Beds – Bedclothing – And means to facilitate changing thereof
Patent
1983-06-27
1985-03-19
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5454, 297DIG3, 441 41, A47C 2710, A47C 454
Patent
active
045049890
ABSTRACT:
An inflatable support arrangement includes a plurality of first wall portions each of which bounds an annular inflatable zone and surrounds a central region, and second wall portions which are sealingly connected to the first wall portions and span the distances therebetween to separate the central region from the exterior of the support arrangement. A main one-way inlet valve is arranged in the second wall portion and permits air to be aspired therethrough into the central region when the second walls are moved apart. An auxiliary one-way inlet valve communicates the central region with one of the annular zones and permits air only to flow from the central region into the annular compartment when the end walls are moved together. The first wall portions are sealingly secured to one another by respective seams arranged between the first wall portions, the seams being perforated by respective orifices that communicate the annular zones with one another but are separated from the central region and from the exterior of the support arrangement by the respective seam. An outlet valve for deflating the support arrangement is mounted on one of the first wall portions and communicates the annular zones with the exterior of the support arrangement when open, thus permitting air present in such annular compartments and flowing thereinto through the auxiliary one-way valve to escape into the ambient atmosphere.
REFERENCES:
patent: 2437602 (1948-03-01), Hann
patent: 2698028 (1954-12-01), Lee et al.
patent: 3029109 (1962-04-01), Nail
patent: 3068494 (1962-12-01), Pinkwater
patent: 3533113 (1970-10-01), Stamberger
LandOfFree
Inflatable support arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inflatable support arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inflatable support arrangement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-745994