

» Buch: "Erfinder mit langem Atem" als PDF-Datei (Deutsch)
» Book: "Inventor with long breath" as PDF-file (English)

 

You can find several films in different languages on YouTube:

» Have you seen my films on YouTube in different languages?

» Table of contents of all previous films