Lever type easy pull crown cap

Abstract

A lever type easy pull crown cap. The lever type easy pull crown cap has a body with a boss extending from a central portion that transitions into a rim with an edge. A pull-ring is fastened to the crown body without piercing the body. An inner surface of the body includes a score line extending from the edge along the rim and across the central portion towards the boss and returns outward across the central portion after travelling around the boss to terminate in a tail segment. The tail segment extends along a portion of the rim without reaching the edge. Pulling upward on the pull-ring fractures the body along the score line and separates a tear strip portion from the body, breaking the seal between the lever type easy pull crown cap and the bottle.

1 . A crown cap, comprising:
 a body having a central portion with a boss extending therewith that transitions into a rim with an edge, the body having an inner surface;   a pull-ring having a grasping portion and a lever tab, the lever tab is fastened to the boss, the inner surface of the body includes a score line extending from the edge along the rim and across the central portion towards the boss and returning outward across the central portion after travelling around the boss to terminate in a tail segment that extends along a portion of the rim, whereby pulling the pull-ring upward fractures the body along the score line.   
   
   
       2 . The crown cap as recited in  claim 1 , wherein the central portion further includes a first protrusion and a second protrusion proximate to the boss, and the lever tab of the pull-ring is seated on the first and second protrusions. 
   
   
       3 . The crown cap as recited in  claim 1 , wherein the lever tab is fastened to the boss without piercing the body. 
   
   
       4 . The crown cap as recited in  claim 1 , wherein the section of the score line travelling across the central portion of the body from the edge towards the boss forms an angle ranging between 1-20 degrees with the section of the score line travelling across the central portion back towards the rim after the score line has traveled around the boss. 
   
   
       5 . The crown cap as recited in  claim 1 , wherein the tail segment of the score line has a radius ranging between 1-5 mm. 
   
   
       6 . The crown cap as recited in  claim 1 , wherein the grasping portion of the pull-ring has furled edges. 
   
   
       7 . The crown cap as recited in  claim 1 , wherein the score line is covered by one of the following materials: Polyvinyl chloride or Polyethylene. 
   
   
       8 . The crown cap as recited in  claim 1 , wherein the tail segment does not extend to the edge. 
   
   
       9 . A crown cap, comprising:
 a body having a central portion with a boss that transitions into a rim with an edge, the body having an inner surface with a score line; and   a pull-ring having a grasping portion and a lever tab extending from the grasping portion to a distal end that is keyed to the boss, the body fractures along the score line and partially separates a tear strip portion from the body when the pull-ring is pulled upward, the tear strip portion includes the boss.   
   
   
       10 . The crown cap as recited in  claim 9 , wherein the score line extends from the edge of the rim, along the rim, and across the central portion towards the boss and returns outward across the central portion back towards the rim after travelling around the boss, and terminates in a tail segment that extends along a portion of the rim. 
   
   
       11 . The crown cap as recited in  claim 10 , wherein the lever tab includes a first edge and a second edge, the first and second edges having a notch formed therein at the location where the lever tab extends from the grasping portion of the pull-ring. 
   
   
       12 . The crown cap as recited in  claim 11 , wherein the boss is integrally formed with the central portion of the body. 
   
   
       13 . The crown cap as recited in  claim 12 , wherein the lever tab is keyed to the boss without piercing the boss or the body. 
   
   
       14 . The crown cap as recited in  claim 11 , wherein the central portion of the body includes a pair of protrusions and the lever tab is seated on the pair of protrusions. 
   
   
       15 . The crown cap as recited in  claim 10 , wherein the section of the score line that extends from the rim across the central portion towards the boss forms an angle with the section of the score line returning outward across the central portion back towards the rim after travelling around the boss, the angle having a range between 1-20 degrees. 
   
   
       16 . A crown cap, comprising:
 a body having a central portion with a boss that transitions into a rim with an edge, the body having an inner surface with a score line;   at least one protrusion extending from the central portion of the body and proximate to the boss; and   a pull-ring having a grasping portion and a lever tab, the lever tab is fastened to the boss without piercing the body and is seated on the at least one protrusion.   
   
   
       17 . The crown cap as recited in  claim 16 , wherein the lever tab is keyed to the boss. 
   
   
       18 . The crown cap as recited in  claim 16 , wherein the score line includes a tail section that terminates along the rim without reaching the edge. 
   
   
       19 . The crown cap as recited in  claim 18 , wherein the tail section of the score line is a non-linear line and has a radius between 1 mm-5 mm. 
   
   
       20 . The crown cap as recited in  claim 19 , wherein the score line travels from a point along the edge of the body to the tail section after traveling around the boss.