US2009148639A1PendingUtilityA1

High strength ribbon-woven disposable bag for containing refuse

Assignee: WILLIAMS BRUCE APriority: Mar 14, 2005Filed: Feb 11, 2009Published: Jun 11, 2009
Est. expiryMar 14, 2025(expired)· nominal 20-yr term from priority
Y10T428/1334Y02W30/60B65F 2240/118B65F 1/0006Y10T428/1362
49
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Claims

Abstract

An ultra-strong tear resistant, cut resistant, puncture resistant bag having a high shear strength or modulus is provided by weaving ribbons of flat polypropylene sheet into a bag. The bag is formed by weaving a cylindrically shaped object, cutting the object transversely and sealing up one end to form the bag. The physical properties of the ribbon-woven bag easily accommodate holding refuse including bricks, wood with nails, glass and other refuse in a lightweight disposable bag. In an alternative embodiment, the ribbon-woven bag is overlain with sheets laminated to the exterior of the bag to provide a fluid-tight container.

Claims

exact text as granted — not AI-modified
1 . An ultra strong, tear-resistant, puncture-resistant bag having a high tear strength, comprising:
 a ribbon-woven bag having woven ribbons of flat polypropylene sheet.   
   
   
       2 . The bag of  claim 1 , wherein the width of said ribbons is between 3 and 6 millimeters. 
   
   
       3 . The bag of  claim 2 , wherein the stitch count for said bag is 100 per inch. 
   
   
       4 . The bag of  claim 2 , wherein said ribbons have a 4-millimeter thickness. 
   
   
       5 . The bag of  claim 2 , wherein the Mass/Unit Area in oz/yd 2  of said bag is 2.2. 
   
   
       6 . The bag of  claim 2 , wherein the grab strength of said bag in warp pounds is 121. 
   
   
       7 . The bag of  claim 2 , wherein the grab strength of said bag in filling pounds is 98. 
   
   
       8 . The bag of  claim 2 , wherein the trapezoidal tear strength of said bag in warp pounds is 39. 
   
   
       9 . The bag of  claim 2 , wherein the trapezoidal tear strength in filling pounds of said bag is 32. 
   
   
       10 . The bag of  claim 2 , wherein the burst strength in psi of said bag is 141. 
   
   
       11 . The bag of  claim 2 , wherein the burst strength in psi of said bag with a 16-penny nail hole is 100. 
   
   
       12 . The bag of  claim 2 , wherein the burst strength in psi of said bag with a 0.25″ spike hole is 80. 
   
   
       13 . The bag of  claim 2 , wherein said bag further includes a liquid-tight layer laminated thereto. 
   
   
       14 . The bag of  claim 13 , wherein said liquid-tight layer is laminated to the exterior of said bag. 
   
   
       15 . The bag of  claim 13 , wherein said liquid-tight layer includes a sheet of polypropylene film. 
   
   
       16 . The bag of  claim 15 , wherein said polypropylene film is heat-sealed to said bag. 
   
   
       17 . The bag of  claim 1 , wherein said bag measures 40″ by 29″ and weighs less than 85 grams. 
   
   
       18 . A method of removing refuse having sharp points or edges in an economical fashion, comprising the step of locating the refuse in a disposable ribbon-woven polypropylene bag, the bag having sufficient tear resistance, burst resistance and light enough weight to successfully retain the refuse without failure. 
   
   
       19 . The method of  claim 18 , wherein the bag is made of polypropylene ribbons of 3 millimeters to 6 millimeters. 
   
   
       20 . The method of  claim 19 , wherein the thickness of the ribbons is 4 millimeters. 
   
   
       21 . The method of  claim 19 , wherein the stitch count is 100. 
   
   
       22 . The method of  claim 19 , wherein the Mass/Unit Area in oz/yd 2  is 2.2.

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