Module 6 : Bending & Flexing 
  Lecture 16 : Hinges, Flexstraw, Bellow
 

Flexstraw Paradigm

flexstrawstraight
flexstrawbent
http://sparklab.si.edu/images/friedman_02076901-lg.gif
http://t3.gstatic.com/images?q=tbn:ANd9GcSCNyhsG5n_I4f4vgyyjyF4vs8mHe6joW8aHUN8pQTN6mmSzG9o-Q
Plate 16A Flexstraw
16B Flex Straw bent
16C Flex Straw Bending
16D Flex Straw Paten 
 
  16E Auto Tube

(Source:http://www.google.co.in/search?hl=en&noj=1&sa=X&ei=T244ULSEFceGrAeFv4HYDQ&ved
=0CB0QBSgA&q=Flex+Straw&spell=1&biw=1328&bih=574
; Aug. 25, 2012)
16B&Chttp://www.google.co.in/search?hl=en&noj=1&q=Flex%20Straw&biw=1328&bih=574&um=
1&ie=UTF8&tbm=isch&source=og&sa=N&tab=wi&ei=U244ULbtC8WrrAfkgoCQBg
; Aug. 25, 2012)
16D http://sparklab.si.edu/spark-inventors-friedman-img3.html ; Aug. 25, 2012
16Ehttp://www.google.co.in/search?um=1&hl=en&noj=1&biw=1328&bih=574&tbm=isch&sa=1&q=
hose+pipe+in+automobile&oq=hose+pipe+in+automobile&gs_l=img.12...9623.24018.1.25813.27.
20.1.0.0.3.523.3519.5j12j4-2j1.20.0...0.0...1c.fb8h-aC4rtk
; Aug. 25, 2012

The Flexstraw Paradigm is used for bending an external structure, or exoskeleton. It provides flexibility in movement of two joined members. The joint is flexible to stretch the outer surface while squeezing the inner side of the tube.  Joseph Friedman earned U.S. Patent for his "drinking tube," or flexible straw (plate 16D). Automobile engine is fitted with hose/ tube (plate 16E) that has to remain flexible is part of ‘bending and flexing’ paradigm.