Patent EP0218301A2 successfully refreshed from Google Patents.
EP0218301A2
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EP
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Mattress
Assignee: Auping BV
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Filing: 1986-10-03
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Granted: —
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Expires: 2006-10-03
Abstract
Abstract This invention relates to a mattress (1) with one or more closed chambers (23) which are filled with a fluid and connected to means (20, 27) for supplying or removing fluid to or from a chamber (23) each chamber having a device (5, 6, 24, 25) for measuring the distance between the top face and the bottom face of the chamber. The value of the measure distance can be compared with a desired or preset value can be displayed and can be used for manual or automatic control of the contents of each chamber.
Inventors
- 👤 Franciscus Gerhardus Savenije
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:50
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/083; A47C27/082; A47C27/10; A61; A61G; A61G2203/00; A61G2203/30; A61G2203/40
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
91 words
Mattress with a closed chamber(1,23) which is filled with a gaseous or liquid fluid, combined or not combined with an elastic foamed plastic filling, which chamber is provided with means (2,3,4) for supplying or removing fluid to or from the chamber, characterized in that the mattress is provided at least at one point with a measuring device (5,6,24,25) for measuring the distance between the topface of the chamber and said measuring device is connected to a device (8) for making use of the measured values, such as a read-off device (9).
Claim 2
Dependent Claim
91 words
Mattress with a closed chamber(1,23) which is filled with a gaseous or liquid fluid, combined or not combined with an elastic foamed plastic filling, which chamber is provided with means (2,3,4) for supplying or removing fluid to or from the chamber, characterized in that the mattress is provided at least at one point with a measuring device (5,6,24,25) for measuring the distance between the topface of the chamber and said measuring device is connected to a device (8) for making use of the measured values, such as a read-off device (9).
Claim 3
Dependent Claim
49 words
Mattress according to Claim 1, characterized in that the chamber is provided with several measuring devices at distances from each other and said measuring devices are connected to a device which determines the mean of the measured values and makes said mean capable of being used or read off.
Claim 4
Dependent Claim
26 words
Mattress according to Claim 1 or 2 provided with several chambers, characterized in that each chamber or group of chambers is provided with a measuring device.
Claim 5
Dependent Claim
35 words
Mattress according to Claim 3, characterized in that the measuring device of each chamber or group of chambers is coupled to a device for making it possible to use or to read off the measurements.
Claim 6
Dependent Claim
21 words
Mattress according to one or more of the preceding claims, characterized in that the read-off device is provided with a memory.
Claim 7
Dependent Claim
84 words
Mattress according to one or more of the preceding claims, provided with a pump and a release valve, characterized in that, the pump is an electrical pump and the measuring device or measuring devices is/are coupled to a level regulator which is embodied in the electrical circuit of the pump in a manner such that it switches on the pump at a measured level which is lower than that set on the level regulator and switches off the pump on reaching said set level.
Claim 8
Dependent Claim
59 words
Mattress according to Claim 6, characterized in that the release valve is an electrically controlled valve which is embodied in the electrical circuit of the measuring device or measuring devices and of the level regulator in a manner such that said valve opens at a measured level value which is greater than the value set on the level regulator
Claim 9
Dependent Claim
54 words
Mattress according to Claims 6 and 7, characterized in that it is provided with an electronic regulating device which compares the extent of fluctuations of the measured values with a set value and that the regulating device switches off the pump or valve for fluctuations of less than 5 % or more than 50%.
Claim 10
Dependent Claim
26 words
Mattress according to claim 8, characterized in that the regulating device switches off the pump or value at fluctuations which last for less than 5 seconds.
Claim 11
Dependent Claim
20 words
Mattress according to one or more of the preceding claims, characterized in that the measuring device consists of induction loops.
Claim 12
Dependent Claim
39 words
Mattress according to one or more of the preceding Claims 1 to 8 incl., characterized in that the measuring device consists of a resistor, the resistance value of which alters with alteration of the length such as current-conducting foam.
Claim 13
Dependent Claim
33 words
Mattress according to Claim 10, characterized in that it is provided with an electronic regulating and controlling device which determines a mean from the measurements obtained and compares it with a set value.
Claim 14
Dependent Claim
44 words
Mattress according to Claim 9, characterized in that it is provided with an electronic regulating device which compares the measured values with a set value and which switches off the pump or valve operation if the measured values are less than the set value.
Claim 15
Dependent Claim
53 words
Mattress having several chambers according to one or more of the preceding claims, characterized in that each chamber has a measuring device and these are coupled to a microcomputer with a memory which determines the measured values pertaining to certain postures and controls the pump or valve to match an altered lying position.
References Cited (Backward Citations)
No citation records indexed.
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