Air mat and method for manufacturing the mat

Details Air mat and method for manufacturing the mat Air mat and method for manufacturing the mat

1994-12-19

1997-08-26

Meyers, Steven N.

Beds

Waterbed or associated device

With highly viscous filler

5710, A47C 2708, A47C 2710

Patent

active

056599080

ABSTRACT:
An air mat comprising an air mat body constructed by two sheets of outside and rearside respectively made of soft non-ventilation synthetic resin sheets and a plurality of forming partition sheets, and various parts welded to the air mat, such as air supply and exhaustion taps an automatic pressure controllers. A swelled condition of a plurality of air chambers formed by the partition sheets is held under the atmosphere or under a supporting pressure previously set. The air mat is manufacture by various steps including a welding step in which respective partition sheets and the outside and rearside sheets are simultaneously welded by upper and lower electrodes of a double high frequency welding machine.

REFERENCES:
patent: 2777490 (1957-01-01), Munk
patent: 4797962 (1989-01-01), Goode
patent: 4908895 (1990-03-01), Walker
patent: 5090076 (1992-02-01), Guldager
patent: 5090077 (1992-02-01), Coden et al.
patent: 5249319 (1993-10-01), Higgs

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