Patent US5447356A successfully refreshed from Google Patents.
US5447356A
Expired / Lapsed
US
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Chair for disabled persons
Assignee: BV LINIDO A CORP OF NETHERLANDS
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Filing: 1991-04-26
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Granted: 1995-09-05
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Expires: 2011-04-26
Abstract
Abstract A chair for disabled persons has a supporting frame, a seat adjustably connected to the supporting frame by a hinge, and a back adjustably connected by a hinge to the rear of the seat. The seat has a front section which lies beneath and supports the upper legs of an occupant, and a rear section which lies beneath and supports the pelvis of an occupant. The front and rear sections can be fixed and adjusted independently of each other due to a hinge which is parallel to the hinge at the rear of the seat.
Inventors
- 👤 Christiaan J. Snijders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:49
CPC Classifications
A; A61; A61G; A61G5/00; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/405; A61G5/10; A61G5/1091; A61G5/12; A61G5/121; A61G5/125; A61G5/128; A61G5/1056; A61G5/107; A61G5/1075
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat.
Claim 2
Dependent Claim
127 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat.
Claim 3
Dependent Claim
36 words
Chair for the disabled according to claim 1, wherein the hinge which allows the rear section to be adjusted and fixed is in line with the hinge for adjustably connecting the supporting frame to the seat.
Claim 4
Dependent Claim
36 words
Chair for the disabled according to claim 1, wherein the hinge which allows the front section to be adjusted and fixed is in line with the hinge for adjustably connecting the supporting frame to the seat.
Claim 5
Dependent Claim
35 words
Chair for the disabled according to claim 1, wherein the hinge which allows the front section to be adjusted and fixed is located above the hinge for adjustably connecting the supporting frame to the seat.
Claim 6
Dependent Claim
34 words
Chair for the disabled according to claim 1, wherein the distance (A) from the hinge between the front and the rear section to the front of the back ranges from 4 to 15 cm.
Claim 7
Dependent Claim
18 words
Chair for the disabled according to claim 5, wherein adjustment means are provided for adjusting the distance (A).
Claim 8
Dependent Claim
64 words
Chair for the disabled according to claim 1, wherein the section of the seat destined for supporting the pelvis comprises a rearmost section extending up to a position at level with the lumbar region, preferably at the top edge of the sacrum of the lumbar spinal column, at which position the hinge is located for adjustably and fixedly connecting the back to the seat.
Claim 9
Dependent Claim
25 words
Chair for the disabled according to claim 7, wherein the back is also hingable at the point of the kyphotic maximum of the spinal column.
Claim 10
Dependent Claim
43 words
Chair for the disabled according to claim 1, wherein the section of the seat which is destined to support the upper legs comprises two halves, each being separately and adjustably connected to the section of the seat destined to support the pelvis region.
Claim 11
Dependent Claim
33 words
Chair for the disabled according to claim 1, wherein the section of the seat destined for supporting the upper legs is hingably connected to a footrest by means of at least one hinge.
Claim 12
Dependent Claim
159 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat, said rear section of the seat having a foremost section which is positioned at a downward slope towards the rear with respect to the horizontal, at a small angle of about 5°.
Claim 13
Dependent Claim
159 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat, said rear section of the seat having a foremost section which is positioned at a downward slope towards the rear with respect to the horizontal, at a small angle of about 5°.
Claim 14
Dependent Claim
145 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat, and support members in the shape of a number of support faces extending at least over a hinge.
Claim 15
Dependent Claim
145 words
Chair for the disabled, comprising at least a seat, a back and a supporting frame, the seat being adjustably connected to the back by means of a hinge at the rear end of the seat, and the supporting frame being adjustably connected to the seat by means of a hinge, the axes of the said hinges being parallel to one another, wherein the seat is divided into a front section destined to lie beneath and support the upper legs and a rear section destined to lie beneath and support the pelvis, and wherein the front and the rear section can each be fixed and adjusted independently of one another by means of a hinge that is parallel to the hinge at the rear end of the seat, and support members in the shape of a number of support faces extending at least over a hinge.
Claim 16
Dependent Claim
27 words
Chair for the disabled according to claim 12, wherein a number of the support faces is connected on either side of a hinge by means of spacers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-09-04 | 1999-03-06 | 1999-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-04 | 2003-03-06 | 2003-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-04 | 2007-03-06 | 2007-09-05 | $7700.00 | Window Closed / Lapsed |