Hagmann valves on trombones: tenor, left; bass, with two independent valves, right.
The Hagmann Free-Flow Valve is a trademarked brass instrument valve design developed by Swiss musician and instrument technician René Hagmann, first introduced for trombone F attachments in 1990.[1][2] His intention was to address some of the geometrical limitations of the regular rotary valve, as well as the reliability and maintenance issues of the popular Thayer axial flow valve that arise from its relatively complex design.
^"International Trademarks: 667729 – RENE HAGMANN". Madrid Monitor. World Intellectual Property Organization. Retrieved 4 August 2022.
^"The René Hagmann Free-Flow Valve". Servette Music SA. Retrieved 18 July 2022.
The Hagmann Free-Flow Valve is a trademarked brass instrument valve design developed by Swiss musician and instrument technician René Hagmann, first introduced...
has led to many radical valve designs since the 1970s, such as the Thayer axial flow valve and Hagmannvalve. Axial flow valves are an alternative for...
(born 1953), Swiss judoka Hagman Hagmannvalve, a brass instrument valve This page lists people with the surname Hagmann. If an internal link intending...
valve, and the Edwards AR-1 valve. Brass instrument valveHagmannvalve Wikimedia Commons has media related to Axial flow valves. The Orla Ed Thayer Tribute...
basic design also in use, such as the Thayer axial flow valve and the Hagmannvalve. Rotary valve was first applied to the horn in 1824 by Nathan Adams...
orchestras. The Thayer axial flow valve is offered on professional models from most trombone manufacturers, and the Hagmannvalve particularly from European...
free-blowing valves; Conn patented its own CL2000 valve developed with Swedish trombonist Christian Lindberg, and the Swiss Hagmannvalve was adopted by...
instrument manufacturer Haag released a cimbasso in F built with five Hagmannvalves and a 0.630-inch (16.0 mm) bore. Although discontinued, this instrument...
employ a dual-bore slide, and many models are now made using Axial or Hagmannvalves. Double slide contrabass trombones are still made by German makers Thein...
1016/j.rser.2015.12.089. ISSN 1364-0321. Loewenstein, George; Ho, Emily H.; Hagmann, David (2019). "Nudging out support for a carbon tax". Nature Climate Change...
Cracher 2012, p. 12. Emsley 2011, p. 178. Johnson 2011. Swinson 2005. Hagmann 2008. Mitchell 2004, pp. 37–39. Preskorn 1996, chap. 2. Werner et al. 2011...
Development for Anti-Inflammatory Drug and Delivery Device Bell Labs William K. Hagmann 2012 medicinal chemistry innovations Merck & Co Elwin Orton 2012 Breakthroughs...
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