Company Filing History:
1 out of 23 
1 out of 1 
1 out of 1 Years Active: 1990-1992
Title: Johann Gramberger: Innovator in Friction Ring Manufacturing
Introduction
Johann Gramberger is a notable inventor from Wolfsegg, Austria, recognized for his contributions to the field of friction ring manufacturing. With a total of 2 patents, Gramberger has developed innovative processes that enhance the performance and reliability of clutches and brakes.
Latest Patents
Gramberger's latest patents include a process for manufacturing a friction ring provided with a sinter-bonded friction facing. This process involves blanking an annular blank from flat sheet metal, which is then equipped with a sinter-bonded friction facing. The blank is subsequently shaped into a conical or cylindrical friction ring, with grooves embossed into the friction facing to ensure dimensional accuracy. Another significant patent is a method for manufacturing a friction ring that comprises a supporting ring and a sintered friction lining. This method allows for the production of a self-supporting molded ring from compacted dry powder material, which is then pressed into the supporting ring and finalized through sintering.
Career Highlights
Throughout his career, Johann Gramberger has worked with prominent companies in the industry, including Miba Sintermetall Aktiengesellschaft and Zahnradwerk Neuenstein GmbH. His expertise in sintering technology and friction materials has made him a valuable asset in the field.
Collaborations
Gramberger has collaborated with various professionals, including his coworker Roitner Franz, to advance the development of innovative manufacturing techniques.
Conclusion
Johann Gramberger's contributions to the manufacturing of friction rings have significantly impacted the automotive and machinery sectors. His innovative patents and career achievements reflect his dedication to enhancing product performance and reliability.