Tube squeezer with automatically operating closure member

Claim 1

A TUBE SQUEEZER COMPRISING A BODY FOR HOLDING A TUBE TO BE SQUEEZED AND HAVING A FORWARD END FROM WHICH END THE SPOUT OF SUCH A TUBE PROJECTS, A SQUEEZING MECHANISM INCLUDING AN OPERATING HANDLE OSCILLATABLE IN PREDETERMINED OPPOSITE DIRECTIONS RELATIVE TO SAID BODY BETWEEN A NORMAL POSITION AND AN OPERATED POSITION ABOUT AN AXIS EXTENDING TRANSVERSELY OF SAID BODY NEAR THE FORWARD END THEREOF, A CLOSURE MEMBER PIVOTALLY SUPPORTED ON THE FORWARD END OF SAID BODY AND MOVABLE RELATIVE THERETO BETWEEN A CLOSED POSITION AT WHICH IT CLOSES THE SPOUT OF A TUBE CONTAINED IN SAID BODY AND AN OPEN POSITION AT WHICH SUCH SPOUT IS UNBLOCKED THEREBY, MEANS FOR BIASING SAID CLOSURE MEMBER TOWARD ITS OPEN POSITION, AND A LATCH MEMBER FOR RELEASABLY HOLDING SAID CLOSURE MEMBER IN ITS CLOSED POSITION, SAID LATCH BEING FIXED TO SAID HANDLE FOR MOVEMENT THEREWITH AND ARRANGED SO AS TO ENGAGE AND HOLD SAID CLOSURE MEMBER IN ITS CLOSED POSITION WHEN SAID HANDLE IS IN ITS NORMAL POSITION AND TO RELEASE SAID CLOSURE MEMBER FOR MOVMENET TO ITS OPEN POSITION WHEN SAID OPERATING HANDLE IS MOVED TOWARD ITS OPERATED POSITION.