Chairs and seats – Plural related seats – Relatively rotatable
Patent
1994-10-17
1996-04-09
Brown, Peter R.
Chairs and seats
Plural related seats
Relatively rotatable
297DIG10, 297DIG8, 5 811, 5654, A47C 1500
Patent
active
055055184
ABSTRACT:
An inflatable device for assisting in rasing a seated person to a standing position, comprising a base member formed of a rigid material in a planar configuration, the base member having a leading edge and a trailing edge and side edges therebetween. An upper member is formed of a rigid material in a planar configuration, the upper member having a leading edge and a trailing edge and side edges therebetween. A hinge member couples the leading edge of the base member with the leading edge of the upper member to allow the upper member to pivot into an inoperative position essentially parallel with the base member and an operative orientation positioned thereabove being separated to the greatest extent at the trailing edge. An air impervious membrane couples the base member and the upper member around their peripheries in the areas remote from the hinge to thereby define an air chamber between the base member and upper member. A valve is in operative association with the chamber and exterior of the device to allow the relieving of air within the chamber upon a predetermined excess pressure having been attained or upon the selective discretion of the user. Further included are mechanisms to inflate the membrane. A rotating plate is positioned beneath the lower surface of the base member with a axle rotatable bearing therebetween to allow rotation of the base member and components thereabove with respect to the plate to allow a seated person to reorient by rotational movement of the base member with respect to the plate.
REFERENCES:
patent: 3479087 (1969-11-01), Burke
patent: 4034947 (1977-07-01), Geisel
patent: 4905329 (1990-03-01), Heilner
patent: 5318339 (1994-06-01), Cherniak
patent: 5375910 (1994-12-01), Murphy
patent: 5398994 (1995-03-01), Thomas
Barfield Anthony D.
Brown Peter R.
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