Method of manufacturing multi-hardness and multi-elasticity foam mattress by use of continuous foaming process and foam mattress manufactured thereby
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 28, 2023
Grant Date -
Jul 8, 2021
app pub date -
Apr 24, 2018
filing date -
Sep 8, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of manufacturing a multi-hardness and multi-elasticity foam mattress in which a plurality of foam blocks are formed integrally with each other by use of a continuous foaming process the method comprising the steps of: arranging a plurality of nozzles above one end of a molding plate; installing a separation wall between two adjacent ones of the respective nozzles arranged at the molding plate; laminating a release paper on the top of the molding plate; spraying foaming solutions from the nozzles, respectively, wherein the release paper moves in a direction toward the other end of the molding plate corresponding to a moving speed of the foaming solution; and molding a foam body having a plurality of zones where a plurality of unit foam blocks have multi-hardnesses and multi-elasticities.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully