Jar adaptors

Abstract

Jar adaptors are provided for mounting jars and aiding in the application of vacuum to the jars. The jar adaptors are configured to mount jars having openings of various sizes. The jar adaptors are configured to mount jars, provide vacuum to the jars, and be subsequently removed from the jars after vacuum has been applied to the jars. Vacuum is maintained in the jars with the aid of a seal formed between the openings of the jars and lids disposed over the openings.

1 . A jar adaptor, comprising:
 an outer shell having a vacuum port;   a first ring having a first circumference, the first ring disposed within the outer shell, the first ring for coming in contact with a jar or a lid over the jar; and   a second ring having a second circumference, the second ring disposed within the outer shell, the second circumference being larger than the first circumference, the second ring for coming in contact with at least a portion of the jar.   
     
     
         2 . The jar adaptor of  claim 1 , further comprising one or more ribs adjacent the first ring, the one or more rings for coming in contact with a lid disposed over a jar. 
     
     
         3 . The jar adaptor of  claim 1 , wherein the outer shell comprises an air inlet port for permitting air to enter a space over the jar. 
     
     
         4 . The jar adaptor of  claim 1 , wherein the outer shell includes a vacuum indicator. 
     
     
         5 . The jar adaptor of  claim 4 , wherein the vacuum indicator changes shape upon the application of vacuum to the jar. 
     
     
         6 . The jar adaptor of  claim 1 , wherein the first ring is for coming in contact with a lid over the jar upon the application of suction from a vacuum device to the jar. 
     
     
         7 . A jar adaptor, comprising:
 an outer shell having a vacuum port; and   one or more rings disposed within the outer shell, the one or more rings for coming in contact with ajar or a lid disposed over the jar.   
     
     
         8 . The jar adaptor of  claim 7 , wherein each of the one or more rings has a circumference that decreases along a vector oriented towards a top surface of the jar adaptor. 
     
     
         9 . The jar adaptor of  claim 7 , wherein the one or more rings comprise a first ring and a second ring. 
     
     
         10 . The jar adaptor of  claim 9 , further comprising one or more ribs adjacent the first ring, the one or more rings for coming in contact with a lid disposed over a jar. 
     
     
         11 . The jar adaptor of  claim 7 , wherein the outer shell comprises an air inlet port for permitting air to enter a space over the jar. 
     
     
         12 . The jar adaptor of  claim 7 , wherein the outer shell includes a vacuum indicator. 
     
     
         13 . The jar adaptor of  claim 12 , wherein the vacuum indicator changes shape upon the application of vacuum to the jar. 
     
     
         14 . An adaptor for providing vacuum to a jar, comprising:
 an outer shell for encircling a rim of the jar, the outer shell having a vacuum port for bringing a vacuum application device in fluid communication with the jar; and   a ring encircled by the outer shell, the ring for coming in contact with a lid disposed over the jar upon the removal of air from the jar with the aid of the vacuum application device.