Beds – Invalid bed or surgical support – Knockdown – foldable or specially adapted for portability
Patent
1992-09-03
1993-06-08
Trettel, Michael F.
Beds
Invalid bed or surgical support
Knockdown, foldable or specially adapted for portability
5174, 5904, 128 33, A47C 1912
Patent
active
052167690
ABSTRACT:
A foldable bed with sound generating capabilities comprising: a lower assembly formed of a leg section and a body section, a linear hinge coupling the sections for movement between an open orientation and a closed orientation, the lower assembly also including foldable legs; an upper assembly formed of a leg component and a body component, the upper assembly having a fixed central extent with a separation line overhanging the hinge, the upper assembly also having a torso extent, a thigh extent, a calf extent; a first adjuster coupling the torso extent and the body section, a second adjuster coupling the thigh extent and the leg section, a third adjuster coupling the calf extent and the leg section; covering associated with the upper assembly including a cushioning pad overlying the upper surfaces of the upper assembly; and a sound generating device in both the torso extent and the calf extent with the central extent and thigh extent forming an acoustical barrier therebetween, each sound generating device including a speaker with a baffle supporting the speaker and aperture extending through the baffle tending to equalize the pressures in the spaces on opposite sides of the baffle.
REFERENCES:
patent: 1109406 (1914-09-01), Dolge
patent: 3359576 (1967-12-01), Pile
patent: 3456269 (1969-07-01), Goodman
patent: 4023566 (1977-05-01), Martinmaas
patent: 4124249 (1978-11-01), Abbeloos
patent: 4190738 (1980-02-01), Samuels
patent: 4457502 (1984-07-01), Beach
patent: 5035235 (1991-07-01), Chesky
patent: 5090071 (1992-02-01), Bathrick et al.
patent: 5097821 (1992-03-01), Eakin
patent: 5143055 (1992-09-01), Eakin
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