US2016058160A1PendingUtilityA1

Backpack with flexible frame

19
Assignee: RIDLEY BILLPriority: Aug 29, 2014Filed: Aug 31, 2015Published: Mar 3, 2016
Est. expiryAug 29, 2034(~8.1 yrs left)· nominal 20-yr term from priority
Inventors:Bill Ridley
A45F 3/08
19
PatentIndex Score
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Cited by
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Claims

Abstract

A backpack comprising a frame and a harness attached to the frame. The frame has a loop structure defining an opening and a torsion panel traversing the opening. The loop structure may be formed of a coil spring covered by a sheath. The backpack may further strapping, such as bungees, for supporting removable pack bags.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A backpack, comprising:
 a frame including a loop structure defining an opening and a torsion panel traversing the opening, the loop structure being formed of a coil spring covered by a sheath; and   a harness attached to the frame.   
     
     
         2 . The backpack of  claim 1 , wherein the coiled spring is continuous. 
     
     
         3 . The backpack of  claim 1 , wherein the torsion panel is corrugated. 
     
     
         4 . The backpack of  claim 1 , wherein the coil spring is formed of a length of plastic strapping material wrapped in a helical pattern.

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