Vacuum bag

Abstract

A vacuum bag includes a base; a peripheral wall formed on an edge of the base and including an opening and a plurality of sides; and a vacuum device disposed on one of the sides of the peripheral wall and including a first non-stick member on an inner surface of one of the sides of the peripheral wall, and at least one second non-stick member each disposed on an inner surface of one of the remaining sides of the peripheral wall.

What is claimed is: 
     
         1 . A vacuum bag comprising:
 a base;   a peripheral wall formed on an edge of the base and including an opening and a plurality of sides; and   a vacuum device disposed on one of the sides of the peripheral wall and including a first non-stick member on an inner surface of one of the sides of the peripheral wall, and at least one second non-stick member each disposed on an inner surface of one of the remaining sides of the peripheral wall.   
     
     
         2 . The vacuum bag of  claim 1 , wherein the first non-stick member includes a plurality of projections equally spaced apart and a plurality of grooves equally spaced apart along the virtual circle, and wherein each of the grooves is disposed between two adjacent ones of the projections. 
     
     
         3 . The vacuum bag of  claim 2 , wherein the projections are elongated, the grooves are elongated, and the projections and the grooves are disposed on an inner surface of the vacuum device. 
     
     
         4 . The vacuum bag of  claim 3 , wherein the second non-stick member is a sheet of sandpaper formed on at least one of the sides of the peripheral wall. 
     
     
         5 . The vacuum bag of  claim 1 , further comprising a closing device on the opening for closing the opening prior to a vacuum operation. 
     
     
         6 . The vacuum bag of  claim 5 , wherein the closing device is elongated and alternated. 
     
     
         7 . The vacuum bag of  claim 6 , wherein the vacuum device is a vacuum valve. 
     
     
         8 . The vacuum bag of  claim 7 , further comprising an elongated, releasable fixing member disposed across the opening. 
     
     
         9 . The vacuum bag of  claim 7 , further comprising two opposite rings disposed on the opening. 
     
     
         10 . The vacuum bag of  claim 1 , wherein the vacuum device includes a vent hole and a plurality of numerals around the vent hole, further comprising a suspending plug configured to insert in the vent hole and including a pointer configured to point at one of the numerals when the plug is inserted in the vent hole.