Patent ID: 6422091
Filing Date: 2002-07-23
Classification: G01N

Abstract:
An apparatus for testing the life expectancy of a straw having a biting end and a pulling end, said apparatus comprising:a frame having a shaft assembly, a lower jaw assembly, a pull body, and first means for moving an upper jaw, said shaft assembly having said upper jaw, said lower jaw assembly having a lower jaw, said pull body assembly having a test straw holder, said test straw holder being adapted to receive the pulling end of the straw such that the biting end is disposed between said upper and lower jaws, wherein said upper and lower jaws are connected to said shaft assembly to slide along a vertical axis, wherein said first moving means is connected to said frame and is adapted to move said upper jaw between a first position and a second position along said vertical axis, and wherein first moving means slides said upper jaw to engage the biting end of the straw between said upper jaw and said lower jaw at said first position and slides said upper jaw to disengage from the biting end at said second position, thereby simulating a biting stress on the straw.