Other

Felix F Chen

Ross A Hewitt

Jackson I Ito

Andrew Glasser

John L Grimes

Joseph P Maceda

Svein Hestevik

Randall L Peeters

Kenneth P Klaas

A collapsible and height adjustable stand for a stringed musical instrument is described; specifically, a compact, portable and customizable stand for holding stringed instruments in a secure upright position. The stand can be easily used and also collapsed back quickly after use. Padding on the top and bottom cradle handles holds the instrument and cushions the stringed instruments. Also, a bow hook attached to the upper part of the stand allows for hanging the bow. The adjustable height feature allows the stand to hold musical stringed instruments of different sizes.

Apparatus and methods for a collapsible stand for a stringed instrument

The present invention provides heat exchanging elements for use in Stirling engines. According to the present invention, the heat exchanging elements are made from muliple platelets that are stacked and joined together. The use of platelets to make heat exchanging elements permits Stirling engines to run more effiecient because the heat transfer and combustion processes are improved. In one embodiment, multi-stage combustion can be introduced with platlets, along with the flexibility to use different types of fuels. In another embodiment, a single component constructed from platelets can provide the heat transfer requirements between the combustion gas/working gas, working gas in the regenerator and the working gas/coolant fluid of a Stirling engine. In another embodiment, the platelet heat exchanging element can recieve solar energy to heat the Stirling engine's working gas. Also, this invention provides a heat exchanging method that allows for multiple fluids to flow in opposing or same direction.

Stirling engine having platelet heat exchanging elements

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El Dorado Hills, CA, United States of America

Felix F Chen