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US4403357A Expired / Lapsed US ⏱️ 0.0 years remaining

Reclining furniture

Assignee: INPAVER AG
•
Filing: 1980-11-18
•
Granted: 1983-09-13
•
Expires: 2000-11-18
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Abstract

Abstract The frame of an article of reclining furniture supports an under-mattress which comprises a back member, a thigh member and a foot member. The back member is mounted for pivotal movement about an axis in such a manner that upon pivotal displacement the inner end portion thereof is moved under the pivot axis and forms a sitting depression. An intermediate member is freely inserted between the back member and the thigh member. This intermediate member is suspended at the adjacent ends of the back member and the thigh member by joints. Therefore, together with the back member and the thigh member, which is movable with the foot member longitudinally of the article, the intermediate member forms a system of joints which responds to magnitude and point of attack of the load and compensates for anatomical differences and permits the occupant any desired change of his sitting position. Depending upon whether the person changes his position forwards or backwards, the intermediate member will be flush with the back member or the thigh member and thereby ensure always a correct support of the entire spine. The movable connection of the intermediate member with the adjacent ends of the back member and the thigh member is effected preferably by an elastic joint whose two limbs of which include teeth, so that in its closed position the joint may absorb without difficulty even vertical continuous loads.

Inventors

  • 👤 Hugo Degen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 12:19
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C20/00; A47C20/04; A47C20/041; A47C20/08; A61; A61G; A61G2203/00; A61G2203/70; A61G2203/74; A61G7/00; A61G7/002; A61G7/015

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 179 words
An article of reclining furniture comprising: (a) a frame and an under-mattress movably mounted on the frame, (b) the under-mattress including a back member, a foot member, a thigh member and an intermediate member, (c) the pivotable back member having an inner end portion, an outer end portion, and a horizontal pivot axis between said end portions, (d) the foot member being pivotable about a horizontal axis and mounted for displacement in the frame longitudinally of the article and being pivotally connected to one end of the thigh member, (e) the intermediate member being connected to the inner end portion of the back member with a pivot joint and to an adjacent inner end portion of the thigh member with another pivot joint at the end of the thigh member opposite the pivotal connection to the foot member, and (f) the pivot joints have horizontal pivot axes and freely suspend the intermediate member from said two inner end portions respectively so that the intermediate member is freely responsive to the positions of the back member and the thigh member.
Claim 2
Dependent Claim 179 words
An article of reclining furniture comprising: (a) a frame and an under-mattress movably mounted on the frame, (b) the under-mattress including a back member, a foot member, a thigh member and an intermediate member, (c) the pivotable back member having an inner end portion, an outer end portion, and a horizontal pivot axis between said end portions, (d) the foot member being pivotable about a horizontal axis and mounted for displacement in the frame longitudinally of the article and being pivotally connected to one end of the thigh member, (e) the intermediate member being connected to the inner end portion of the back member with a pivot joint and to an adjacent inner end portion of the thigh member with another pivot joint at the end of the thigh member opposite the pivotal connection to the foot member, and (f) the pivot joints have horizontal pivot axes and freely suspend the intermediate member from said two inner end portions respectively so that the intermediate member is freely responsive to the positions of the back member and the thigh member.
Claim 3
Dependent Claim 54 words
The article as defined in claim 1, wherein each pivot joint comprises two coupling members pivotally connected together in an upper region, the coupling members having mutually facing surfaces having coupling elements that interengage in the closed position of the pivot joint and are effective to absorb vertical loads acting upon the pivot joint.
Claim 4
Dependent Claim 29 words
The article as defined in claim 2, wherein the mutually facing surface of the two coupling members have coverings of elastic material in which the coupling elements are formed.
Claim 5
Dependent Claim 27 words
The article as defined in either claim 3 or 4 wherein the coupling elements interengage only when the portions connected by the pivot joint are in line.
Claim 6
Dependent Claim 32 words
The article as defined in claim 1, wherein considered in the longitudinal direction of the article, the intermediate member extends over a minor part of the total length of the back member.
Claim 7
Dependent Claim 25 words
The article as defined in claim 5, wherein the length of the intermediate member is 1/5 to 1/10 of the length of the back member.

References Cited (Backward Citations)

US525959A Cited
US2337395A Cited
US2500742A Cited
FR1295987A Cited
US3312985A Cited
US3540777A Cited
US3703742A Cited
US3974530A Cited
US4057873A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-09-12 1987-03-14 1987-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-09-12 1991-03-14 1991-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-09-12 1995-03-14 1995-09-13 $7700.00 Window Closed / Lapsed

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