The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 1979
Filed:
Apr. 07, 1978
Carlos A Mollura, Fullerton, CA (US);
Other;
Abstract
In a water mattress, a series of interior bags or bladders are individually attached to the top and bottom layers in order to damp the movement of water. Each bag or bladder comprises a pair of disks peripherally heat sealed together. The disks are respectively heat sealed to the top and bottom layers. The improvement consists of a method of attachment of the bags or bladders to the top and bottom layers. A removable floating ring die is inserted between the companion disks. Large area dielectric plates close about the disks and ring die. Seals are achieved with very little distortion of the top and bottom mattress layers. The floating die is removed. The process is repeated until all the bags or bladders are attached. The strength of the top and bottom layers is not significantly impaired by the welding process, since no localized stress regions are created there. The hazard of leakage is largely eliminated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile