Patent ID: 7065849
Filing Date: 2006-06-27
Classification: A47C,B68G,Y10T

Abstract:
1. A production process for waterproof foam mattresses comprising a foam material body with ventilation holes and a waterproofing covering, the process comprising: providing a foam material body having the size of a mattress to be made, the foam material body comprising large top and bottom faces and four lateral faces; forming a plurality of through holes between the top and bottom faces using a hollow cylindrical drill; drilling longitudinal through holes between two of the lateral sides of the foam material body, the longitudinal through holes having a diameter smaller than a diameter of the plurality of through holes; inserting metal rods in the longitudinal through holes such that ends of the rods protrude from the foam material body, and fixing the protruding ends on a maneuvering supporting frame; spraying the foam material body with a waterproofing material while the foam material body is held on the supporting frame by the rods; tilting the sprayed foam material body held on the supporting frame to an inclined position thereby letting excess waterproofing material drip off and holding the sprayed foam material body on the supporting frame until the waterproof material is gelled, and drying the sprayed foam material body in an oven.