Inflatable pillow having controlled deflation

Details Inflatable pillow having controlled deflation Inflatable pillow having controlled deflation

1990-02-12

1990-12-25

Trettel, Michael F.

Beds

Bedclothing

And means to facilitate changing thereof

5454, A47G 900

Patent

active

049792490

ABSTRACT:
An inflatable cushion in the form of a pillow including an inflatable bladder having a hand operated air pump for inflating the bladder and an adjustable valve providing for a controlled rate of escape of air from the bladder and thus providing for a controlled rate of deflation of the bladder.

REFERENCES:
patent: 795108 (1905-07-01), Doellinger
patent: 918391 (1909-04-01), Taarud
patent: 2462215 (1949-02-01), Norman et al.
patent: 2686006 (1954-08-01), Hasselquist
patent: 3477071 (1969-11-01), Emerson
patent: 4133064 (1979-01-01), Petrusek
patent: 4142263 (1979-03-01), Pierson
patent: 4161794 (1979-07-01), Darnfors
patent: 4768247 (1988-09-01), Beier
patent: 4796948 (1989-01-01), Paul et al.

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