Bag

Abstract

A bag may include opposing first and second sidewalls of a pliable thermoplastic material that may be joined to each other along first and second side seals and a closed bottom. The sidewalls may remain un-joined along their top edges to form an opening into which trash and other items may be deposited. When the bag is placed in a trash receptacle, the un-joined top edges may be folded over the rim of the receptacle to secure the liner to the receptacle. To assist with securing the bag to the receptacle, the side seals may be directed to converge partially toward each other thereby forming a throat in the interior volume proximate the opening. When the top edges are folded over the receptacle rim, the throat may grip the receptacle. The bag may include a pattern between the converging portions. The bag may include a retention strip between the converging portions.

1 . A thermoplastic bag intended for use as a trash receptacle liner comprising:
 a first flexible sidewall of thermoplastic material;   a second flexible sidewall of thermoplastic material overlying and joined to the first sidewall along a first side seal, a second side seal, and a bottom extending between the first and second side seals, the first and second sidewalls unsealed along respective top edges located opposite the bottom to provide an opening for accessing the interior volume;   wherein the first and second side seals are continuous seals between the bottom and the top edges, the first and second side seals proceed substantially parallel to each other between the bottom toward the opening, the first side seal includes a first converging portion and the first converging portion converges toward the second side seal proximate the opening.   
   
   
       2 . The thermoplastic bag of  claim 1  wherein the second side seal includes a second converging portion wherein the first and second converging portions converge toward each other proximate the opening. 
   
   
       3 . The thermoplastic bag of  claim 1 , wherein the first side seal and the second side seal each maintain a constant width proceeding from the bottom edge to the opening. 
   
   
       4 . The thermoplastic bag of  claim 1 , wherein the first sidewall includes a notch proximate the first converging portion. 
   
   
       5 . The thermoplastic bag of  claim 1 , wherein at least one of the first and second sidewalls is formed with a pattern. 
   
   
       6 . The thermoplastic bag of  claim 6 , wherein the pattern is located between the first converging portion and the second side seal. 
   
   
       7 . The thermoplastic bag of  claim 1 , wherein attached to the first sidewall is a first retention strip, the retention strip located between the first converging portion and the second side seal. 
   
   
       8 . The thermoplastic bag of  claim 7 , wherein the first retention strip is comprised of an elastic material. 
   
   
       9 . The thermoplastic bag of  claim 1 , further comprising a draw tape proximate the opening for drawing closed the opening during disposal. 
   
   
       10 . A thermoplastic bag intended for use as a trash receptacle liner comprising:
 a first flexible sidewall of thermoplastic material;   a second flexible sidewall of thermoplastic material overlying and joined to the first sidewall along a first side seal, a second side seal, and a bottom extending between the first and second side seals, the first and second sidewalls unsealed along respective top edges located opposite the bottom to provide an opening for accessing the interior volume;   wherein the first and second side seals are continuous seals between the bottom and the top edges, the first and second side seals proceed substantially parallel to each other between the bottom toward the opening, the bag having a hem with a hem seal and a hem edge along the first and second sidewall top edges and a draw tape within the hem, wherein there is a first inward seal separate from the side seals near the sidewall top edges.   
   
   
       11 . The thermoplastic bag of  claim 10 , wherein the bag includes a second inward seal separate from the side seals and opposite the first inward seal. 
   
   
       12 . The thermoplastic bag of  claim 10 , wherein the first inward seal covers part of the hem seal. 
   
   
       13 . The thermoplastic bag of  claim 10 , wherein the first inward seal is below the hem seal. 
   
   
       14 . The thermoplastic bag of  claim 10 , wherein the first inward seal is below the hem edge. 
   
   
       15 . The thermoplastic bag of  claim 10 , wherein at least one of the first and second sidewalls is formed with a pattern adjacent to the first inward seal. 
   
   
       16 . The thermoplastic bag of  claim 11 , wherein at least one of the first and second sidewalls is formed with a pattern between the first and second inward seals. 
   
   
       17 . A thermoplastic bag intended for use as a trash receptacle liner comprising:
 a first flexible sidewall of thermoplastic material;   a second flexible sidewall of thermoplastic material overlying and joined to the first sidewall along a first side seal, a second side seal, and a bottom extending between the first and second side seals, the first and second sidewalls unsealed along respective top edges located opposite the bottom to provide an opening for accessing the interior volume;   wherein the first and second side seals include first and second converging portions and there is a pattern between the first and second converging portions.   
   
   
       18 . The thermoplastic bag of  claim 17 , wherein the pattern has a first region, a second region and a third region, the first region is adjacent the second region, the second region is adjacent the third region, the first region has ribs oriented in a first direction, the second region has ribs oriented in a second direction, the third region has ribs oriented in a third direction, the first direction is different than the second direction, the first direction is the same as the third direction. 
   
   
       19 . The thermoplastic bag of  claim 17 , wherein there are notches in the first and second side seals. 
   
   
       20 . The thermoplastic bag of  claim 17 , wherein there are no notches in the first and second side seals.