AN AUTOMATIC PARKING COUPON.

摘要

A TIMER COMPRISING A LAMINATION CONTAINING A PIECE OF POROUS WICK MATERIAL 1, AND A RESERVOIR OF LIQUID 6, SAID LIQUID 6 AND/OR SAID POROUS WICK 1 BEING SUCH THAT WHEN THE RESERVOIR IS OPENED AND THE LIQUID 6 RELEASED IT SOAKS INTO THE POROUS WICK 1 TO THEREBY CREATE A VISIBLE TRACE OF THE LIQUID ON OR IN THE POROUS WICK; A FACE PART 2 OF THE LAMINATION BEING TRANSPARENT SUCH THAT SAID VISIBLE TRACE CAN BE SEEN; SAID WICK MATERIAL 1 HAVING IMPOSED THEREON OR POSITIONED ADJACENT THERETO A SERIES OF MARKINGS WHICH COVER THE TIME RANGE OVER WHICH THE TIMER IS TO BE USED. THE INVENTION ALSO PROVIDES A METHOD OF MANUFACTURING THE TIMER.(FIG 1)