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For the Inventor, By the Inventor

Niederwerrn, Germany

Gerhard Dumbser

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.8

ph-index = 6

Forward Citations = 221(Granted Patents)


Company Filing History:

goldMedal8 out of 558 
 
Fichtel & Sachs Ag
 patents
silverMedal3 out of 8 
 
Sachs-Huret Sa
 patents

Years Active: 1984-1996

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11 patents (USPTO):Explore Patents
1. 5538270 - Bicycle, and a bicycle having a hydraulic brake, and an actuator for a (1996-07-23),
2. 5522611 - Multiple sprocket chainwheel for bicycle derailleur (1996-06-04),
3. 5464239 - Bicycle, and a bicycle having a hydraulic brake, and an actuator for a (1995-11-07),
4. 4862395 - Data display instrument for a bicycle (1989-08-29),
5. 4835468 - Releasably mounted instrument assembly for a bicycle having elastomeric (1989-05-30),
6. 4832332 - Digital indicating instrument for a physical training device (1989-05-23),
7. 4731306 - Battery arrangement (1988-03-15),
8. 4713567 - Electromagnetic brake device for a sports training apparatus (1987-12-15),
9. 4519227 - Control locking installation for motor vehicle doors (1985-05-28),
10. 4461501 - Lock system for motor vehicles (1984-07-24),
11. 4424548 - Central locking system for lockable entries of buildings or vehicles, (1984-01-03),

Title: Gerhard Dumbser: Innovator in Bicycle Technology

Introduction

Gerhard Dumbser is a notable inventor based in Niederwerrn, Germany. He has made significant contributions to bicycle technology, holding a total of 11 patents. His innovative designs focus on enhancing the functionality and safety of bicycles, particularly through hydraulic braking systems and advanced chainwheel mechanisms.

Latest Patents

Among his latest patents, Gerhard Dumbser has developed a bicycle featuring a hydraulic brake system. This system includes an actuator designed for use on bicycles with handlebars. The actuator comprises a handle housing, a hydraulic master cylinder filled with brake fluid, and a brake handle that generates pressure in the master cylinder. The design allows for the brake hose to be connected both axially parallel to a straight handlebar and at an angle when a curved handlebar is used. Another significant patent is for a multiple sprocket chainwheel for bicycle derailleurs. This innovative design allows for the driving of a hub bushing on the rear wheel using at least two sprockets with different numbers of teeth. The sprockets are arranged non-rotationally on a chainwheel bushing, enabling easy modification and repair without tools.

Career Highlights

Gerhard Dumbser has worked with prominent companies in the bicycle industry, including Fichtel & Sachs AG and Sachs-Huret SA. His experience in these organizations has contributed to his expertise in bicycle technology and innovation.

Collaborations

Throughout his career, Gerhard has collaborated with notable colleagues such as Rainer Fey and Joachim Gajek. These partnerships have fostered a creative environment that has led to the development of groundbreaking bicycle technologies.

Conclusion

Gerhard Dumbser's contributions to bicycle technology through his innovative patents and collaborations have significantly impacted the industry. His work continues to inspire advancements in bicycle design and functionality.

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