US2008137999A1PendingUtilityA1

Bag expanding device

28
Assignee: CHI CHANG DENGPriority: Dec 8, 2006Filed: Dec 8, 2006Published: Jun 12, 2008
Est. expiryDec 8, 2026(~0.4 yrs left)· nominal 20-yr term from priority
Inventors:Chang Deng Chi
B65D 33/02A45C 7/0063A45C 7/0077
28
PatentIndex Score
0
Cited by
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References
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Claims

Abstract

A bag expanding device includes a base portion having two first foldable portions connected to two sides thereof along a first folding portion which is connected between the first foldable portion and the base portion. Two second foldable portions are connected to the two first foldable portions along a second folding portion which is located to connect the first foldable portion and the second foldable portion. Each of the two first folding portions and each of the two second folding portions have at least one biasing member connected thereto such that the first and second foldable portions can be expanded away from the base portion to expand the bag.

Claims

exact text as granted — not AI-modified
1 . A bag expanding device comprising:
 a base portion having two first foldable portions connected to two sides thereof and the two first foldable portions foldable along a first folding portion which is located to connect the first foldable portion and the base portion;   two second foldable portions connected to the two first foldable portions and foldable along a second folding portion which is located to connect the first foldable portion and the second foldable portion;   at least one first biasing member connected to each of the two first folding portions and biased between the base portion and the first foldable portion, and   at least one second biasing member connected to each of the two second folding portions and biased between the first foldable portion and the second foldable portion.   
   
   
       2 . The device as claimed in  claim 1 , wherein the at least one first biasing member is a torsion spring which includes two legs which are respectively in contact with the base portion and the first foldable portion. 
   
   
       3 . The device as claimed in  claim 1 , wherein the at least one second biasing member is a torsion spring which includes two legs which are respectively in contact with the first foldable portion and the second foldable portion. 
   
   
       4 . The device as claimed in  claim 1 , wherein the base portion, the first foldable portions and the second foldable portions are made by paper boards. 
   
   
       5 . The device as claimed in  claim 1 , wherein the base portion, the first foldable portions and the second foldable portions are made by plastic boards. 
   
   
       6 . The device as claimed in  claim 1 , wherein the base portion is a rectangular board.

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