Patent US3887951A successfully refreshed from Google Patents.
US3887951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid bed
Assignee: Pioneer Welding Co Ltd
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Filing: 1974-01-28
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Granted: 1975-06-10
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Expires: 1994-01-28
Abstract
Abstract A bed for a bed-ridden person has head, foot and intermediate mattress-carrying sections supported end-to-end on a main frame. The sections are supported by a system of levers, pivots and rollers, which enables the head section to be inclined upwards in any one of a number of angular positions and simultaneously causes the intermediate and foot sections to be moved in a direction towards the foot of the bed, the intermediate section to take up a position slightly inclined in the opposite sense to the head section, and the foot section to be lowered in height, whilst maintaining an overall smooth profile of the upper surface of mattress portions carried by the sections. The intermediate section is divided on the centre-line of the bed and enables a gap to be opened up between its two parts, the gap being central or to either side of the centre-line of the bed as desired.
Inventors
- 👤 Michael Joseph Yates
- 👤 Kenneth James Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:15
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/015
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
324 words
A bed comprising: a main frame; head-end, middle and foot-end mattress supports mounted end-toend on said main frame; said head-end support having its end nearer the middle support pivotally mounted on said main frame for adjustment of the angle of inclination of said head-end support; a first guideway provided in said head-end support and extending lengthwise thereof; a second guideway provided in said main frame and disposed beneath said foot-end support, said second guideway extending lengthwise of said main frame; a guide element engaged in and movable along said second guideway; a first lever having three pivot points arranged in the form of a triangle, said first lever being pivotally mounted on said main frame by a first of said pivot points thereof and having at A second of said pivot points thereof a guide element engaged in the first said guideway; a second lever to which said middle support is secured and which has three pivot points arranged in the form of a triangle, which pivot points are respectively connected to a first end of said foot-end support nearer said middle support, to the third of the pivot points of said first lever at a location adjacent the said end of the head-end support nearer the middle support, and to said guide element which is engaged in said second guideway; whereby said middle and foot-end supports and said second lever are mounted for movement lengthwise of said main frame in dependence on the angle of inclination of said head-end support; a connection means between said main frame and a location on said foot-end support spaced away from said first end thereof, said connection means being operative for lowering the opposite end of said foot-end support on movement of said foot-end support lengthwise of the bed in a direction away from said middle support; and means for locating said head-end support in selected positions of inclination about its pivotal mounting on said main frame.
Claim 2
Dependent Claim
324 words
A bed comprising: a main frame; head-end, middle and foot-end mattress supports mounted end-toend on said main frame; said head-end support having its end nearer the middle support pivotally mounted on said main frame for adjustment of the angle of inclination of said head-end support; a first guideway provided in said head-end support and extending lengthwise thereof; a second guideway provided in said main frame and disposed beneath said foot-end support, said second guideway extending lengthwise of said main frame; a guide element engaged in and movable along said second guideway; a first lever having three pivot points arranged in the form of a triangle, said first lever being pivotally mounted on said main frame by a first of said pivot points thereof and having at A second of said pivot points thereof a guide element engaged in the first said guideway; a second lever to which said middle support is secured and which has three pivot points arranged in the form of a triangle, which pivot points are respectively connected to a first end of said foot-end support nearer said middle support, to the third of the pivot points of said first lever at a location adjacent the said end of the head-end support nearer the middle support, and to said guide element which is engaged in said second guideway; whereby said middle and foot-end supports and said second lever are mounted for movement lengthwise of said main frame in dependence on the angle of inclination of said head-end support; a connection means between said main frame and a location on said foot-end support spaced away from said first end thereof, said connection means being operative for lowering the opposite end of said foot-end support on movement of said foot-end support lengthwise of the bed in a direction away from said middle support; and means for locating said head-end support in selected positions of inclination about its pivotal mounting on said main frame.
Claim 3
Dependent Claim
91 words
A bed as claimed in claim 1, wherein the middle support comprises a base member which is connected to said second lever, a pair of subframes which are mounted side by side on the base member and which are movable laterally towards and away from each other into any one of at least three positions, whereby the sub-frames can be positioned to form a gap between them in any one of three positions transversely of the bed, and means for locating each of said sub-frames in each of its three positions.
Claim 4
Dependent Claim
45 words
A bed as claimed in claim 1, wherein said connection means comprises an inclined third guideway and an element movable along the guideway, which inclined guideway and element are connected one to the frame and the other to said foot end support at said location.
Claim 5
Dependent Claim
121 words
A bed as claimed in claim 1, further comprising a third guideway provided in the main frame and extending lengthwise thereof, and an arm member which has one end pivotally attached to the first lever and which has at its other end a guide element engaged in and movable along the third guideway, said means for locating the head-end mattress support in selected positions comprising an element fixed to the main frame and extending lengthwise thereof, said element having apertures at intervals along its length, a pin which is attached to said arm member adjacent said other end thereof and which is releasably engageable in any one of said apertures, and a spring urging the pin into engagement with such aperture.
Claim 6
Dependent Claim
23 words
A bed as claimed in claim 1, further comprising a counter-balancing spring operatively urging said head-end mattress section support towards an upright position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |