Patent US4407029A successfully refreshed from Google Patents.
US4407029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclining platform for bathtub units
Assignee: Schmidt and Lenhardt GmbH and Co OHG
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Filing: 1982-07-14
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Granted: 1983-10-04
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Expires: 2002-07-14
Abstract
Abstract A reclining platform for bathtub units has a rectangular-shaped reclining platform and four hinged plates joined to the side edges of said reclining platform by means of hinges. The hinges are equipped with springs that press the hinged plates into the same plane as the base plate. The hinged plates can pivot upwards against the tension of the built-in springs. The entire reclining platform has a mat, which forms wedges at the corner recesses between each two hinged plates. The mat consists of a flexible material. The reclining platform covers the entire length of the bathtub, without folds, when the unit is in raised position. When the unit is lowered, the hinged plates abut tightly against the tub walls, and the wedges are folded up and close off the rounded corners of the walls as well. The new unit ensures that handicapped persons cannot get caught.
Inventors
- 👤 Peter Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:21
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1001; A61G7/1003; A61G7/1013; A61G7/1019; A61G7/1049; A61G7/1057; A61G2200/00; A61G2200/30; A61G2200/32; A61G7/1021; Y; Y10; Y10S; Y10S5/00; Y10S5/90
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
138 words
A reclining platform for bathtub units, of the type having a base, a bracket plate, and a lift frame and lift device positioned between the base and bracket plate, the reclining platform comprising an oblong, essentially retangular base plate extended in a plane and four hinged plates positioned at front and side edges of the base plane and pivotable upward; one front hinged plate being wider, measured in the longitudinal direction of the base plate, than the front hinged plate opposite it; spring means holding all of the hinged plates close to the base plate for urging the hinged plates to lie at least approximately on a common plane that coincides with the plane of base plate; every two adjacent hinged plates having recesses therebetween and wedges at least partially filled into the recesses, said wedges being flexible.
Claim 2
Dependent Claim
138 words
A reclining platform for bathtub units, of the type having a base, a bracket plate, and a lift frame and lift device positioned between the base and bracket plate, the reclining platform comprising an oblong, essentially retangular base plate extended in a plane and four hinged plates positioned at front and side edges of the base plane and pivotable upward; one front hinged plate being wider, measured in the longitudinal direction of the base plate, than the front hinged plate opposite it; spring means holding all of the hinged plates close to the base plate for urging the hinged plates to lie at least approximately on a common plane that coincides with the plane of base plate; every two adjacent hinged plates having recesses therebetween and wedges at least partially filled into the recesses, said wedges being flexible.
Claim 3
Dependent Claim
50 words
The reclining platform according to claim 1, wherein the base plate and all four hinged plates have top surfaces, and further comprising a single unit, flexible mat including the wedges in corners of the mat, and wherein the base plate and all four hinged plates are covered by the mat.
Claim 4
Dependent Claim
40 words
The reclining platform according to claim 2, wherein the mat has a curved outer contour in the wedge area, and wherein the wedge has a radius at the curved outer contour shorter than the width of the adjacent hinged plates.
Claim 5
Dependent Claim
28 words
The reclining platform according to claim 1, wherein the corners of the base plate and the corners of each hinged plate that abut the base plate are rounded.
Claim 6
Dependent Claim
40 words
The reclining platform according to claim 1, wherein the length of the said hinged plates is less than the length of base plate and the length of the front hinged plates is less than the width of the base plate.
Claim 7
Dependent Claim
32 words
The reclining platform according to claim 3, wherein the mat includes overhanging sections which overhang both narrow edges of the hinged plates, and that the wedges, are connected with these overhanging sections.
Claim 8
Dependent Claim
18 words
The reclining platform according to claim 1, wherein at least the base plate has a plurality of perforations.
Claim 9
Dependent Claim
22 words
The reclining platform according to claim 1, wherein the base plate is removably attached to the bracket plate of the lift frame.
Claim 10
Dependent Claim
32 words
The reclining platform according to claim 2, wherein the mat is turned by 180° over the outer edges of hinged plates and is removably attached to the undersides of the hinges plates.
Claim 11
Dependent Claim
89 words
The reclining platform according to claim 1, comprising hinge means connecting the hinged plates with the base plate, said hinge means comprising frames attached to the top of the hinged plates and at least one of alternating interlocking clamp straps having a common hinge rod extended therethrough being removed and a prong spring through which the hinge rod runs, mounted in place of said removed clamp strap the spring having one prong supported on the base plate and another prong supported on one of the hinged plates attached thereto.
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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |